Cavendish bananas

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Cavendish
Bananas.JPG
Cavendish bananas are typically sold while still slightly green.
Species Musa acuminata
Cultivar group Cavendish subgroup of the AAA Group
Cultivar group members See text
Developing flowers of a Cavendish banana.
The 'Super Dwarf Cavendish' cultivar is usually sold under the name "Bananarama".

Cavendish bananas are the fruits of banana cultivars belonging to the Cavendish subgroup of the AAA cultivar group. They include commercially important cultivars like the 'Dwarf Cavendish' and the 'Grand Nain'. These cultivars replaced the Gros Michel banana as the most imported bananas in international commerce in the 1950s after crops of the latter were devastated by Panama disease.

History of cultivation[edit]

Cavendish bananas were named after William Cavendish, 6th Duke of Devonshire. Though not the first known banana specimens in Europe, at around 1834, Cavendish had received a shipment of bananas courtesy of the chaplain of Alton Towers (then the seat of the Earls of Shrewsbury). His gardener, Sir Joseph Paxton cultivated them in the greenhouses of Chatsworth House. The plants were botanically described by Paxton as Musa cavendishii, after the Duke.[1]

The Chatsworth bananas were shipped off to various places in the Pacific around the 1850s. It is believed that some of them may have ended up in the Canary Islands,[1] though other authors believe that the bananas in the Canary Islands had been there since the fifteenth century and had been introduced through other means. Namely by early Portuguese explorers who obtained them from West Africa and were later responsible for spreading them to the Caribbean.[2] African bananas in turn were introduced from Southeast Asia into Madagascar by early Austronesian sailors.[3] In 1888, bananas from the Canary Islands were imported into England by Thomas Fyffe. These bananas are now known to belong the Dwarf Cavendish cultivar.[4]

Cavendish bananas entered mass commercial production in 1903 but didn't gain prominence until later when Panama disease attacked the dominant Gros Michel ("Big Mike") variety in the 1950s. Because they were successfully grown in the same soils as previously affected Gros Michel plants, many assumed the Cavendish cultivars were more resistant to Panama disease. Contrary to this notion, in mid-2008, reports from Sumatra and Malaysia suggest Cavendish-like cultivars may be vulnerable to Panama disease.[5]

Taxonomy and nomenclature[edit]

Cavendish bananas are a subgroup of the triploid (AAA) cultivars of Musa acuminata.[6]

Cavendish cultivars are distinguished by height and features of the fruits,[2][7] and different cultivars may be recognized as distinct by different authorities. The most important clones for fruit production include: 'Dwarf Cavendish', 'Grande Naine', 'Lacatan' (bungulan), 'Poyo', 'Valéry', and 'Williams' under one system of cultivar classification.[2] Another classification includes: 'Double', 'Dwarf Cavendish', 'Extra Dwarf Cavendish', 'Grande Naine', 'Pisang Masak Hijau' (='Lacatan'), and 'Giant Cavendish' as a group of several difficult to distinguish cultivars (including 'Poyo', 'Robusta', 'Valéry', & 'Williams').[7] 'Grande Naine' is the most important clone in international trade, while 'Dwarf Cavendish' is the most widely grown clone.[7] 'Grande Naine' is also known as Chiquita banana.[8]

Uses[edit]

Cavendish bananas accounted for 47% of global banana production between 1998 and 2000, and the vast majority of bananas entering international trade.[9]

The fruits of the Cavendish bananas are eaten raw, used in baking, fruit salads, fruit compotes, and to complement foods. The outer skin is partially green when sold in food markets, and turns yellow when it ripens. As it ripens the starches turn to sugar making a sweeter fruit. When it reaches its final stage (stage 7), brown/black "sugar spots" develop. When overripe, the skin turns black and the flesh becomes mushy. Bananas ripen naturally until they are picked. Once picked they no longer turn yellow on their own, and need to be gassed with ethylene gas to start up ripening again. Most retailers sell bananas in stages 3–6, with stage 4 being the most ideal. The PLUs used for Cavendish bananas are 4011 (yellow) and 4186 (small yellow). Organic Cavendish bananas are assigned PLU 94011.[10]

Diseases[edit]

Because cultivated bananas are propagated by conventional vegetative reproduction rather than through sexual reproduction, each of the Cavendish clones are genetically identical and cannot evolve disease resistance. As there is currently no effective fungicide against Panama disease, some have speculated about a future where Cavendish cultivars are not usable for farming. In such a scenario, a separate cultivar may be developed as a replacement (as happened with the Gros Michel).

See also[edit]

References[edit]

  1. ^ a b "The Cavendish Banana". Peakland Heritage.org. 2002-07-19. Retrieved 26 November 2014. 
  2. ^ a b c Mohan Jain, S.; Priyadarshan, P. M. (2009). Breeding Plantation Tree Crops: Tropical Species. Springer Science+Business Media, LLC. ISBN 978-0-387-71199-7. 
  3. ^ Phillip Rowe & Franklin E. Rosales (1996). "Bananas and Plantains". In Jules Janick & James N. Moore. Fruit Breeding. Volume I. Tree and Tropical Fruits. John Wiley & Sons. pp. 169–171. ISBN 9780471310143. 
  4. ^ Peter N. Davies, "Fyffes and the Banana", 1990, 23–51
  5. ^ Ploetz, R. C. 2005. Panama disease, an old nemesis rears its ugly head: Part 1, the beginnings of the banana export trades. Plant Health Progress doi:10.1094/PHP-2005-1221-01-RV.
  6. ^ Michel H. Porcher; Prof. Snow Barlow (2002-07-19). "Sorting Musa names". The University of Melbourne, [1]. Retrieved 11 January 2011. 
  7. ^ a b c Ploetz, R.C.; Kepler, A.K.; Daniells, J. & Nelson, S.C. (2007). "Banana and Plantain: An Overview with Emphasis on Pacific Island Cultivars". In Elevitch, C. R. Species Profiles for Pacific Island Agroforestry. Hōlualoa, Hawai'i: Permanent Agriculture Resources (PAR). Retrieved 2013-01-10. 
  8. ^ Lisa Beth Voldeck (2010). "Indoor Banana Trees". http://www.bellaonline.com/. Retrieved 12 January 2011. 
  9. ^ Arias, Pedro; Dankers, Cora; Liu, Pascal; Pilkauskas, Paul (2003). The World Banana Economy 1985-2002. Rome: Food and Agriculture Organization of the United Nations. ISBN 92-5-105057-0. ISSN 1810-0783. Retrieved 30 July 2013. 
  10. ^ "PLU Codes (Alphabetical Order)". www.innvista.com. Retrieved 2010-06-22. 

External links[edit]