Talk:Transpiration

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There seems to be much unnecessary vagueness and confusion about what powers transpiration. The power source is important, because it manages to , the moons rotation, and of,of gravity. Textbooks often state or imply that the source of power is sunlight, possibly because of an assumption that transpiration and photosynthesis share the same source of power. However, sunlight hardly has the thermodynamic qualities necessary for promoting evaporation. What seems more likely is that the major source of power for transpiration is solar radiation in the form of solar heat. Whereas plants obtain their food energy from sunlight, they lift nutrients (essential for catalysis of photosynthesis and metabolism)to the foliage using solar heat instead. This separation of power sources has potentially important implications for the ecology of plants, which have been neglected up to now.

this page is discussing the parts and all about the transpiration plant.this page is very valuable. i would just read this page if i were you because it mightjust inlighten you.i read it and it is helping me with my science homework Oh and make contribution to wikipedia. like god said {give and it will come back to you]

the page

it is a good page. it inlightened me

We're glad you liked it theresa knott

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hi, just wondering, what happens to the rest of the water taken in?

The rest of the water is used for photosynthesis (CO2+H2O+Light->O2+CH2O). Around 90-99 percent of the water is lost to transpiration. JackMontana (talk) 20:46, 4 December 2010 (UTC)

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—Preceding unsigned comment added by 90.198.99.112 (talk) 10:24, 21 September 2008 (UTC)

what about capillary action?

Capillary action is not important in this process. The water column (in the xylem) is established from the very beginning of plant growth and the transpirational pull due to the water potential gradient (increasingly negative from root to stem to leaf to atmosphere) drives the entire process. JackMontana (talk) 20:46, 4 December 2010 (UTC)

and how much is transpired, through, say, a tree? a plant?

For a tree it's a lot! I've amended the article. theresa knott 14:33, 4 Mar 2004 (UTC)

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How would a plant placed within 0.1 Mol solution of KCl affect its transpiration rates?

GCSE coursework, right? I had to do the same experiment last year. 86.139.235.160 13:12, 10 September 2006 (UTC)

I think this page is very infomative it helped me with my homework!!!! Q if the chloroplast in a plant is green what about red leaves???????81.157.136.44 17:14, 12 February 2007 (UTC)

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should the first step in my watercycle diagram be transpiration? —Preceding unsigned comment added by 24.19.236.61 (talk) 04:34, 14 September 2009 (UTC)

The water cycle is a cycle, there's not a first or last step. JackMontana (talk) 20:46, 4 December 2010 (UTC)