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''Sorghum bicolor'' is the cultivated species of sorghum; its wild relatives make up the botanical genus ''[[Sorghum]]''.
''Sorghum bicolor'' is the cultivated species of sorghum; its wild relatives make up the botanical genus ''[[Sorghum]]''.


==History==
== Description ==


Sorghum is a large stout grass that grows up to {{convert |2.4 |m |ft}} tall. It has large bushy flowerheads or [[panicle]]s that provide an edible starchy grain with up to 3,000 seeds in each flowerhead. It grows in warm climates worldwide.<ref>{{BONAP|ref|genus=Sorghum|access-date=4 September 2016}}</ref><ref name="Britannica">{{cite web |title=sorghum: grain |url=https://www.britannica.com/plant/sorghum-grain |publisher=Britannica |access-date=6 May 2024}}</ref>
The first archaeological remnants of sorghum are at [[Nabta Playa]] on the Upper [[Nile]], c. 8000 BC. However, these are wild sorghum, with small grains and a brittle [[rachis]]. Sorghum was domesticated from its wild ancestor more than 5,000 years ago in what is today Sudan. The newest evidence comes from an [[archaeological site]] near Kassala in eastern Sudan, dating from 3500 to 3000 BC, and is associated with the neolithic [[Butana Group |Butana Group culture]].<ref>{{Cite web|url=https://www.sci.news/archaeology/earliest-evidence-domesticated-sorghum-05271.html|title=Earliest Evidence of Domesticated Sorghum Discovered &#124; Sci.News|first=News|last=Staff|date=September 28, 2017|website=Sci.News: Breaking Science News}}</ref> It was the staple food of the [[alodia|kingdom of Alodia]] and most Sub-Saharan cultures prior to European colonialism.<ref>Welsby, Derek (2002). The Medieval Kingdoms of Nubia. Pagans, Christians and Muslims Along the Middle Nile. [[British Museum]]. {{ISBN|978-0-7141-1947-2}}.</ref>
One species, ''S. bicolor'', is grown worldwide in large quantities for food and forage.<ref>{{Cite journal |doi=10.1007/s10722-009-9466-7 |volume=57 |issue=2 |pages=243–253 |last1=Mutegi |first1=Evans |first2=Fabrice |last2=Sagnard |first3=Moses |last3=Muraya |first4=Ben |last4=Kanyenji |first5=Bernard |last5=Rono |first6=Caroline |last6=Mwongera |first7=Charles |last7=Marangu |first8=Joseph |last8=Kamau |first9=Heiko |last9=Parzies |first10=Santie |last10=de Villiers |first11=Kassa |last11=Semagn |first12=Pierre |last12=Traoré |first13=Maryke |last13=Labuschagne |title=Ecogeographical distribution of wild, weedy and cultivated ''Sorghum bicolor'' (L.) Moench in Kenya: implications for conservation and crop-to-wild gene flow |journal=Genetic Resources and Crop Evolution |date=2010-02-01 |s2cid=28318220 |display-authors=3 |url=http://oar.icrisat.org/2032/1/GRCE57_243-253__2010.pdf }}</ref> native to Africa with many cultivated forms.<ref>{{cite web |title=Sorghum- and millet-legume cropping systems |url=http://africasoilhealth.cabi.org/wpcms/wp-content/uploads/2015/03/392-ASHC-English-Sorghum-BW-A4-lowres.pdf |last1=Hauser |first1=Stefan |last2=Wairegi |first2=Lydia |last3=Asadu |first3=Charles L.A. |last4=Asawalam |first4=Damian O. |last5=Jokthan |first5=Grace |last6=Ugbe |first6=Utiang |publisher=Centre for Agriculture and Bioscience International and Africa Soil Health Consortium |access-date=7 October 2018 |date=2015}}</ref>
*''durra'', developed in India
Seventeen of the 25 species are native to [[Australia]],<ref name="ITS-ndhF">{{ Cite journal |language=en |year=2016 |volume=14 |issue=4 |pages=1070–85 |first3=Marta |first2=Agnelo |first1=Robert |last3=Brozynska |last2=Furtado |last1=Henry |issn=1467-7644 |eissn=1467-7652 |journal=Plant Biotechnology Journal |title=Genomics of crop wild relatives: expanding the gene pool for crop improvement |s2cid=3402991 |pmid=26311018 |doi=10.1111/pbi.12454 |doi-access=free}}</ref><ref>{{ Cite journal |first1=Sally L. |last1=Dillon |first2=Peter K. |last2=Lawrence |first3=Robert J. |last3=Henry |first4=Larry |last4=Ross |first5=H. James |last5=Price |first6=J. Spencer |last6=Johnston |issn=0378-2697 |eissn=1615-6110 |journal=Plant Systematics and Evolution |s2cid=27363366 |doi=10.1007/s00606-004-0210-7 |title=''Sorghum laxiflorum'' and ''S. macrospermum'', the Australian native species most closely related to the cultivated ''S. bicolor'' based on ITS1 and ''ndh''F sequence analysis of 28 ''Sorghum'' species |date=2004 |volume=249 |issue=3–4 |pages=233–246 |bibcode=2004PSyEv.249..233D }}</ref><ref name="Dillon Lawrence Henry Ross 2004">{{cite journal |last=Dillon |first=S. L. |last2=Lawrence |first2=P. K. |last3=Henry |first3=R. J. |last4=Ross |first4=L. |last5=Price |first5=H. J. |last6=Johnston |first6=J. S. |title=Sorghum laxiflorum and S. macrospermum, the Australian native species most closely related to the cultivated S. bicolor based on ITS1 and ndhF sequence analysis of 25 Sorghum species |journal=Plant Systematics and Evolution |volume=249 |issue=3-4 |date=2004 |issn=0378-2697 |doi=10.1007/s00606-004-0210-7 |pages=233–246}}</ref> with the range of some extending to Africa, Asia, [[Mesoamerica]], and certain islands in the [[Indian Ocean |Indian]] and [[Pacific Islands |Pacific]] Oceans.<ref>{{cite web |title=Tropicos, ''Sorghum'' Moench |url=http://www.tropicos.org/Name/40002210 |access-date=2018-05-31 |publisher=Tropicos}}</ref><ref name="china">{{cite web |title=Flora of China Vol. 22 Page 600 高粱属 gao liang shu ''Sorghum'' Moench, Methodus. 207. 1794 |url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=130722 |access-date=2018-05-31 |publisher=Efloras}}</ref>
*''guinea'', a West African variety requiring high rainfall
*''caudatum'', grown by [[Nilo-Saharan languages|Nilo-Saharan]] peoples between [[Lake Chad]] and [[Ethiopia]]
*''kafir'', a drought-resistant type grown in Southern Africa
*''bicolor'', the most common grain<ref>{{Cite book|url=https://books.google.com/books?id=q7O7tycPzBgC&q=+Sorghum++&pg=PA306|title=A History of Atmospheric CO2 and Its Effects on Plants, Animals, and Ecosystems|first1=James R.|last1=Ehleringer|first2=Thure|last2=Cerling|first3=M. Denise|last3=Dearing|date=March 30, 2006|publisher=Springer Science & Business Media|isbn=9780387270487|via=Google Books}}</ref>


<gallery class=center mode=nolines widths=180 heights=180>
Sorghum grain cannot be consumed unless the indigestible husk is removed. During the transatlantic slave trade, "the only way to remove the husk was by hand, with mortar and pestle."<ref name="Carney">{{Cite book|last=Carney|first=Judith|url=http://dx.doi.org/10.1525/9780520949539|title=In the Shadow of Slavery|date=2011-02-01|publisher=[[University of California Press]] (UCP)|doi=10.1525/9780520949539|isbn=978-0-520-94953-9}}</ref> In the United States enslaved women did most of the work in preparing the sorghum and were tasked with cleaning the grain and turning it into flour.<ref name="Carney"/> Sorghum in the United States was first recorded by [[Ben Franklin]] in 1757.<ref>{{Cite web|url=https://www.sorghumcheckoff.com/all-about-sorghum#:~:text=HISTORY_OF_SORGHUM&text=The_earliest_known_record_of,to_the_semi%2Darid_Sahel.|title = All About Sorghum|website=The [[United Sorghum Checkoff Program]]}}</ref>
File:Flore médicale des Antilles, ou, Traité des plantes usuelles (10559146133) (cropped).jpg |Botanical illustration of ''[[Sorghum bicolor]]'' or great millet, one of some 25 species in the ''Sorghum'' genus
File:Sorghum bicolor.JPG |''S. bicolor'' with maturing [[panicle]]s of grain, Germany
File:दगडी ज्वारी, आटपाडी Dagadi Jowar, Aatpadi (Sorghum bicolor).jpg |Ripe panicle of ''S. bicolor'', India
File:Sorghum bicolor (s. lat.) p. p. sl32.jpg|alt=Grains|thumb|Branch of panicle with [[spikelet]]s
</gallery>


== Evolution ==
Some varieties of sorghum were important to the [[sugar]] trade. In 1857 James F.C. Hyde wrote, "Few subjects are of greater importance to us, as a people, than the producing of sugar; for no country in the world consumes so much as the United States, in proportion to its population."<ref>{{cite book |last=Hyde |first=James F.C. |title=The Chinese Sugar-Cane: Its History, Mode of Culture, Manufacture of the Sugar, Etc. with Reports of Its Success in Different Portions of the United States, and Letters from Distinguished Men |publisher=J. P. Jewett |date=1857 |location=[[Boston]] |url=https://books.google.com/books?id=fA_tOyZnXyUC&q=sorghum+sugar+syrup+china}}</ref> The price of sugar was rising because of decreased production in the British [[West Indies]] and more demand for [[confectionery]] and [[fruit preserves]], and the United States was actively searching for a sugar plant that could be produced in northern states. The "Chinese sugar-cane" as it was called was viewed as a plant that would be productive and high-yielding in that region.<ref>{{cite book |last=Hyde |first=James F.C. |title=The Chinese Sugar-Cane: Its History, Mode of Culture, Manufacture of the Sugar, Etc. with Reports of Its Success in Different Portions of the United States, and Letters from Distinguished Men |publisher=J. P. Jewett |date=1857 |location=[[Boston]] |url=https://books.google.com/books?id=fA_tOyZnXyUC&q=sorghum+sugar+syrup+china |page=11}}</ref>


=== Phylogeny ===
[[Richard Pankhurst (academic)|Richard Pankhurst]] reports (citing Augustus B. Wylde) that in 19th-century [[Ethiopia]], ''durra'' was "often the first crop sown on newly cultivated land", explaining that this cereal did not require the thorough ploughing other crops did, and its roots not only decomposed into a good fertilizer, but they also helped to break up the soil while not exhausting the [[subsoil]].<ref>Richard Pankhurst, ''Economic History of Ethiopia'' ([[Addis Ababa]]: [[Haile Selassie I University]], 1968), p. 193.</ref>


Sorghum is closely related to [[maize]] within the [[PACMAD clade]] of grasses, and more distantly to the [[cereal]]s of the [[BOP clade]] such as [[wheat]] and [[barley]].<ref name="Escobar Scornavacca Cenci Guilhaumon 2011">{{cite journal |last1=Escobar |first1=Juan S |last2=Scornavacca |first2=Céline |last3=Cenci |first3=Alberto |last4=Guilhaumon |first4=Claire |last5=Santoni |first5=Sylvain |last6=Douzery |first6=Emmanuel J. P. |last7=Ranwez |first7=Vincent |last8=Glémin |first8=Sylvain |last9=David |first9=Jacques |display-authors=5 |title=Multigenic phylogeny and analysis of tree incongruences in Triticeae (Poaceae) |journal=BMC Evolutionary Biology |volume=11 |issue=1 |date=2011 |page=181 |pmid=21702931 |pmc=3142523 |doi=10.1186/1471-2148-11-181 |doi-access=free|bibcode=2011BMCEE..11..181E }}</ref>
In 19th-century European accounts, the term "millet", or in Portuguese sources ''Milho'', was often used both for [[pearl millet]] and for sorghum, and there may also have been confusion with maize. Researchers suspect this is because their vegetative cycle is so similar. When sorghum matures, it produces a tassel of exposed grains, whereas maize produces a sheathed cob. All of these crops were grown in Africa and sold on slave ships.<ref name="Carney"/>


{{clade|style=font-size:100%;line-height:100%
== Cultivation ==
|label1=(Part of [[Poaceae]])
[[File:Sorghum bicolor (s. lat.) p. p. sl32.jpg|alt=Grains|thumb|Branch of [[panicle]] with [[spikelet]]s]]
|1={{clade
[[File:Sorghum head in India.jpg|thumb|[[Seed head]]]]
|label1= [[BOP clade]]
[[File:Sorgho rouge blanc.jpg|alt=Red and white grains|thumb|Harvested red [[seed]] head on white seed heads]]
|1={{clade
The leading producers of ''S. bicolor'' in 2022 were Nigeria (12%), USA (10%), Sudan (8%), and Mexico (8%).<ref name=Sorghum>{{cite web|url=https://ipad.fas.usda.gov/cropexplorer/cropview/commodityView.aspx?startrow=1&cropid=0459200&sel_year=2022&rankby=Production|title= Sorghum 2022 World Production profile|author1=[[USDA Foreign Agricultural Service]]}}</ref> It is also successfully cultivated in Europe: The most important producer in terms of cultivated area is France, followed by Italy, Spain and some south-eastern European countries with cultivation areas of several thousand hectares.<ref name="Agrarforschung Schweiz">{{cite web |last1=Hiltbrunner |first1=Jürg |title=Körnersorghum – eine in der Schweiz noch unbekannte, interessante Ackerkultur. |url=https://www.agrarforschungschweiz.ch/wp-content/uploads/2019/12/2012_1112_1822.pdf |website=agrarforschungschweiz |access-date=12 November 2022}}</ref> Sorghum grows in a wide range of temperatures, high altitudes, and toxic soils, and can recover growth after some drought.<ref name="FAO"/> Optimum growth temperature range is {{ Convert |12-34|C}}, and the growing season lasts for ~ 115-140 days. <ref name="GRDC Grownotes">{{cite web|title=Sorghum - Section 4: Plant Growth and Physiology|url=https://grdc.com.au/resources-and-publications/grownotes/crop-agronomy/sorghumgrownotes/GrowNote-Sorghum-North-04-Physiology.pdf|website=[[Grain Research & Development Corporation]]|access-date=4 December 2022|archive-date=11 November 2022|archive-url=https://web.archive.org/web/20221111230932/https://grdc.com.au/resources-and-publications/grownotes/crop-agronomy/sorghumgrownotes/GrowNote-Sorghum-North-04-Physiology.pdf|url-status=dead}}</ref> It can grow on a wide range of soils, such as heavy clay to sandy soils with the pH tolerance ranging from 5.0 to 8.5.<ref name="Smith">{{Cite book|url=https://books.google.com/books?id=b7vxU44v794C&q=sorghum+verticilliform&pg=PA91|title=Sorghum: Origin, History, Technology, and Production|first1=C. Wayne|last1=Smith|first2=Richard A.|last2=Frederiksen|date=December 25, 2000|publisher=John Wiley & Sons|isbn=9780471242376|via=Google Books}}</ref> It requires an arable field that has been left fallow for at least two years or where [[crop rotation]] with legumes has taken place in the previous year.<ref name="Sorghum Handbook">{{cite book |last1=Ajeigbe |first1=Hakeem A. |title=Handbook on improved agronomic practices of sorghum production in north east Nigeria |date=2020 |publisher=[[ICRISAT]]|location=[[Patancheru]]}}</ref> Diversified 2- or 4-year crop rotation can improve sorghum yield, additionally making it more resilient to inconsistent growth conditions.<ref>{{cite journal |last1=Sindelar |first1=Aaron J. |last2=Schmer |first2=Marty R. |last3=Jin |first3=Virginia L. |last4=Wienhold |first4=Brian J. |last5=Varvel |first5=Gary E. |title=Crop Rotation Affects Corn, Grain Sorghum, and Soybean Yields and Nitrogen Recovery |journal=[[Agronomy Journal]]|date=2016 |volume=108 |issue=4 |pages=1592–1602|doi=10.2134/agronj2016.01.0005 }}</ref> In terms of nutrient requirements, sorghum is comparable to other cereal grain crops with nitrogen, phosphorus, and potassium required for growth.<ref name="Rooney">{{cite journal |last1=Rooney |first1=W.L. |title=Sorghum |journal=[[Reference Module in Food Science]]|date=2016|doi=10.1016/B978-0-08-100596-5.02986-3 |isbn=9780081005965 }}</ref> It has five features that make it one of the most drought-resistant crops:
|1=[[Bambusoideae]] (bamboos)
* It has a very large root-to-leaf surface area ratio.
|2={{clade
* In times of drought, it rolls its leaves to lessen water loss by transpiration.
|label1=[[Pooideae]]
* If drought continues, it goes into dormancy rather than dying.
|1={{clade
* Its leaves are protected by a waxy cuticle.
|label1=other grasses
* It uses [[C4 carbon fixation]] thus using only a third of the amount of water that C3 plants require.
|1=&nbsp;([[fescue]], [[ryegrass]])
[[File:Sorghum in Addi Azmera.jpg|thumb|Sorghum field|alt=Field in [[Addi Azmera]]]]
|label2= &nbsp; [[Triticeae]] &nbsp;
[[File:Sorghum bicolor Moderne MHNT.BOT.2015.34.152.jpg|thumb|''Sorghum bicolor Moderne'' ([[MHNT]])]]
|2={{clade
[[File:Sorghum bicolor noir MHNT.BOT.2016.12.2.jpg|thumb|''Sorghum bicolor noir'' ([[MHNT]])]]
|1=''[[Hordeum]]'' (barley)
|2={{clade
|1=''[[Triticum]]'' (wheat)
|2=''[[Secale]]'' (rye)
}}
}}
}}
|2=''[[Oryza]]'' (rice)
}}
}}
|label2= [[PACMAD clade]]
|2={{clade
|1=''[[Pennisetum]]'' (fountaingrasses, [[pearl millet]])
|2={{clade
|1='''''Sorghum''''' (sorghum)
|2=''[[Zea (plant)|Zea]]'' (maize)
}}
}}
}}
}}


=== Taxonomy ===
{| class="wikitable"
|+ Sorghum Growth Stages
|-
! Stage !! What <ref name="GRDC Grownotes"/><ref>{{cite journal |last1= Vanderlip|first1=R.L. |last2= Reeves|first2= H.E.|title=Growth Stages of Sorghum (''Sorghum bicolor'', (L.) Moench) |journal=[[Agronomy Journal]]|date= January 1972 |volume=64 |issue=1 |pages=13–16 |doi=10.2134/agronj1972.00021962006400010005x}}</ref>


''Sorghum'' is in the grass family, [[Poaceae]], in the subfamily [[Panicoideae]], in the tribe [[Andropogoneae]] {{endash}} the same as [[maize]] (''Zea mays''), big bluestem (''[[Andropogon gerardi]]''), and [[sugarcane]] (''Saccharum'' spp.).
|-
| I || Emergence, depending on air temperature and soil moisture between 3 & 10 days after seeding
|-
| II || Collar of third leaf visible
|-
| III || Collar of fifth leaf visible, ~21 days after emergence
|-
| IV || Change from vegetative to reproductive growth, 7 to 10 leaves expanded, floral initiation
|-
| V || All leaves fully expanded
|-
| VI || Half of plants blooming (in field, or individual plant)
|-
| VII || "Soft dough": accumulation of ~50% half grain dry weight
|-
| VIII || "Hard dough": accumulation of ~75% half grain dry weight, nutrient uptake complete
|-
| IX || Physiological maturity: maximum dry weight of plant reached
|}


Accepted species recorded include:<ref name="TPL">{{cite web |date=2013 |title=The Plant List: ''Sorghum'' |url=http://www.theplantlist.org/tpl1.1/search?q=sorghum |access-date=28 February 2017 |publisher=[[Royal Botanic Gardens Kew]] and Missouri Botanic Garden}}</ref>
===Nutritional values===


[[File:Sorghum at the market.JPG|thumb|Sorghum flour on sale in a street market, Ethiopia, 2013]]
''S. bicolor'' is rich in minerals like phosphorus, potassium and zinc.<ref name = "Morais">{{cite journal |last1=de Morais Cardoso |first1=Leandro |title=Sorghum (''Sorghum bicolor'' L.): Nutrients, bioactive compounds, and potential impact on human health |journal=[[Critical Reviews in Food Science and Nutrition]]|date=28 Oct 2016 |volume=57:2, 372-390 |issue=2 |pages=372–390 |doi=10.1080/10408398.2014.887057 |pmid=25875451 |s2cid=8098008 |url=https://doi.org/10.1080/10408398.2014.887057}}</ref> The nutritional values of ''S. bicolor'' are comparable to those of rice, corn and wheat. The energy value of 100 g ''S. bicolor'' grains ranges from 296.1 to 356.0 kcal.<ref name="Morais" /> The grains contain 60 – 75% carbohydrates, 8 – 13% protein and 4 – 6 % fat.<ref name = "Volker">{{cite journal |last1=Volker |first1=Beyel |title=Wirkung von Trockenstreß auf unterschiedliche Kultivare von ''Sorghum bicolor''|date=2003 |pages=138}}</ref> The [[Sucrose|saccharose]] and [[glucose]] content in the stalk is 10 – 16%.<ref name="Volker" /> In comparison, [[Sugarcane|sugar cane]] has a sugar content of 10 - 20%. Thus ''S. Bicolor'' can be used as an alternative to [[Sugarcane|sugar cane]]. The low starch digestibility of sorghum is caused by the association between the starch granules with the [[Protein|proteins]] and [[Tannin|tannins]].<ref name="Morais" /> The digestibility of the [[Protein|proteins]] is lower than those of wheat and corn.<ref name="Morais" /> In contrast to the [[Prolamin|prolamins]] of wheat, rye and barley, the [[kafirin]]s of sorghum do not provoke allergic reactions or autoimmune response in humans.<ref name="Morais" /> Furthermore, the properties of sorghum inhibit the expression of toxic [[Peptide|peptides]] related to [[gliadin]], making ''S. bicolor'' a safe grain for consumption by people with [[Coeliac disease|celiac disease]].<ref name="Morais" />
Jowar is the finest substitute for wheat and rice when it comes to nutrition because it has high levels of thiamine, niacin, riboflavin, and folate.


[[File:A plate of sorghum grain.jpg|thumb|A plate of sorghum grain]]
===Cultivation difficulties===


{{Columns-list|colwidth=30em|
The successful regulation of weeds is a big challenge in the cultivation of sorghum due to its slow juvenile growth. Control can be executed mechanically but needs to be done with caution as sorghum has a fine and shallow root system.<ref name="Agrarforschung Schweiz"/>
* ''[[Sorghum amplum]]'' – northwestern Australia
* ''[[Sorghum angustum]]'' – Queensland
* ''[[Sorghum arundinaceum]]'' – Africa, Indian Subcontinent, Madagascar, islands of the western Indian Ocean
* ''[[Sorghum bicolor]]''&nbsp;– cultivated sorghum, often individually called sorghum, also known as durra, jowari, or milo. Native to Sahel region of Africa; naturalized in many places
* ''[[Sorghum brachypodum]]'' – Northern Territory of Australia
* ''[[Sorghum bulbosum]]'' – Northern Territory, Western Australia
* ''[[Sorghum burmahicum]]'' – Thailand, Myanmar
* ''[[Sorghum controversum]]'' – India
* ''[[Sorghum × drummondii]]'' – Sahel and West Africa
* ''[[Sorghum ecarinatum]]'' – Northern Territory, Western Australia
* ''[[Sorghum exstans]]'' – Northern Territory of Australia
* ''[[Sorghum grande]]'' – Northern Territory, Queensland
* ''[[Johnson grass|Sorghum halepense]]''&nbsp;– Johnson grass – North Africa, islands of eastern Atlantic, southern Asia from Lebanon to Vietnam; naturalized in East Asia, Australia, the Americas
* ''[[Sorghum interjectum]]'' – Northern Territory, Western Australia
* ''[[Sorghum intrans]]'' – Northern Territory, Western Australia
* ''[[Sorghum laxiflorum]]'' – Philippines, Lesser Sunda Islands, Sulawesi, New Guinea, northern Australia
* ''[[Sorghum leiocladum]]'' – Queensland, New South Wales, Victoria
* ''[[Sorghum macrospermum]]'' – Northern Territory of Australia
* ''[[Sorghum matarankense]]'' – Northern Territory, Western Australia
* ''[[Sorghum nitidum]]'' – East Asia, Indian Subcontinent, Southeast Asia, New Guinea, Micronesia
* ''[[Sorghum plumosum]]'' – Australia, New Guinea, Indonesia
* ''[[Sorghum propinquum]]'' – China, Indian Subcontinent, Southeast Asia, New Guinea, Christmas Island, Micronesia, Cook Islands
* ''[[Sorghum purpureosericeum]]'' – Sahel from Mali to Tanzania; Yemen, Oman, India
* ''[[Sorghum stipoideum]]'' – Northern Territory, Western Australia
* ''[[Sorghum timorense]]'' – Lesser Sunda Islands, Maluku, New Guinea, northern Australia
* ''[[Sarga trichoclada|Sorghum trichocladum]]'' – Mexico, Guatemala, Honduras
* ''[[Sarga versicolor|Sorghum versicolor]]'' – eastern + southern Africa from Ethiopia to Namibia; Oman
* ''[[Sorghum virgatum]]'' – dry regions from Senegal to the Levant.
}}


===Pests and parasites===
== History ==
{{see also|List of sorghum diseases}}
[[File:Turpan Millet.jpg|thumb|upright|Recurved [[peduncle (botany)|peduncle]] trait. In some varieties and in certain conditions, the heavy panicle will make the young soft peduncle bend, which then will [[Lignification|lignify]] in this position. Combined with [[Awn (botany)|awn]]ed [[inflorescence]], this forms a two-fold [[avian pest|defence against birds]].]]
Insect damage is a big threat. Over 150 species have been reported to damage Sorghum at different stages of development. This threat generates a significant biomass loss.<ref>{{cite journal |last1=Guo |first1=Chunshan |last2=Cui |first2=Wei |last3=Feng |first3=Xue |last4=Zhao |first4=Jianzhou |last5=Lu |first5=Guihua |title=Sorghum insect problems and management |journal=[[Journal of Integrative Plant Biology]]|date=2011 |volume=53 |issue=3 |pages=178–192 |doi=10.1111/J.1744-7909.2010.01019.X|pmid=21205185 }}</ref> Sorghum is a host of the parasitic plant ''[[Striga hermonthica]]''.<ref>{{cite journal |author1=Yoshida, Satoko |author2=Maruyama, Shinichiro |author3=Nozaki, Hisayoshi |author4=Shirasu, Ken |date=28 May 2010 |journal=[[Science (journal)|Science]]|volume=328 |pages=1128 |doi=10.1126/science.1187145 |issue=5982 |pmid=20508124 |title=Horizontal Gene Transfer by the Parasitic Plant ''Stiga hermanthica'' |bibcode= 2010Sci...328.1128Y |s2cid=39376164 }}</ref> This parasite is a devastating pest on the crop. The European corn borer (''[[European corn borer|Ostrinia nubilalis]]'') was introduced to North America by transport of infested sorghum broom corn.<ref>{{Cite web|url=http://passel.unl.edu/pages/informationmodule.php?idinformationmodule=994877762&topicorder=2&maxto=11|title=Plant and Soil Sciences eLibrary|website=passel.unl.edu|access-date=2017-11-13}}</ref>


=== Domestication ===
The following pest species are reported for sorghum crops in northern [[Mali]].<ref name=insects>{{cite web| last=Heath |first=Jeffrey |author-link=Jeffrey Heath |title=Guide to insects, arthropods, and molluscs of northern Dogon country |url=https://dogonlanguages.org/sources/insectarthropodmolluscnotesmalijh}}</ref>


[[File:Piece of sorghum bread contained in basket S - Museo Egizio, Turin S 285 p09.jpg|thumb|Piece of sorghum bread contained in basket, [[Predynastic Egypt]], {{circa}} 3100 BC (5,100 years ago). [[Museo Egizio|Egyptian Museum, Turin]]<ref name="Museo Egizio">{{cite web |title=Pane di sorgo contenuto nel cesto S. 283; fa parte del corredo funerario infantile della mummia S. 278 |url=https://collezioni.museoegizio.it/it-IT/material/S_285 |publisher=Egyptian Museum, Turin |access-date=6 May 2024 |quote=S. 285, la 15 Vetrina 02}}</ref>]]
*''[[Atherigona soccata]]'' (sorghum shoot fly, a major pest): The larvae cut the growing point of the sorghum leaf.
*''[[Agonoscelis pubescens]]'' is also reported as a sorghum pest.
*''[[Busseola fusca]]'' (maize stem-borer; Lepidoptera, [[Noctuidae]]) attacks maize and sorghum, and occurs especially at higher altitudes. It is a common pest in [[East Africa]], but has also spread to [[West Africa]].
*''[[Chilo partellus]]'' (spotted stem-borer; Lepidoptera, [[Crambidae]]): introduced, from East Africa but spreading. The larvae attack sorghum and maize. Present at low and mid altitudes.
*''[[Contarinia sorghicola]]'' (sorghum midge or ''cecidomyie du sorgho'' in French; Diptera, [[Cecidomyiidae]]): The adult resembles mosquitoes. Larvae feed on developing ovaries of sorghum grains.
*''[[Melanaphis sacchari]]'' (sugar cane aphid) attacks sorghum.


''S. bicolor'' was [[domesticated]] from its wild ancestor more than 5,000 years ago in Eastern [[Sudan]] in the area of the Rivers [[Atbarah River|Atbara]] and [[Gash River|Gash]].<ref name="Fuller Stevens 2018"/><ref>{{cite book |last=Carney |first=Judith |title=In the Shadow of Slavery |publisher=University of California Press |year=2009 |isbn=978-0-5202-6996-5 |page=16}}</ref> It has been found at an archaeological site near [[Kassala]] in eastern Sudan, dating from 3500 to 3000 BC, and is associated with the neolithic [[Butana Group]] culture.<ref>{{cite journal |last1=Winchell |first1=Frank |last2=Stevens |first2=Chris J. |last3=Murphy |first3=Charlene |last4=Champion |first4=Louis |last5=Fuller |first5=Dorian Q. |title=Evidence for sorghum domestication in fourth millennium BC eastern Sudan: Spikelet morphology from ceramic impressions of the Butana Group |journal=Current Anthropology |volume=58 |issue=5 |year=2017 |pages=673-683 |url=https://discovery.ucl.ac.uk/id/eprint/1574602/7/Fuller_693898.pdf}}</ref> Sorghum bread from graves in [[Predynastic Egypt]], some 5,100 years ago, is displayed in the [[Museo Egizio|Egyptian Museum, Turin]], Italy.<ref name="Museo Egizio"/>
''[[Sitophilus zeamais]]'' (maize weevil) and ''[[Sitotroga cerealella]]'' (Angoumois grain moth) attack stored sorghum and maize.<ref name=insects/>


The first race to be domesticated was ''bicolor''; it had tight husks that had to be removed forcibly. Around 4,000 years ago<!--2000 BC-->, this spread to the Indian subcontinent; around 3,000 years ago it reached West Africa.<ref name="Fuller Stevens 2018"/> Four other races evolved through cultivation to have larger grains and to become free-threshing, making harvests easier and more productive. These were ''caudatum'' in the [[Sahel]]; ''durra'', most likely in India; ''guinea'' in West Africa (later reaching India), and from that race ''mageritiferum'' that gave rise to the varieties of Southern Africa.<ref name="Fuller Stevens 2018">{{cite book |last=Fuller |first=Dorian Q. |last2=Stevens |first2=Chris J. |title=Plants and People in the African Past |chapter=Sorghum Domestication and Diversification: A Current Archaeobotanical Perspective |publisher=Springer International Publishing |date=2018 |isbn=978-3-319-89838-4 |doi=10.1007/978-3-319-89839-1_19 |pages=427–452}}</ref>
Sorghum produces [[chitinase]]s as [[plant disease resistance|defensive compounds]] against [[fungal diseases of sorghum|fungal diseases]].<ref name = "Antifungal" /> [[Transgenesis]] of additional chitinases increases this crop's [[resistance to fungal diseases in sorghum|disease resistance]].<ref name = "Antifungal" >
{{ Cite journal
| language = English
| year = 2001
| volume = 49
| issue = 10
| publisher = [[American Chemical Society]] (ACS)
| pages = 4732–4742
| first9 = G. H.
| first8 = S.
| first7 = J.
| first6 = J.
| first5 = F. P.
| first4 = S.
| first3 = A.
| first2 = R. T.
| first1 = R. D.
| last9 = Liang
| last8 = Muthukrishnan
| last7 = Jayaraj
| last6 = Jeoung
| last5 = Bejosano
| last4 = Krishnaveni
| last3 = Chandrashekar
| last2 = Venkatesha
| last1 = Waniska
| title = Antifungal Proteins and Other Mechanisms in the Control of Sorghum Stalk Rot and Grain Mold
| doi = 10.1021/jf010007f
| journal = [[Journal of Agricultural and Food Chemistry]]
| pmid = 11600015
}}
</ref>


[[File:Domestication and races of Sorghum.svg|thumb|center|upright=2.5|Domestication and races of sorghum]]
===Harvest and processing===


=== Spread ===
Harvest is done mostly by hand in developing countries. The [[panicle]] containing the grains are cut from the stalk when appropriate moisture content of 16-20 % is reached. Seed maturity can be recognized by the appearance of a black spot at the connection between seed and plant.
<ref name="GRDC Grownotes"/>
Threshing can then be done either manually or mechanically. Before storing the seeds, they need to reach a moisture content of only 10%, as higher moisture content contributes to the growth of mould as well as to the germination of the seeds.<ref name="Sorghum. Post-harvest Operation">{{cite web |last1=Food and Agriculture Organization of the United States |title=Sorghum. Post-harvest Operations |url=https://www.fao.org/fileadmin/user_upload/inpho/docs/Post_Harvest_Compendium_-_SORGHUM.pdf |website=United Nations [[Food and Agriculture Organization]] (FAO)|access-date=12 November 2022}}</ref>


In the Middle Ages, the [[Arab Agricultural Revolution]] spread sorghum and other crops from Africa and Asia across the Arab world as far as [[Al-Andalus]] in Spain.<ref name="Watson 1974">{{cite journal |last=Watson |first=Andrew M. |year=1974 |title=The Arab Agricultural Revolution and Its Diffusion, 700–1100 |journal=The Journal of Economic History |volume=34 |issue=1 |pages=8–35 |doi=10.1017/S0022050700079602 |jstor=2116954|s2cid=154359726 }}</ref> Sorghum remained the staple food of the medieval kingdom of [[Alodia]] and most Sub-Saharan cultures prior to European colonialism.<ref>Welsby, Derek (2002). "The Economy", in ''The Medieval Kingdoms of Nubia. Pagans, Christians and Muslims Along the Middle Nile''. [[British Museum]]. {{ISBN|978-0-7141-1947-2}}.</ref>
==Uses==
[[File:Simple turkey tail brooms.png|thumb|'Turkey tail' style brooms|alt=Two 'turkey tail' style brooms]]
[[File:Sorghum grain boiled.jpg|thumb|Boiled]]
Sorghum is cultivated in many parts of the world today.<ref name=AGMRC>{{cite web|url=http://www.agmrc.org/commodities__products/grains__oilseeds/sorghum/sorghum-profile/|title=AGMRC ''Sorghum'' profile|author1=Jeri Stroade |author2=Michael Boland |author3=Mykel Taylor |name-list-style=amp }}</ref> The grain finds use as human food, and for making liquor, animal feed, or bio-based [[ethanol]]. Sorghum grain is [[gluten free]], high in [[resistant starch]],{{clarify|date=March 2023}} and has more abundant and diverse phenolic compounds compared to other major cereal crops<ref name="sciencedirect.com">{{Cite journal|last1=Awika|first1=Joseph M.|last2=Rooney|first2=Lloyd W.|date=2004-05-01|title=Sorghum phytochemicals and their potential impact on human health|url=http://www.sciencedirect.com/science/article/pii/S003194220400144X|journal=[[Phytochemistry (journal)|Phytochemistry]]|language=en|volume=65|issue=9|pages=1199–1221|doi=10.1016/j.phytochem.2004.04.001|pmid=15184005|bibcode=2004PChem..65.1199A |issn=0031-9422}}</ref><ref>{{Cite journal|last1=Rooney|first1=Lloyd|last2=Dykes|first2=Linda|date=2013-10-01|title=Utilization of African Grains in Nutritionally Unique Foods|journal=[[CFW Plexus]]|doi=10.1094/cplex-2013-1001-24b|issn=2168-118X|doi-access=free}}</ref>


Sweet sorghum was important to the [[sugar]] trade in the 19th century.<ref>{{cite book |last=Hyde |first=James F.C. |title=The Chinese Sugar-Cane: Its History, Mode of Culture, Manufacture of the Sugar, Etc. with Reports of Its Success in Different Portions of the United States, and Letters from Distinguished Men |publisher=J. P. Jewett |date=1857 |location=[[Boston]] |url=https://books.google.com/books?id=fA_tOyZnXyUC&q=sorghum+sugar+syrup+china}}</ref> The price of sugar was rising because of decreased production in the British [[West Indies]] and more demand for [[confectionery]] and [[fruit preserves]], and the United States was actively searching for a sugar plant that could be produced in northern states. The "Chinese sugar-cane", sweet sorghum, was viewed as a plant that would be productive in the West Indies.<ref>{{cite book |last=Hyde |first=James F.C. |title=The Chinese Sugar-Cane: Its History, Mode of Culture, Manufacture of the Sugar, Etc. with Reports of Its Success in Different Portions of the United States, and Letters from Distinguished Men |publisher=J. P. Jewett |date=1857 |location=[[Boston]] |url=https://books.google.com/books?id=fA_tOyZnXyUC&q=sorghum+sugar+syrup+china |page=11}}</ref>
===Culinary use===


== Nutrition ==
{{Nutritional value
| name=Sorghum
| kJ=1418
| protein=11.30 g
| fat=3.30 g
| carbs=74.63 g
| fiber=6.3 g}}


{{nutritional value | name=Sorghum grain
In many parts of Asia and Africa, sorghum grain is used to make flat breads that form the staple food of many cultures.<ref>{{cite book|title=Plant Taxonomy|author=O P Sharma|publisher=[[Tata McGraw-Hill]]|year=1993|isbn=978-0-07-460373-4|pages=439}}</ref><ref>{{cite book |author=[[National Research Council (United States)|National Research Council]] |title=Lost Crops of Africa: Volume I: Grains |url=http://books.nap.edu/openbook.php?record_id=2305 |access-date=2008-07-18 |date=1996-02-14 |publisher=[[National Academies Press]]|isbn=978-0-309-04990-0 |chapter=Sorghum |chapter-url=http://books.nap.edu/openbook.php?record_id=2305&page=127}}</ref> Popped grains are a popular snack in parts of Western India.<ref>{{cite journal |author1=Subramanian, V. |author2=Jambunathan, R. |date=1980 |title=Traditional methods of processing of sorghum (''Sorghum bicolor'') and pearl millet (''Pennisetum americanum'') grains in India |journal=[[Reports of the International Association of Cereal Chemistry]]|volume=10 |pages=115–118 |url=http://oar.icrisat.org/3476/1/RIACC_10_115-118_1980.pdf}}</ref>
| kJ=329
| water=12.4 g
| protein=10.6 g
| fat=3.46 g
| satfat= 0.61 g
| monofat=1.13 g
| polyfat=1.56 g
| carbs=72.1 g
| fiber=6.7 g
| sugars=2.53 g
| calcium_mg=13
| iron_mg=3.36
| magnesium_mg=165
| phosphorus_mg=289
| potassium_mg=363
| sodium_mg=2
| copper_mg=0.284
| selenium_ug=12.2
| zinc_mg=1.67
| manganese_mg=1.6
| vitC_mg=0
| thiamin_mg=0.332
| riboflavin_mg=0.096
| niacin_mg=3.69
| pantothenic_mg=0.367
| vitB6_mg=0.443
| folate_ug=20
| vitA_ug=0
| vitE_mg=0.5
| source_usda = 1
| note=[https://fdc.nal.usda.gov/fdc-app.html#/food-details/169716/nutrients Link to USDA Database entry]
}}


The grain is edible and nutritious. It can be eaten raw when young and milky, but has to be boiled or [[mill (grinding)|ground]] into [[flour]] when mature.<ref>{{Cite book |url=https://www.worldcat.org/oclc/277203364 |title=The Complete Guide to Edible Wild Plants |publisher=Skyhorse Publishing, United States Department of the Army|year=2009 |isbn=978-1-60239-692-0 |location=New York]|pages=94 |language=en-US |oclc=277203364}}</ref>
In [[India]], where it is commonly called ''jwaarie, jowar, jola'', or ''jondhalaa'', sorghum is one of the staple sources of nutrition in [[Rajasthan]], [[Punjab, India|Punjab]], [[Haryana]], [[Uttar Pradesh]], and the [[Deccan plateau]] states of [[Maharashtra]], [[Karnataka]], and [[Telangana]]. An Indian bread called ''[[bhakri]], jowar roti'', or ''[[jolada rotti]]'' is prepared from this grain.<ref name="Sen2004">{{cite book|author=Colleen Taylor Sen |title=Food Culture in India|url=https://books.google.com/books?id=YIyV_5wrplMC&pg=PA41|year=2004|publisher=[[Greenwood Publishing Group]]|isbn=978-0-313-32487-1|page=80}}</ref><ref name="AkhtarLearmonth1985">{{cite book|author1=Rais Akhtar|author2=Andrew Thomas Amos Learmonth |title=Geographical Aspects of Health and Disease in India|url=https://books.google.com/books?id=lm-T1sbNdPwC&pg=PA245|year=1985|publisher=[[Concept Publishing Company]]|page=251 |id=GGKEY:HH184Y8TYNS}}</ref>


Sorghum grain is 72% [[carbohydrate]]s including 7% dietary fiber, 11% protein, 3% [[fat]], and 12% water (table). In a reference amount of {{convert|100|g}}, sorghum grain supplies 79 [[calorie]]s and rich contents (20% or more of the [[Daily Value]], DV) of several B vitamins and dietary minerals (table).
In [[Tunisia]], where it is commonly called ''droô,'' a traditional [[porridge]] dish is prepared with ground sorghum powder, [[milk]], and [[sugar]]. The dish is a staple breakfast meal consumed in winter months.<ref>{{Cite web|url=http://www.wepostmag.com/sorgho-droo-collation-hivernale/|title=Le sorgho " Droô ", la collation hivernale|date=May 28, 2012|website=wepostmag|access-date=2020-04-24|archive-date=2021-05-20|archive-url=https://web.archive.org/web/20210520143347/http://www.wepostmag.com/sorgho-droo-collation-hivernale/|url-status=dead}}</ref>


In the early stages of plant growth, some sorghum species may contain levels of [[hydrogen cyanide]], [[hordenine]], and [[nitrate]]s lethal to grazing animals.<ref>{{cite web |title=Sorghum |url=http://agriculture.vic.gov.au/agriculture/livestock/beef/feeding-and-nutrition/sorghum |url-status=dead |archive-url=https://web.archive.org/web/20191002184304/http://agriculture.vic.gov.au/agriculture/livestock/beef/feeding-and-nutrition/sorghum |archive-date=2019-10-02 |access-date=2018-10-15 |publisher=Agriculture Victoria|location=Victoria, Australia}}</ref> Plants stressed by drought or heat can also contain toxic levels of cyanide and nitrates at later stages in growth.<ref>{{cite web |date=7 November 2018 |title=Cyanide (prussic acid) and nitrate in sorghum crops |url=https://www.business.qld.gov.au/industries/farms-fishing-forestry/agriculture/land-management/health-pests-weeds-diseases/livestock/cyanide-nitrate-sorghum |access-date=2021-05-13 |publisher=Queensland Government, Primary Industries and Fisheries}}</ref>
In [[Central America]], tortillas are sometimes made using sorghum. Although corn is the preferred grain for making tortillas, sorghum is widely used and is well accepted in [[Honduras]]. White sorghum is preferred for making tortillas.<ref name=":1">{{Cite web|url=http://www.fao.org/docrep/t0818e/T0818E0h.htm|title=Sorghum and millets in human nutrition|website=www.fao.orgUnited Nations [[Food and Agriculture Organization]] (FAO)|access-date=2017-04-05}}</ref>


==Use==
[[Sweet sorghum]] syrup is known as molasses in some parts of the United States, although it is not true [[molasses]].


''S. bicolor'' is widely used for food and animal fodder. It is also used to make [[alcoholic beverage]]s, and [[biofuel]]s such as [[ethanol]].<ref name="Britannica"/> It can be made into [[couscous]], porridge, or flatbreads such as Indian ''[[Jōḷada roṭṭi]]'' or tortillas; and it can be burst in hot oil to make a [[popcorn]], smaller than that of maize. Since it does not contain gluten, it can be used in [[gluten-free diet]]s.<ref name="Saner 2021">{{cite news |last1=Saner |first1=Emine |title=From porridge to popcorn: how to cook with the ancient grain sorghum |url=https://www.theguardian.com/food/2021/may/24/how-to-cook-with-ancient-grain-sorghum-porridge-popcorn |work=[[The Guardian]] |date=24 May 2021}}</ref>
In [[Southern Africa]]n countries, sorghum, along with milk, sugar and [[butter]], is used to make Maltabella, a variation of millet porridge.


In [[Nigeria]], the pulverized red leaf-sheaths of sorghum have been used to dye leather, while in [[Algeria]], sorghum has been used to dye wool.<ref name="Dye">{{cite journal |last=Dalziel |first=J.M. |title=African Leather Dyes |journal=Bulletin of Miscellaneous Information |volume=6 |date=1926 |issue=6 |publisher=[[Royal Botanic Gardens, Kew]]|page=230 |doi=10.2307/4118651 |jstor=4118651 }}</ref>
===Alcoholic beverage===


In South Africa, characteristically sour [[Kaffir beer]] is made from sorghum or millet. The process involves souring the [[Mashing|mashed grain]] with [[lactic acid bacteria]], followed by fermenting by the [[Wild yeast (wine)|wild yeasts]] that were on the grain.<ref name="Van Der Walt 1956">{{cite journal |last=Van Der Walt |first=J. P. |title=Kaffircorn malting and brewing studies. II.—Studies on the microbiology of Kaffir beer |journal=Journal of the Science of Food and Agriculture |volume=7 |issue=2 |date=1956 |issn=0022-5142 |doi=10.1002/jsfa.2740070203 |pages=105–113}}</ref>
In [[China]], sorghum is known as ''gaoliang'' (高粱), and is [[fermentation (food)|fermented]] and [[distilled]] to produce one form of clear spirits known as ''[[baijiu]]'' (白酒) of which the most famous is [[Maotai]] (or Moutai).
In [[Taiwan]], on the island called [[Kinmen]], plain sorghum is made into sorghum liquor. In several countries in Africa, including [[Zimbabwe]], [[Burundi]], [[Mali]], [[Burkina Faso]], [[Ghana]], and [[Nigeria]], sorghum of both the red and white varieties is used to make traditional opaque [[beer]]. Red sorghum imparts a pinkish-brown colour to the beer.{{cn|date=May 2024}}


In India, the panicle stalks are used as bristles for [[broom]]s.<ref>{{Citation |last1=Hariprasanna |first1=K. |title=Sorghum: Origin, Classification, Biology and Improvement |date=2015 |url=https://link.springer.com/10.1007/978-81-322-2422-8_1 |work=Sorghum Molecular Breeding |pages=3–20 |editor-last=Madhusudhana |editor-first=R. |place=New Delhi |publisher=Springer India |doi=10.1007/978-81-322-2422-8_1 |isbn=978-81-322-2421-1 |last2=Patil |first2=J. V. |editor2-last=Rajendrakumar |editor2-first=P. |editor3-last=Patil |editor3-first=J.V.}}</ref>
===Bio-based ethanol===


In countries including the US<!--and India, ...-->, the stalks of [[sweet sorghum]] varieties are crushed in a cane juicer to extract the sweet [[molasses]]-like juice. The juice is sold as syrup,<ref name="NPR1">{{cite news |last1=Rapuano |first1=Rina |title=Sorghum Travels From The South To The Mainstream |url=https://www.npr.org/2012/09/12/160946531/sorghum-travels-from-the-south-to-the-mainstream |website=NPR.org |date=12 September 2012 |language=en}}</ref><ref>Bitzer, Morris. Sweet Sorghum for Syrup. Publication. N.p.: U of Kentucky, 2002. Web. 22 May 2014. <http://www.uky.edu/Ag/CCD/introsheets/swsorghumintro.pdf></ref><ref>Curtin, Leo V. MOLASSES - GENERAL CONSIDERATIONS. Publication. Institute of Food and Agricultural Sciences and University of Florida, n.d. Web. 22 May 2014. <http://rcrec-ona.ifas.ufl.edu/pdf/publications/molasses-general-considerations..pdf {{Webarchive|url=https://web.archive.org/web/20180921180627/http://rcrec-ona.ifas.ufl.edu/pdf/publications/molasses-general-considerations..pdf |date=2018-09-21 }}</ref> and used as a [[feedstock]] to make biofuel.<ref>{{cite web|url=http://www.agribusinessweek.com/sweet-sorghum-a-new-smart-biofuel-crop/|title=Sweet Sorghum : A New "Smart Biofuel Crop|publisher=agribusinessweek.com|date=30 June 2008|url-status=dead|archive-url=https://web.archive.org/web/20150527004827/http://www.agribusinessweek.com/sweet-sorghum-a-new-s.|archive-date=2015-05-27}}</ref>
In [[Australia]], [[South America]], and the [[United States]], sorghum grain is used primarily for livestock feed and in a growing number of ethanol plants.<ref>{{Cite web|url=https://www.sorghumcheckoff.com/https://www.sorghumcheckoff.com/|title=United Sorghum Checkoff Program &#124; Investing in Sorghum Profitability|website=[[United Sorghum Checkoff]]}}{{Dead link|date=March 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
In some countries, sweet sorghum stalks are used for producing biofuel by squeezing the juice and then fermenting it into [[ethanol]].<ref>{{cite web|url=http://www.agribusinessweek.com/sweet-sorghum-a-new-smart-biofuel-crop/|title=Sweet Sorghum : A New "Smart Biofuel Crop|publisher=agribusinessweek.com|date=30 June 2008|url-status=dead|archive-url=https://web.archive.org/web/20150527004827/http://www.agribusinessweek.com/sweet-sorghum-a-new-s.|archive-date=2015-05-27}}</ref> [[Texas A&M University]] in the United States is currently running trials to find the best varieties for ethanol production from sorghum leaves and stalks in the USA.<ref>{{cite web|url=http://agnewsarchive.tamu.edu/dailynews/stories/FUEL/Oct0107a.htm|title=Ceres and Texas A&M to Develop and Market High-Biomass Sorghum for Biofuels|website=[[Texas A&M University System Agriculture Program]]|date=1 October 2007|url-status=dead|archive-url=https://web.archive.org/web/20080724231547/http://agnewsarchive.tamu.edu/dailynews/stories/FUEL/Oct0107a.htm|archive-date=24 July 2008}}</ref>


<gallery class=center mode=nolines widths=180 heights=180>
===Agricultural===
File:Sorghum food in locally made plate.jpg|Sorghum dough in a [[gourd]] bowl of the [[Didinga people]] of South Sudan
File:ಜೋಳದ ರೊಟ್ಟಿ Jōḷada roṭṭi.jpg|''[[Jōḷada roṭṭi]]'' flatbread, [[Karnataka]], India
File:Popcorn and pop sorghum.jpg|Maize [[popcorn]] and popped sorghum
File:Sorghum forage (kadba).jpg|Sorghum [[forage]], [[Maharashtra]], India
File:Sorghum beer or Omalovu giilya.jpg|[[Kaffir beer|Sorghum beer]], ''Omalovu giilya'', fermenting in gourds, Namibia
File:Simple turkey tail brooms (cropped).png|Brooms made of panicle stalks
File:Sorghum cane juicer.jpg|A horse-driven sorghum cane juicer being used to extract the sweet juice in [[North Carolina]]
File:Sorghum jar.jpg|A jar of [[sweet sorghum]] syrup
</gallery>


== Cultivation ==
It is used in feed and pasturage for livestock. Its use is limited, however, because the starch and protein in sorghum is more difficult for animals to digest than the starches and protein in corn. One study on cattle showed that steam-flaked sorghum was preferable to dry-rolled sorghum because it improved daily weight gain.<ref name=AGMRC/> In hogs, sorghum has been shown to be a more efficient feed choice than corn when both grains were processed in the same way.<ref name=AGMRC/>


{{further|Commercial sorghum}}
The introduction of improved varieties, along with improved management practices, has helped to increase sorghum productivity. In India, productivity increases are thought to have freed up six million hectares of land. ICRISAT (The [[International Crops Research Institute for the Semi-Arid Tropics]]) in collaboration with partners produces improved varieties of crops including sorghum. Some 194 improved cultivars of sorghum from the institute have been released.<ref>[http://resourcespace.icrisat.ac.in/filestore/1/0/3/7_7f0990ec0622d50/1037_94e3244b87cb47b.pdf ''Sorghum, a crop of substance''] {{webarchive|url=https://web.archive.org/web/20160120043052/http://resourcespace.icrisat.ac.in/filestore/1/0/3/7_7f0990ec0622d50/1037_94e3244b87cb47b.pdf |date=2016-01-20 }}. ICRISAT (The [[International Crops Research Institute for the Semi-Arid Tropics]]). Downloaded 16 March 2014.</ref>


=== Agronomy ===
===Sorghum as an alternative to maize/corn===
Sorghum can be grown as an alternative to [[maize]] (corn). For example, in a [[crop rotation]], maize can be replaced by sorghum.<ref>{{cite web |last1=NHAG |title=Grain Sorghum |url=https://agriculture.newholland.com/apac/en-ph/equipment/agronomy/production-guidelines/grain-sorghum |website=Agriculture Newholland |language=en}}</ref> Sorghum has 96% of the nutritional value of maize. In addition, it has more [[protein]] than maize. However, it is important to note that protein concentrations can vary and therefore need to be checked at harvest. Furthermore, sorghum is less digestible than maize because of its profile of [[Amino acid|amino acids]].<ref name = "Papanikou">{{cite web |last1=Papanikou |first1=Efstratia |title=Feeding sorghum as an alternative to corn |url=https://www.feedstrategy.com/blog/feeding-sorghum-as-an-alternative-to-corn/ |website=Feed Strategy |access-date= 2022-11-13}}</ref> It also contains some bitter substances which can make it not very palatable.<ref name="Papanikou" /> Despite these disadvantages, Sorghum is a suitable solution for warmer regions where water is limited. Another advantage is that Sorghum has comparable yield to corn.<ref name = "Getachew">
{{ Cite journal |
language=en|
year=2017|
publisher=[[Taylor & Francis]]|
issue=5–6|
volume=36|
first3=William|
first2=George|
first1=Sara|
first4=Muthukumar|
last4=Bagavathiannan|
last3=Rooney|
last2=Hodnett|
last1=Ohadi|
pages=367–385|
journal=[[Critical Reviews in Plant Sciences]]|
issn=0735-2689 |
eissn=1549-7836|
title=Gene Flow and its Consequences in ''Sorghum'' spp.|
doi=10.1080/07352689.2018.1446813|
s2cid=90489310|doi-access=free}}


Most varieties of sorghum are [[xerophyte|drought]]- and heat-tolerant, [[nitrogen cycle|nitrogen]]-efficient,<ref>{{cite news |last=Mulhollem |first=Jeff |title=Flavonoids' presence in sorghum roots may lead to frost-resistant crop |date=10 August 2020 |publisher=Pennsylvania State University |quote=sorghum is a crop that can respond to climate change because of its high water- and nitrogen-use efficiency|url=https://news.psu.edu/story/627935/2020/08/10/research/flavonoids-presence-sorghum-roots-may-lead-frost-resistant-crop}}</ref> and are grown particularly in [[arid]] and [[semi-arid]] regions where the grain is one of the [[staple food|staples]] for poor and rural people. These varieties provide [[forage]] in many tropical regions. ''S.&nbsp;bicolor'' is a [[food crop]] in Africa, [[Central America]], and [[South Asia]], and is the fifth most common cereal crop grown in the world.<ref>{{cite news |last=Danovich |first=Tove |title=Move over, quinoa: sorghum is the new 'wonder grain' |newspaper=[[The Guardian]] |date=15 December 2015 |url=https://www.theguardian.com/lifeandstyle/2015/dec/15/sorghum-wonder-grain-american-food-quinoa |access-date=31 July 2018}}</ref><ref>{{cite book |title=Soils, Plant Growth and Crop Production |volume=II |chapter=Growth and Production of Sorghum and Millets |editor=Willy H. Verheye |date=2010 |publisher=EOLSS Publishers |isbn=978-1-84826-368-0 |url=https://www.eolss.net/ebooklib/bookinfo/soils-plant-growth-crop-production.aspx}}</ref> It is most often grown without application of fertilizers or other inputs by small-holder farmers in developing countries.<ref name=fao1>{{cite web |title=Sorghum and millet in human nutrition |publisher=Food and Agriculture Organization of the United Nations |year=1995 |url=http://www.fao.org/docrep/T0818E/T0818E00.htm}}</ref>
This review cites this other review which is in a journal normally regarded as a [[predatory journal]]:


Sorghum grows in a wide range of temperatures. It can tolerate high altitude and toxic soils, and can recover growth after some drought.<ref name="FAO"/> Optimum growth temperature range is {{ Convert |12-34|C}}, and the growing season lasts for ~ 115-140 days. <ref name="GRDC Grownotes">{{cite web|title=Sorghum - Section 4: Plant Growth and Physiology|url=https://grdc.com.au/resources-and-publications/grownotes/crop-agronomy/sorghumgrownotes/GrowNote-Sorghum-North-04-Physiology.pdf|website=[[Grain Research & Development Corporation]]|access-date=4 December 2022|archive-date=11 November 2022|archive-url=https://web.archive.org/web/20221111230932/https://grdc.com.au/resources-and-publications/grownotes/crop-agronomy/sorghumgrownotes/GrowNote-Sorghum-North-04-Physiology.pdf|url-status=dead}}</ref> It can grow on a wide range of soils, such as heavy clay to sandy soils with the pH tolerance ranging from 5.0 to 8.5.<ref name="Smith">{{Cite book|url=https://books.google.com/books?id=b7vxU44v794C&q=sorghum+verticilliform&pg=PA91|title=Sorghum: Origin, History, Technology, and Production|first1=C. Wayne|last1=Smith|first2=Richard A.|last2=Frederiksen|date=December 25, 2000|publisher=John Wiley & Sons|isbn=9780471242376|via=Google Books}}</ref> It requires an arable field that has been left fallow for at least two years or where [[crop rotation]] with legumes has taken place in the previous year.<ref name="Sorghum Handbook">{{cite book |last1=Ajeigbe |first1=Hakeem A. |title=Handbook on improved agronomic practices of sorghum production in north east Nigeria |date=2020 |publisher=[[ICRISAT]]|location=[[Patancheru]]}}</ref> Diversified 2- or 4-year crop rotation can improve sorghum yield, additionally making it more resilient to inconsistent growth conditions.<ref>{{cite journal |last1=Sindelar |first1=Aaron J. |last2=Schmer |first2=Marty R. |last3=Jin |first3=Virginia L. |last4=Wienhold |first4=Brian J. |last5=Varvel |first5=Gary E. |title=Crop Rotation Affects Corn, Grain Sorghum, and Soybean Yields and Nitrogen Recovery |journal=[[Agronomy Journal]]|date=2016 |volume=108 |issue=4 |pages=1592–1602|doi=10.2134/agronj2016.01.0005 }}</ref> In terms of nutrient requirements, sorghum is comparable to other cereal grain crops with nitrogen, phosphorus, and potassium required for growth.<ref name="Rooney">{{cite journal |last1=Rooney |first1=W.L. |title=Sorghum |journal=[[Reference Module in Food Science]]|date=2016|doi=10.1016/B978-0-08-100596-5.02986-3 |isbn=9780081005965 }}</ref>
</ref>


<gallery class=center mode=nolines widths=180 heights=180>
===Other uses===
File:Sorghum harvest at the shore of Lake Hayq Ethiopia.jpg|Sorghum harvest at the shore of [[Lake Hayq]], Ethiopia, 2012
It is also used for making a traditional corn [[broom]].<ref>{{cite web | title=How to make a broom | url=http://www.motherearthnews.com/Do-It-Yourself/How-To-Make-A-Broom.aspx | publisher=[[Ogden Publications, Inc]]|website=[[Mother Earth News]]| access-date=2010-03-16}}</ref> The reclaimed stalks of the sorghum plant are used to make a decorative [[Millwork (building material)|millwork]] material marketed as Kirei board.
File:Sorghum Harvest.jpg|Harvesting sorghum in Oklahoma, USA, with a combine harvester
File:Sun drying Sorghum in Rhino Camp.jpg|Drying sorghum in the open air, Uganda, 2020
File:Women fanning Sorghum seeds.png|Women drying sorghum seeds by tossing them in trays, 2022
</gallery>


==As a weed==
=== Pests and diseases ===
Weedy races of ''S. bicolor'' [[sensu lato]], especially [[Sorghum × drummondii|''Sorghum'' × ''drummondii'']],<ref>{{cite journal |last1=Kanatas |first1=Panagiotis |last2=Gazoulis |first2=Ioannis |last3=Zannopoulos |first3=Stavros |last4=Tataridas |first4=Alexandros |last5=Tsekoura |first5=Anastasia |last6=Antonopoulos |first6=Nikolaos |last7=Travlos |first7=Ilias |title=Shattercane (''Sorghum bicolor'' (L.) Moench Subsp. ''Drummondii'') and Weedy Sunflower (''Helianthus annuus'' L.)—Crop Wild Relatives (CWRs) as Weeds in Agriculture |journal=[[Diversity (journal)|Diversity]]|date=25 September 2021 |volume=13 |issue=10 |pages=463 |doi=10.3390/d13100463|doi-access=free }}</ref> are known as shattercane.<ref name="Mizzou-WeedID">{{cite web | title=Shattercane | website=[[Mizzou WeedID]] // Weed ID Guide // University of Missouri | url=http://weedid.missouri.edu/weedinfo.cfm?weed_id=315 | access-date=2021-07-08}}</ref>


{{further|List of sorghum diseases}}
==Research==


Insect damage is a major threat to sorghum plants. Over 150 species damage crop plants at different stages of development, resulting in significant biomass loss.<ref>{{cite journal |last1=Guo |first1=Chunshan |last2=Cui |first2=Wei |last3=Feng |first3=Xue |last4=Zhao |first4=Jianzhou |last5=Lu |first5=Guihua |title=Sorghum insect problems and management |journal=[[Journal of Integrative Plant Biology]]|date=2011 |volume=53 |issue=3 |pages=178–192 |doi=10.1111/J.1744-7909.2010.01019.X|pmid=21205185 }}</ref> Stored sorghum grain is attacked by other insect pests such as the [[lesser grain borer]] beetle.<ref name="Edde 2012">{{cite journal |last=Edde |first=Peter A. |title=A review of the biology and control of ''Rhyzopertha dominica'' (F.) the lesser grain borer |journal=[[Journal of Stored Products Research]] |publisher=[[Elsevier]] |volume=48 |number=1 |year=2012 |issn=0022-474X |doi=10.1016/j.jspr.2011.08.007 |pages=1–18 |s2cid=84377289}}</ref>
Research has been conducted to develop a genetic cross that will make the plant more tolerant to colder temperatures and to unravel the drought tolerance mechanisms, since it is native to tropical climates.<ref>{{cite journal|url=http://oklahomafarmreport.com/wire/news/2011/02/01538_Sorghum_Research_Showing_Promise_175252.php|journal=[[Oklahoma Farm Report]]|title=Sorghum Research Showing Promise|date=23 February 2011}}</ref> <ref name = "Ogbaga">{{cite journal|last1=Ogbaga|first1=Chukwuma C.|last2=Stepien|first2=Piotr|last3=Johnson|first3=Giles N.|title=Sorghum (''Sorghum bicolor'') varieties adopt strongly contrasting strategies in response to drought|journal=[[Physiologia Plantarum]]|date=October 2014|volume=152|issue=2|pages=389–401|doi=10.1111/ppl.12196|pmid=24666264}}</ref><ref>{{Cite journal|last1=Ochieng|first1=Grace|last2=Ngugi|first2=Kahiu|last3=Wamalwa|first3=Lydia N.|last4=Manyasa|first4=Eric|last5=Muchira|first5=Nicoleta|last6=Nyamongo|first6=Desterio|last7=Odeny|first7=Damaris A.|date=2021|title=Novel sources of drought tolerance from landraces and wild sorghum relatives|url=https://onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20300|journal=[[Crop Science]]|language=en|volume=61|issue=1|pages=104–118|doi=10.1002/csc2.20300|s2cid=225470264|issn=1435-0653|doi-access=free}}</ref><ref>{{cite journal|journal=[[Frontiers in Plant Science]]|title= Harnessing Sorghum Landraces to Breed High-Yielding, Grain Mold-Tolerant Cultivars With High Protein for Drought-Prone Environments|date= 30 June 2021 |doi=10.3389/fpls.2021.659874|doi-access= free|last1= Nagesh Kumar|first1= Mallela Venkata|last2= Ramya|first2= Vittal|last3= Govindaraj|first3= Mahalingam|last4= Sameer Kumar|first4= Chanda Venkata|last5= Maheshwaramma|first5= Setaboyine|last6= Gokenpally|first6= Seshu|last7= Prabhakar|first7= Mathyam|last8= Krishna|first8= Hariprasanna|last9= Sridhar|first9= Mulinti|last10= Venkata Ramana|first10= Maparla|last11= Avil Kumar|first11= Kodari|last12= Jagadeeshwar|first12= Rumandla|volume= 12|page= 659874|pmid= 34276722|pmc= 8279770}}</ref>
Sorghum is a host of the parasitic plant ''[[Striga hermonthica]]'', purple witchweed; it can seriously reduce production.<ref>{{cite journal |author1=Yoshida, Satoko |author2=Maruyama, Shinichiro |author3=Nozaki, Hisayoshi |author4=Shirasu, Ken |date=28 May 2010 |journal=[[Science (journal)|Science]]|volume=328 |pages=1128 |doi=10.1126/science.1187145 |issue=5982 |pmid=20508124 |title=Horizontal Gene Transfer by the Parasitic Plant ''Stiga hermanthica'' |bibcode= 2010Sci...328.1128Y |s2cid=39376164 }}</ref>
Sorghum is subject to a variety of [[plant pathogen]]s. The fungus ''[[Colletotrichum sublineolum]]'' causes [[anthracnose]].<ref name="Ero Hirpa Seid 2018">{{cite report |last=Ero |first=T. |last2=Hirpa |first2=D. |last3=Seid |first3=A. |title=Anthracnose of sorghum-Ethiopia: Colletotrichum sublineolum (C. graminicola); yemashila michi |publisher=Plantwiseplus Knowledge Bank |date=2018 |doi=10.1079/pwkb.20157800477 |series=Pest Management Decision Guides |s2cid=253929998 |doi-access=free}}</ref>
The toxic [[ergot]] fungus parasitises the grain, risking harm to humans and livestock.<ref>{{cite journal |last1=Bandyopadhyay |first1=Ranajit |last2=Frederickson |first2=Debra E. |last3=McLaren |first3=Neal W. |last4=Odvody |first4=Gary N. |last5=Ryley |first5=Malcolm J. |title=Ergot: A New Disease Threat to Sorghum in the Americas and Australia |journal=Plant Disease |date=April 1998 |volume=82 |issue=4 |pages=356–367 |doi=10.1094/PDIS.1998.82.4.356 |pmid=30856881 |doi-access=free }}</ref>
Sorghum produces [[chitinase]]s as [[plant disease resistance|defensive compounds]] against [[fungal diseases of sorghum|fungal diseases]]. [[Transgenesis]] of additional chitinases increases the crop's [[resistance to fungal diseases in sorghum|disease resistance]].<ref name="Waniska Venkatesha Chandrashekar Krishnaveni 2001">{{cite journal |last=Waniska |first=R. D. |last2=Venkatesha |first2=R. T. |last3=Chandrashekar |first3=A. |last4=Krishnaveni |first4=S. |last5=Bejosano |first5=F. P. |last6=Jeoung |first6=J. |last7=Jayaraj |first7=J. |last8=Muthukrishnan |first8=S. |last9=Liang |first9=G. H. |title=Antifungal Proteins and Other Mechanisms in the Control of Sorghum Stalk Rot and Grain Mold |journal=Journal of Agricultural and Food Chemistry |volume=49 |issue=10 |date=2001-10-01 |issn=0021-8561 |doi=10.1021/jf010007f |pages=4732–4742}}</ref>


<gallery class=center mode=nolines widths=180 heights=180>
Sorghum silage can be used as a replacement for [[maize]] silage in the diet for [[dairy cattle]].<ref name="Brouk">{{cite book|url=http://agrilife.org/amarillo/files/2010/11/dairy_handbookFINAL.pdf|title=Sorghum in Dairy Cattle Production Feeding Guide|author1=Micheal J. Brouk|author2=Brent Bean|name-list-style=amp|date=2010|access-date=2019-02-28|archive-date=2021-08-20|archive-url=https://web.archive.org/web/20210820162628/http://agrilife.org/amarillo/files/2010/11/dairy_handbookFINAL.pdf|url-status=dead}}</ref> Sorghum has higher nutritional value than maize when feeding dairy cattle, and correct processing is essential in harvesting the grain's maximum nutrition. Steam-flaked sorghum leads to higher milk production than dry-rolling of cattle feed.<ref name="Brouk" />
File:CSIRO ScienceImage 10792 Rhyzopertha dominica Lesser Grain Borer.jpg|The [[lesser grain borer]] is a serious pest of sorghum.
File:Acervuli of Colletotrichum sublineolum on Sweet sorghum.jpg|Acervuli of ''[[Colletotrichum sublineolum]]'', the cause of [[anthracnose]], on sweet sorghum
File:Anthracnose on Sweet sorghum.jpg|Sorghum leaves showing anthracnose damage
</gallery>


{{anchor|Genetics|Genomics}}
Sorghum is a potential food source to meet increasing global food demand, as it is resistant to drought- and heat-related stress. The genetic diversity between subspecies of sorghum gives it good resistance to pests and pathogens. It is highly efficient in converting solar energy to chemical energy, and in use of water.<ref name=":0">{{Cite news|url=http://hudsonalpha.org/hudsonalpha-and-collaborators-expand-major-research-program-to-benefit-farmers-in-the-developing-world|title=HudsonAlpha and collaborators expand sorghum research program - HudsonAlpha Institute for Biotechnology|date=2017-01-25|work=[[HudsonAlpha Institute for Biotechnology]]|access-date=2017-03-02|language=en-US}}</ref> Sorghum research initiatives have been pursued at [[Purdue University]],<ref>{{Cite web|url=http://www.purdue.edu/newsroom/releases/2015/Q2/purdue-leading-research-using-advanced-technologies-to-better-grow-sorghum-as-biofuel.html |title=Purdue leading research using advanced technologies to better grow sorghum as biofuel|website=[[Purdue University]] |author=Purdue Agricultural Communications |access-date=2017-03-02}}</ref> HudsonAlpha Institute for Biotechnology,<ref name=":0" /> [[Danforth Plant Science Center]],<ref name=":0" /> the [[University of Nebraska–Lincoln|University of Nebraska]],<ref>{{Cite web|url=http://agronomy.unl.edu/sweetsorghum|title=Sweet Sorghum Research|website=Department of Agronomy and Horticulture {{!}} [[University of Nebraska–Lincoln]]|language=en|access-date=2017-03-02}}</ref> and the [[University of Queensland]].<ref>{{Cite web|url=https://aussorgm.org.au/about/pre-breeding/|title=Our sorghum pre-breeding program|website=[[OZ Sorghum]]|language=en-AU|access-date=2018-08-10}}</ref> The [[University of Queensland]] is involved with pre-breeding activities using crop wild relatives as donors along with popular varieties as recipients to make sorghum more resistant to biotic stresses.<ref>{{Cite journal|last1=Mace|first1=Emma S.|last2=Cruickshank|first2=Alan W.|last3=Tao|first3=Yongfu|last4=Hunt|first4=Colleen H.|last5=Jordan|first5=David R.|date=2021|title=A global resource for exploring and exploiting genetic variation in sorghum crop wild relatives|url=https://onlinelibrary.wiley.com/doi/abs/10.1002/csc2.20332|journal=[[Crop Science]]|language=en|volume=61|issue=1|pages=150–162|doi=10.1002/csc2.20332|s2cid=225238624|issn=1435-0653}}</ref>

=== Genetics and genomics ===


Another research application of sorghum is as a biofuel. Sweet sorghum has a high sugar content in its stalk, which can be turned into ethanol. The biomass can be burned and turned into charcoal, syn-gas, and bio-oil.


===Genome===
The genome of ''S. bicolor'' was sequenced between 2005 and 2007.<ref name="nature-genome">{{Cite journal |pmid= 19189423 |issn= 0028-0836 |volume= 457 |issue= 7229 |pages= 551–556 |last= Paterson |first= Andrew H. |author2= John E. Bowers |author3=Remy Bruggmann |author4=Inna Dubchak |author5=Jane Grimwood |author6=Heidrun Gundlach |author7=Georg Haberer |author8=Uffe Hellsten |author9=Therese Mitros |author10=Alexander Poliakov |author11=Jeremy Schmutz |author12=Manuel Spannagl |author13=Haibao Tang |author14=Xiyin Wang |author15=Thomas Wicker |author16=Arvind K. Bharti |author17=Jarrod Chapman |author18=F. Alex Feltus |author19=Udo Gowik |author20=Igor V. Grigoriev |author21=Eric Lyons |author22=Christopher A. Maher |author23=Mihaela Martis |author24=Apurva Narechania |author25=Robert P. Otillar |author26=Bryan W. Penning |author27=Asaf A. Salamov |author28=Yu Wang |author29=Lifang Zhang |author30=Nicholas C. Carpita |author31=Michael Freeling |author32=Alan R. Gingle |author33=C. Thomas Hash |author34=Beat Keller |author35=Patricia Klein |author36=Stephen Kresovich |author37=Maureen C. McCann |author38=Ray Ming |author39=Daniel G. Peterson |author40=Mehboob-ur-Rahman |author41=Doreen Ware |author42=Peter Westhoff |author43=Klaus F. X. Mayer |author44=Joachim Messing |author45=Daniel S. Rokhsar |display-authors= 3 |title= The ''Sorghum bicolor'' genome and the diversification of grasses |journal=[[Nature (journal)|Nature]]|date= 2009-01-29 |bibcode= 2009Natur.457..551P |doi= 10.1038/nature07723 |doi-access=free }}</ref><ref>{{Cite web|url=https://phytozome.jgi.doe.gov/pz/portal.html#!info?alias=Org_Sbicolor|title=Phytozome|website=US DOE JGI [[Phytozome]]}}</ref> It is generally considered diploid and contains 20 chromosomes,<ref>{{Cite journal|last1=Price|first1=H. J.|last2=Dillon|first2=S. L. |last3=Hodnett|first3=G. |last4=Rooney|first4=W. L. |last5=Ross|first5=L. |last6=Johnston|first6=J. S. |date=2005|title=Genome evolution in the genus ''Sorghum'' (Poaceae)|journal=[[Annals of Botany]]|language=en|volume=95|issue=1|pages=219–227|doi=10.1093/aob/mci015|pmid=15596469|pmc=4246720}}</ref> however, there is evidence to suggest a tetraploid origin for ''S. bicolor''.<ref>{{Cite journal|last1=Gomez|first1=M. I.|last2=Islam-Faridi|first2=M. N. |last3=Zwick|first3=M. S. |last4=Czeschin Jr|first4=D. G. |last5=Hart|first5=G. E. |last6=Wing|first6=R. A. |last7=Stelly|first7=D. M. |last8=Price|first8=H. J. |date=1998|title=Brief communication. Tetraploid nature of ''Sorghum bicolor'' (L.) Moench|journal=[[Journal of Heredity]]|language=en|volume=89|issue=2|pages=188–190|doi=10.1093/jhered/89.2.188|url=https://academic.oup.com/jhered/article/89/2/188/2186640?login=true|doi-access=free}}</ref> The genome size is approximately 800 Mbp.<ref>{{Cite journal|last1=McCormick|first1=Ryan F.|last2=Truong|first2=Sandra K.|last3=Sreedasyam|first3=Avinash|last4=Jenkins|first4=Jerry|last5=Shu|first5=Shengqiang|last6=Sims|first6=David|last7=Kennedy|first7=Megan|last8=Amirebrahimi|first8=Mojgan|last9=Weers|first9=Brock D.|last10=McKinley|first10=Brian|last11=Mattison|first11=Ashley|date=2018|title=The ''Sorghum bicolor'' reference genome: improved assembly, gene annotations, a transcriptome atlas, and signatures of genome organization|journal=[[The Plant Journal]]|language=en|volume=93|issue=2|pages=338–354|doi=10.1111/tpj.13781|pmid=29161754|issn=1365-313X|doi-access=free}}</ref>
The genome of ''S. bicolor'' was sequenced between 2005 and 2007.<ref name="nature-genome">{{Cite journal |pmid= 19189423 |issn= 0028-0836 |volume= 457 |issue= 7229 |pages= 551–556 |last= Paterson |first= Andrew H. |author2= John E. Bowers |author3=Remy Bruggmann |author4=Inna Dubchak |author5=Jane Grimwood |author6=Heidrun Gundlach |author7=Georg Haberer |author8=Uffe Hellsten |author9=Therese Mitros |author10=Alexander Poliakov |author11=Jeremy Schmutz |author12=Manuel Spannagl |author13=Haibao Tang |author14=Xiyin Wang |author15=Thomas Wicker |author16=Arvind K. Bharti |author17=Jarrod Chapman |author18=F. Alex Feltus |author19=Udo Gowik |author20=Igor V. Grigoriev |author21=Eric Lyons |author22=Christopher A. Maher |author23=Mihaela Martis |author24=Apurva Narechania |author25=Robert P. Otillar |author26=Bryan W. Penning |author27=Asaf A. Salamov |author28=Yu Wang |author29=Lifang Zhang |author30=Nicholas C. Carpita |author31=Michael Freeling |author32=Alan R. Gingle |author33=C. Thomas Hash |author34=Beat Keller |author35=Patricia Klein |author36=Stephen Kresovich |author37=Maureen C. McCann |author38=Ray Ming |author39=Daniel G. Peterson |author40=Mehboob-ur-Rahman |author41=Doreen Ware |author42=Peter Westhoff |author43=Klaus F. X. Mayer |author44=Joachim Messing |author45=Daniel S. Rokhsar |display-authors= 3 |title= The ''Sorghum bicolor'' genome and the diversification of grasses |journal=[[Nature (journal)|Nature]]|date= 2009-01-29 |bibcode= 2009Natur.457..551P |doi= 10.1038/nature07723 |doi-access=free }}</ref><ref>{{Cite web|url=https://phytozome.jgi.doe.gov/pz/portal.html#!info?alias=Org_Sbicolor|title=Phytozome|website=US DOE JGI [[Phytozome]]}}</ref> It is generally considered diploid and contains 20 chromosomes,<ref>{{Cite journal|last1=Price|first1=H. J.|last2=Dillon|first2=S. L. |last3=Hodnett|first3=G. |last4=Rooney|first4=W. L. |last5=Ross|first5=L. |last6=Johnston|first6=J. S. |date=2005|title=Genome evolution in the genus ''Sorghum'' (Poaceae)|journal=[[Annals of Botany]]|language=en|volume=95|issue=1|pages=219–227|doi=10.1093/aob/mci015|pmid=15596469|pmc=4246720}}</ref> however, there is evidence to suggest a tetraploid origin for ''S. bicolor''.<ref>{{Cite journal|last1=Gomez|first1=M. I.|last2=Islam-Faridi|first2=M. N. |last3=Zwick|first3=M. S. |last4=Czeschin Jr|first4=D. G. |last5=Hart|first5=G. E. |last6=Wing|first6=R. A. |last7=Stelly|first7=D. M. |last8=Price|first8=H. J. |date=1998|title=Brief communication. Tetraploid nature of ''Sorghum bicolor'' (L.) Moench|journal=[[Journal of Heredity]]|language=en|volume=89|issue=2|pages=188–190|doi=10.1093/jhered/89.2.188|url=https://academic.oup.com/jhered/article/89/2/188/2186640?login=true|doi-access=free}}</ref> The genome size is approximately 800 Mbp.<ref>{{Cite journal|last1=McCormick|first1=Ryan F.|last2=Truong|first2=Sandra K.|last3=Sreedasyam|first3=Avinash|last4=Jenkins|first4=Jerry|last5=Shu|first5=Shengqiang|last6=Sims|first6=David|last7=Kennedy|first7=Megan|last8=Amirebrahimi|first8=Mojgan|last9=Weers|first9=Brock D.|last10=McKinley|first10=Brian|last11=Mattison|first11=Ashley|date=2018|title=The ''Sorghum bicolor'' reference genome: improved assembly, gene annotations, a transcriptome atlas, and signatures of genome organization|journal=[[The Plant Journal]]|language=en|volume=93|issue=2|pages=338–354|doi=10.1111/tpj.13781|pmid=29161754|issn=1365-313X|doi-access=free}}</ref>


Paterson ''et al.'', 2009 provides a [[genome assembly]] of 739 [[megabase]].<ref name = "Designing" /> The most commonly used genome database is {{ Visible anchor |SorGSD}} maintained by Luo ''et al.'', 2016.<ref name = "Designing" /> An [[gene expression atlas|expression atlas]] is available from Shakoor ''et al.'', 2014 with 27,577 [[gene]]s.<ref name = "Designing" /> {{As of|2021}} no [[pan-genome]] is available.<ref name = "Designing" /> For [[molecular breeding]] (or other purposes) an [[SNP array]] has been created by Bekele ''et al.'', 2013, a 3K SNP Infinium from [[Illumina, Inc.]]<ref name = "Designing" >
Paterson ''et al.'', 2009 provides a [[genome assembly]] of 739 [[megabase]].<ref name = "Designing" /> The most commonly used genome database is {{ Visible anchor |SorGSD}} maintained by Luo ''et al.'', 2016.<ref name = "Designing" /> An [[gene expression atlas|expression atlas]] is available from Shakoor ''et al.'', 2014 with 27,577 [[gene]]s.<ref name = "Designing" /> {{As of|2021}} no [[pan-genome]] is available.<ref name = "Designing" /> For [[molecular breeding]] (or other purposes) an [[SNP array]] has been created by Bekele ''et al.'', 2013, a 3K SNP Infinium from [[Illumina, Inc.]]<ref name="Varshney Bohra Yu Graner 2021">{{cite journal | last=Varshney | first=Rajeev K. | last2=Bohra | first2=Abhishek | last3=Yu | first3=Jianming | last4=Graner | first4=Andreas | last5=Zhang | first5=Qifa | last6=Sorrells | first6=Mark E. | title=Designing Future Crops: Genomics-Assisted Breeding Comes of Age | journal=Trends in Plant Science | volume=26 | issue=6 | date=2021 | doi=10.1016/j.tplants.2021.03.010 | pages=631–649}}</ref>

{{ Cite journal |
[[Agrobacterium transformation |''Agrobacterium'' transformation]] can be used on sorghum, as shown in a 2018 report of such a transformation system.<ref name="Guo Ye Gao Xu 2019">{{cite journal |last=Guo |first=Minliang |last2=Ye |first2=Jingyang |last3=Gao |first3=Dawei |last4=Xu |first4=Nan |last5=Yang |first5=Jing |title=Agrobacterium-mediated horizontal gene transfer: Mechanism, biotechnological application, potential risk and forestalling strategy |journal=Biotechnology Advances |volume=37 |issue=1 |date=2019 |doi=10.1016/j.biotechadv.2018.12.008 |pages=259–270}}</ref> A 2013 study developed and validated an [[SNP array]] for [[molecular breeding]].<ref name="Varshney Bohra Yu Graner 2021">{{cite journal |last=Varshney |first=Rajeev K. |last2=Bohra |first2=Abhishek |last3=Yu |first3=Jianming |last4=Graner |first4=Andreas |last5=Zhang |first5=Qifa |last6=Sorrells |first6=Mark E. |title=Designing Future Crops: Genomics-Assisted Breeding Comes of Age |journal=Trends in Plant Science |volume=26 |issue=6 |date=2021 |doi=10.1016/j.tplants.2021.03.010 |pages=631–649}}</ref><ref name="Bekele Wieckhorst Friedt Snowdon 2013">{{cite journal |last=Bekele |first=Wubishet A. |last2=Wieckhorst |first2=Silke |last3=Friedt |first3=Wolfgang |last4=Snowdon |first4=Rod J. |title=High‐throughput genomics in sorghum: from whole‐genome resequencing to a SNP screening array |journal=Plant Biotechnology Journal |volume=11 |issue=9 |date=2013 |issn=1467-7644 |doi=10.1111/pbi.12106 |pages=1112–1125}}</ref>
language=en|

year=2021|
== Production ==
department=Feature Review|

volume=26|
{| class="wikitable" style="float:right; clear:left; width:14em; text-align:center;"
publisher=[[Cell Press]]|
|-
issue=6|
! colspan=2|Sorghum production – 2021
pages=631–649|
|-
first6=Mark|
! style="background:#ddf; width:75%;"| Country
first5=Qifa|
! style="background:#ddf; width:25%;"| <small>(Millions of [[tonne]]s)</small>
first4=Andreas|
|-
first2=Abhishek|
| {{USA}} ||11.4
first1=Rajeev|
|-
last6=Sorrells|
| {{IND}} ||4.8
last5=Zhang|
|-
last4=Graner|
| {{ETH}} ||4.4
first3=Jianming|
|-
last3=Yu|
| {{MEX}} ||4.4
last2=Bohra|
|-
last1=Varshney|
| {{ARG}} ||3.3
journal=[[Trends in Plant Science]]|
|-
issn=1360-1385|
| {{CHN}} ||3.0
title=Designing Future Crops: Genomics-Assisted Breeding Comes of Age|
|-
doi=10.1016/j.tplants.2021.03.010|
| '''World''' || '''61.4'''
s2cid=233382115|
|-
pmid=33893045|doi-access=free}}
|colspan=2|<small>Source: [[FAOSTAT]] of the United Nations</small><ref name="faostat">{{cite web|url=http://www.fao.org/faostat/en/#data/QC|title= Production of sorghum in 2021, Crops/Regions/World list/Production Quantity/Year (pick lists)|year=2023|publisher=UN Food and Agriculture Organization, Corporate Statistical Database (FAOSTAT)|access-date=30 September 2023}}</ref>
</ref>
|}

In 2021, world production of sorghum was 61 million [[tonne]]s, led by the United States with 19% of the total (table). India, [[Ethiopia]], and Mexico were the largest secondary producers.<ref name="faostat"/>

=== International trade ===

In 2013, [[China]] began purchasing American sorghum as a complementary livestock feed to its domestically grown maize. It imported around $1 billion worth per year until April 2018, when it imposed retaliatory [[tariff]]s as part of [[China–United States trade war (2018–present)|a trade war]].<ref>{{Cite news |url=https://www.latimes.com/business/la-fi-sorghum-china-20180418-story.html |title=Sorghum, targeted by tariffs, is a U.S. crop China started buying only five years ago |newspaper=[[Los Angeles Times]] |date=Apr 18, 2018 |access-date=28 January 2019}}</ref> By 2020, the tariffs have been waived, and trade volumes increased again<ref name="usda"/> before declining again as China began buying sorghum from other countries.<ref>{{cite news |title=U.S. Sorghum Exports Dwindle on "Near-Evaporation" of Chinese Demand, as China Looks to Brazilian Corn |url=https://farmpolicynews.illinois.edu/2023/01/u-s-sorghum-exports-dwindle-on-near-evaporation-of-chinese-demand-as-china-looks-to-brazilian-corn/ |access-date=18 March 2024 |work=Farm Policy News |publisher=University of Illinois |date=22 January 2023}}</ref> As of 2020, China is the world's largest sorghum importer, importing more than all other countries combined.<ref name="usda">{{cite web |title=U.S. Sorghum Prices Rally with China's Return to the Market |url=https://fas.usda.gov/data/us-sorghum-prices-rally-china-s-return-market |website=fas.usda.gov |publisher=US Department of Agriculture |date=28 July 2020}}</ref>

== In human culture ==

In Australia, sorghum is personified as a spirit among the [[Dagoman]] people of [[Northern Territory]], as well as being used for food; the local species are ''[[Sorghum intrans|S. intrans]]'' and ''[[Sorghum plumosum|S. plumosum]]''.<ref>{{cite journal |last=Arndt |first=W. |title=Indigenous Sorghum as Food and in Myth: The Tagoman Tribe |journal=[[Oceania (journal)|Oceania]] |volume=32 |issue=2 |year=1961 |pages=109–112 |jstor=40329309 }}</ref>

In Korea, the origin tale "[[Brother and sister who became the Sun and Moon]]" is also called "The reason sorghum is red".<ref name="EKC">{{cite encyclopedia |title=해와 달이 된 오누이 |language=Korean |trans-title=Brother and sister who became the Sun and Moon |encyclopedia=[[Encyclopedia of Korean Culture]] |year=1996 |last=최 |first=인학 |publisher=[[Academy of Korean Studies]] |location=성남 |url=http://encykorea.aks.ac.kr/Contents/Item/E0062663 |access-date= 2022-11-30}}</ref> In the tale, a tiger who is chasing a brother and sister follows them up a rotten rope as they climb into the sky, and become the sun and moon. The rope breaks, and the tiger falls to its death, impaling itself on a sorghum stalk, which becomes red with its blood.<ref name="EKFC">{{cite encyclopedia |title= 해와 달이 된 오누이 |encyclopedia= 한국민속문학사전 (Encyclopedia of Korean Folk Culture) |year=1996 |last= 조 |first= 현설 |publisher=[[National Folk Museum of Korea]] |location= 서울 |url=https://folkency.nfm.go.kr/kr/topic/detail/6006 |access-date= 2022-11-30}}</ref>

In Northeastern Italy in the [[early modern period]], sticks of sorghum were used by ''[[Benandanti]]'' visionaries of the [[Friuli]] district to fight off witches who were thought to threaten crops and people.<ref name="Klaniczay 1990">{{cite book |last=Klaniczay |first=Gábor |title=The Uses of Supernatural Power: The Transformation of Popular Religion in Medieval and Early-Modern Europe |translator-first=Susan |translator-last=Singerman |year=1990 |publisher=[[Princeton University Press]] |location=Princeton |isbn=978-0-6910-7377-4 |pages=129–130}}</ref>

== See also ==


==See also==
<!-- Please respect alphabetical order -->
* [[3-Deoxyanthocyanidin]]
* [[3-Deoxyanthocyanidin]]
* [[Apigeninidin]]
* [[Apigeninidin]]
Line 365: Line 387:
* [[List of antioxidants in food]]
* [[List of antioxidants in food]]


==References==
== References ==

{{Reflist|30em}}
{{reflist|30em}}

== External links ==


==External links==
{{Commons category}}
{{Commons category}}

* [http://www.cwrdiversity.org/checklist/genepool-details.php?id%5b%5d=21 Crop Wild Relatives Inventory]{{Dead link|date=March 2024 |bot=InternetArchiveBot |fix-attempted=yes }}: reliable information source on where and what to conserve ''ex-situ'', regarding '''''Sorghum''''' genepool
* [http://www.cwrdiversity.org/checklist/genepool-details.php?id%5b%5d=21 Crop Wild Relatives Inventory]{{Dead link|date=March 2024 |bot=InternetArchiveBot |fix-attempted=yes }}: reliable information source on where and what to conserve ''ex-situ'', regarding '''''Sorghum''''' genepool
* {{cite web|url=https://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?454806|title=Taxon: ''Sorghum bicolor'' (L.) Moench subsp. ''bicolor'' - information from National Plant Germplasm System/GRIN|date=2008-03-05|website=[[Germplasm Resources Information Network]] (GRIN): GRIN Taxonomy for Plants|publisher=[[United States Department of Agriculture Agricultural Research Service]] | location=[[Beltsville]], Md., USA|access-date=2008-12-12}}
* [https://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?454806 Taxon: ''Sorghum bicolor'' (L.) Moench subsp. ''bicolor'' information from National Plant Germplasm System/GRIN]


{{WestAfricanPlants|Sorghum bicolor}}
{{WestAfricanPlants|Sorghum bicolor}}

Revision as of 07:11, 7 May 2024

Sorghum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Genus: Sorghum
Species:
S. bicolor
Binomial name
Sorghum bicolor
Synonyms[1]
List
    • Agrostis nigricans (Ruiz & Pav.) Poir.
    • Andropogon besseri Kunth
    • Andropogon bicolor (L.) Roxb.
    • Andropogon caffrorum (Thunb.) Kunth
    • Andropogon compactus Brot.
    • Andropogon dulcis Burm.f.
    • Andropogon niger (Ard.) Kunth
    • Andropogon saccharatrus Kunth
    • Andropogon saccharatus (L.) Raspail
    • Andropogon sorghum (L.) Brot.
    • Andropogon subglabrescens Steud.
    • Andropogon truchmenorum Walp.
    • Andropogon usorum Steud.
    • Andropogon vulgare (Pers.) Balansa
    • Andropogon vulgaris Raspail
    • Holcus arduinii J.F.Gmel.
    • Holcus bicolor L.
    • Holcus cafer Ard.
    • Holcus caffrorum (Retz.) Thunb.
    • Holcus cernuus Ard.
    • Holcus cernuus Muhl. nom. illeg.
    • Holcus cernuus Willd. nom. illeg.
    • Holcus compactus Lam.
    • Holcus dochna Forssk.
    • Holcus dora Mieg
    • Holcus duna J.F.Gmel.
    • Holcus durra Forssk.
    • Holcus niger Ard.
    • Holcus nigerrimus Ard.
    • Holcus rubens Gaertn.
    • Holcus saccharatus var. technicus (Körn.) Farw.
    • Holcus sorghum L.
    • Holcus sorghum Brot. nom. illeg.
    • Milium bicolor (L.) Cav.
    • Milium compactum (Lam.) Cav.
    • Milium maximum Cav.
    • Milium nigricans Ruiz & Pav.
    • Milium sorghum (L.) Cav.
    • Panicum caffrorum Retz.
    • Panicum frumentaceum Salisb. nom. illeg.
    • Rhaphis sorghum (L.) Roberty
    • Sorghum abyssinicum (Hack.) Chiov. nom. illeg.
    • Sorghum ankolib (Hack.) Stapf
    • Sorghum anomalum Desv.
    • Sorghum arduinii (Gmel.) J.Jacq.
    • Sorghum basiplicatum Chiov.
    • Sorghum basutorum Snowden
    • Sorghum caffrorum (Retz.) P.Beauv.
    • Sorghum campanum Ten. & Guss.
    • Sorghum caudatum (Hack.) Stapf
    • Sorghum centroplicatum Chiov.
    • Sorghum cernuum (Ard.) Host
    • Sorghum compactum Lag.
    • Sorghum conspicuum Snowden
    • Sorghum coriaceum Snowden
    • Sorghum dochna (Forssk.) Snowden
    • Sorghum dora (Mieg) Cuoco
    • Sorghum dulcicaule Snowden
    • Sorghum dura Griseb.
    • Sorghum durra (Forssk.) Batt. & Trab.
    • Sorghum elegans (Körn.) Snowden
    • Sorghum eplicatum Chiov.
    • Sorghum exsertum Snowden
    • Sorghum gambicum Snowden
    • Sorghum giganteum Edgew.
    • Sorghum glabrescens (Steud.) Schweinf. & Asch.
    • Sorghum glycychylum Pass.
    • Sorghum guineense Stapf
    • Sorghum japonicum (Hack.) Roshev.
    • Sorghum margaritiferum Stapf
    • Sorghum medioplicatum Chiov.
    • Sorghum melaleucum Stapf
    • Sorghum melanocarpum Huber
    • Sorghum mellitum Snowden
    • Sorghum membranaceum Chiov.
    • Sorghum miliiforme (Hack.) Snowden
    • Sorghum nankinense Huber
    • Sorghum nervosum Besser ex Schult. & Schult.f.
    • Sorghum nervosum Chiov. nom. illeg.
    • Sorghum nigricans (Ruiz & Pav.) Snowden
    • Sorghum nigrum (Ard.) Roem. & Schult.
    • Sorghum notabile Snowden
    • Sorghum pallidum Chiov. nom. illeg.
    • Sorghum papyrascens Stapf
    • Sorghum rigidum Snowden
    • Sorghum rollii Chiov.
    • Sorghum roxburghii var. hians (Hook.f.) Stapf
    • Sorghum saccharatum Host nom. illeg.
    • Sorghum saccharatum (L.) Pers. nom. illeg.
    • Sorghum sativum (Hack.) Batt. & Trab.
    • Sorghum schimperi (Hack.) Chiov. nom. illeg.
    • Sorghum simulans Snowden
    • Sorghum splendidum (Hack.) Snowden
    • Sorghum subglabrescens (Steud.) Schweinf. & Asch.
    • Sorghum tataricum Huber
    • Sorghum technicum (Körn.) Batt. & Trab.
    • Sorghum technicum (Körn.) Roshev.
    • Sorghum truchmenorum K.Koch
    • Sorghum usorum Nees
    • Sorghum vulgare Pers. nom. illeg.

Sorghum bicolor, commonly called sorghum[2] (/ˈsɔːrɡəm/) and also known as great millet,[3] broomcorn,[4] guinea corn,[5] durra,[6] imphee,[7] jowar,[8] or milo,[9] is a grass species cultivated for its grain, which is used for food for humans, animal feed, and ethanol production. Sorghum originated in Africa, and is now cultivated widely in tropical and subtropical regions.[10]

Sorghum is the world's fifth-most important cereal crop after rice, wheat, maize, and barley, with 61,000,000 metric tons (60,000,000 long tons; 67,000,000 short tons) of annual global production in 2021.[11] Sorghum is typically an annual, but some cultivars are perennial. It grows in clumps that may reach over 4 metres (13 ft) high. The grain is small, ranging from 2 to 4 millimetres (0.079 to 0.157 in) in diameter. Sweet sorghums are cultivars primarily grown for forage, syrup production, and ethanol; they are taller than those grown for grain.[12][13]

Sorghum bicolor is the cultivated species of sorghum; its wild relatives make up the botanical genus Sorghum.

Description

Sorghum is a large stout grass that grows up to 2.4 metres (7.9 ft) tall. It has large bushy flowerheads or panicles that provide an edible starchy grain with up to 3,000 seeds in each flowerhead. It grows in warm climates worldwide.[14][15] One species, S. bicolor, is grown worldwide in large quantities for food and forage.[16] native to Africa with many cultivated forms.[17] Seventeen of the 25 species are native to Australia,[18][19][20] with the range of some extending to Africa, Asia, Mesoamerica, and certain islands in the Indian and Pacific Oceans.[21][22]

Evolution

Phylogeny

Sorghum is closely related to maize within the PACMAD clade of grasses, and more distantly to the cereals of the BOP clade such as wheat and barley.[23]

(Part of Poaceae)
BOP clade

Bambusoideae (bamboos)

Pooideae
other grasses

 (fescue, ryegrass)

  Triticeae  

Hordeum (barley)

Triticum (wheat)

Secale (rye)

Oryza (rice)

PACMAD clade

Pennisetum (fountaingrasses, pearl millet)

Sorghum (sorghum)

Zea (maize)

Taxonomy

Sorghum is in the grass family, Poaceae, in the subfamily Panicoideae, in the tribe Andropogoneae – the same as maize (Zea mays), big bluestem (Andropogon gerardi), and sugarcane (Saccharum spp.).

Accepted species recorded include:[24]

Sorghum flour on sale in a street market, Ethiopia, 2013
A plate of sorghum grain

History

Domestication

Piece of sorghum bread contained in basket, Predynastic Egypt, c. 3100 BC (5,100 years ago). Egyptian Museum, Turin[25]

S. bicolor was domesticated from its wild ancestor more than 5,000 years ago in Eastern Sudan in the area of the Rivers Atbara and Gash.[26][27] It has been found at an archaeological site near Kassala in eastern Sudan, dating from 3500 to 3000 BC, and is associated with the neolithic Butana Group culture.[28] Sorghum bread from graves in Predynastic Egypt, some 5,100 years ago, is displayed in the Egyptian Museum, Turin, Italy.[25]

The first race to be domesticated was bicolor; it had tight husks that had to be removed forcibly. Around 4,000 years ago, this spread to the Indian subcontinent; around 3,000 years ago it reached West Africa.[26] Four other races evolved through cultivation to have larger grains and to become free-threshing, making harvests easier and more productive. These were caudatum in the Sahel; durra, most likely in India; guinea in West Africa (later reaching India), and from that race mageritiferum that gave rise to the varieties of Southern Africa.[26]

Domestication and races of sorghum

Spread

In the Middle Ages, the Arab Agricultural Revolution spread sorghum and other crops from Africa and Asia across the Arab world as far as Al-Andalus in Spain.[29] Sorghum remained the staple food of the medieval kingdom of Alodia and most Sub-Saharan cultures prior to European colonialism.[30]

Sweet sorghum was important to the sugar trade in the 19th century.[31] The price of sugar was rising because of decreased production in the British West Indies and more demand for confectionery and fruit preserves, and the United States was actively searching for a sugar plant that could be produced in northern states. The "Chinese sugar-cane", sweet sorghum, was viewed as a plant that would be productive in the West Indies.[32]

Nutrition

Sorghum grain
Nutritional value per 100 g (3.5 oz)
Energy329 kJ (79 kcal)
72.1 g
Sugars2.53 g
Dietary fiber6.7 g
3.46 g
Saturated0.61 g
Monounsaturated1.13 g
Polyunsaturated1.56 g
10.6 g
VitaminsQuantity
%DV
Vitamin A equiv.
0%
0 μg
Thiamine (B1)
28%
0.332 mg
Riboflavin (B2)
7%
0.096 mg
Niacin (B3)
23%
3.69 mg
Pantothenic acid (B5)
7%
0.367 mg
Vitamin B6
26%
0.443 mg
Folate (B9)
5%
20 μg
Vitamin C
0%
0 mg
Vitamin E
3%
0.5 mg
MineralsQuantity
%DV
Calcium
1%
13 mg
Copper
32%
0.284 mg
Iron
19%
3.36 mg
Magnesium
39%
165 mg
Manganese
70%
1.6 mg
Phosphorus
23%
289 mg
Potassium
12%
363 mg
Selenium
22%
12.2 μg
Sodium
0%
2 mg
Zinc
15%
1.67 mg
Other constituentsQuantity
Water12.4 g

Percentages estimated using US recommendations for adults,[33] except for potassium, which is estimated based on expert recommendation from the National Academies.[34]

The grain is edible and nutritious. It can be eaten raw when young and milky, but has to be boiled or ground into flour when mature.[35]

Sorghum grain is 72% carbohydrates including 7% dietary fiber, 11% protein, 3% fat, and 12% water (table). In a reference amount of 100 grams (3.5 oz), sorghum grain supplies 79 calories and rich contents (20% or more of the Daily Value, DV) of several B vitamins and dietary minerals (table).

In the early stages of plant growth, some sorghum species may contain levels of hydrogen cyanide, hordenine, and nitrates lethal to grazing animals.[36] Plants stressed by drought or heat can also contain toxic levels of cyanide and nitrates at later stages in growth.[37]

Use

S. bicolor is widely used for food and animal fodder. It is also used to make alcoholic beverages, and biofuels such as ethanol.[15] It can be made into couscous, porridge, or flatbreads such as Indian Jōḷada roṭṭi or tortillas; and it can be burst in hot oil to make a popcorn, smaller than that of maize. Since it does not contain gluten, it can be used in gluten-free diets.[38]

In Nigeria, the pulverized red leaf-sheaths of sorghum have been used to dye leather, while in Algeria, sorghum has been used to dye wool.[39]

In South Africa, characteristically sour Kaffir beer is made from sorghum or millet. The process involves souring the mashed grain with lactic acid bacteria, followed by fermenting by the wild yeasts that were on the grain.[40]

In India, the panicle stalks are used as bristles for brooms.[41]

In countries including the US, the stalks of sweet sorghum varieties are crushed in a cane juicer to extract the sweet molasses-like juice. The juice is sold as syrup,[42][43][44] and used as a feedstock to make biofuel.[45]

Cultivation

Agronomy

Most varieties of sorghum are drought- and heat-tolerant, nitrogen-efficient,[46] and are grown particularly in arid and semi-arid regions where the grain is one of the staples for poor and rural people. These varieties provide forage in many tropical regions. S. bicolor is a food crop in Africa, Central America, and South Asia, and is the fifth most common cereal crop grown in the world.[47][48] It is most often grown without application of fertilizers or other inputs by small-holder farmers in developing countries.[49]

Sorghum grows in a wide range of temperatures. It can tolerate high altitude and toxic soils, and can recover growth after some drought.[12] Optimum growth temperature range is 12–34 °C (54–93 °F), and the growing season lasts for ~ 115-140 days. [50] It can grow on a wide range of soils, such as heavy clay to sandy soils with the pH tolerance ranging from 5.0 to 8.5.[51] It requires an arable field that has been left fallow for at least two years or where crop rotation with legumes has taken place in the previous year.[52] Diversified 2- or 4-year crop rotation can improve sorghum yield, additionally making it more resilient to inconsistent growth conditions.[53] In terms of nutrient requirements, sorghum is comparable to other cereal grain crops with nitrogen, phosphorus, and potassium required for growth.[54]

Pests and diseases

Insect damage is a major threat to sorghum plants. Over 150 species damage crop plants at different stages of development, resulting in significant biomass loss.[55] Stored sorghum grain is attacked by other insect pests such as the lesser grain borer beetle.[56] Sorghum is a host of the parasitic plant Striga hermonthica, purple witchweed; it can seriously reduce production.[57] Sorghum is subject to a variety of plant pathogens. The fungus Colletotrichum sublineolum causes anthracnose.[58] The toxic ergot fungus parasitises the grain, risking harm to humans and livestock.[59] Sorghum produces chitinases as defensive compounds against fungal diseases. Transgenesis of additional chitinases increases the crop's disease resistance.[60]

Genetics and genomics

The genome of S. bicolor was sequenced between 2005 and 2007.[61][62] It is generally considered diploid and contains 20 chromosomes,[63] however, there is evidence to suggest a tetraploid origin for S. bicolor.[64] The genome size is approximately 800 Mbp.[65]

Paterson et al., 2009 provides a genome assembly of 739 megabase.[66] The most commonly used genome database is SorGSD maintained by Luo et al., 2016.[66] An expression atlas is available from Shakoor et al., 2014 with 27,577 genes.[66] As of 2021 no pan-genome is available.[66] For molecular breeding (or other purposes) an SNP array has been created by Bekele et al., 2013, a 3K SNP Infinium from Illumina, Inc.[67]

Agrobacterium transformation can be used on sorghum, as shown in a 2018 report of such a transformation system.[68] A 2013 study developed and validated an SNP array for molecular breeding.[67][69]

Production

Sorghum production – 2021
Country (Millions of tonnes)
 United States 11.4
 India 4.8
 Ethiopia 4.4
 Mexico 4.4
 Argentina 3.3
 China 3.0
World 61.4
Source: FAOSTAT of the United Nations[70]

In 2021, world production of sorghum was 61 million tonnes, led by the United States with 19% of the total (table). India, Ethiopia, and Mexico were the largest secondary producers.[70]

International trade

In 2013, China began purchasing American sorghum as a complementary livestock feed to its domestically grown maize. It imported around $1 billion worth per year until April 2018, when it imposed retaliatory tariffs as part of a trade war.[71] By 2020, the tariffs have been waived, and trade volumes increased again[72] before declining again as China began buying sorghum from other countries.[73] As of 2020, China is the world's largest sorghum importer, importing more than all other countries combined.[72]

In human culture

In Australia, sorghum is personified as a spirit among the Dagoman people of Northern Territory, as well as being used for food; the local species are S. intrans and S. plumosum.[74]

In Korea, the origin tale "Brother and sister who became the Sun and Moon" is also called "The reason sorghum is red".[75] In the tale, a tiger who is chasing a brother and sister follows them up a rotten rope as they climb into the sky, and become the sun and moon. The rope breaks, and the tiger falls to its death, impaling itself on a sorghum stalk, which becomes red with its blood.[76]

In Northeastern Italy in the early modern period, sticks of sorghum were used by Benandanti visionaries of the Friuli district to fight off witches who were thought to threaten crops and people.[77]

See also

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External links