Question

How does wavelength of light influence the rate of transpiration? compare a leaf under red and green filtered paper

Answer 1

decrease in wavelength of light results in increase in energy that can be produced by the plant during photosynthesis process. Increase in energy production requires higher CO2 which will come through stomata and which will simultaneously release water vapours or transpiration.

So, increase in wavelength ( decrease in energy of light) would lead to less transpiration.

Red light - Long wavelength- less transpiration

Green light - short wavelength - more transpiration.