Increase in temperature and velocity of wind | vedclass

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Question

(A) Initially,an increase in temperature and wind velocity enhances the rate of transpiration by increasing the evaporation of water from the leaf sur

Vedclass · Accepted Answer

Of closure of stomata

Vedclass · Answer

(A) Initially,an increase in temperature and wind velocity enhances the rate of transpiration by increasing the evaporation of water from the leaf surface.However,if the temperature becomes excessively high,it leads to the closure of stomata (mid-day closure) to prevent excessive water loss.Similarly,extremely high wind velocity can cause the stomata to close due to mechanical stress or by reducing the water potential gradient,which ultimately slows down the transpiration process.Therefore,the correct reason for the initial increase followed by a decrease is the closure of stomata.

Increase in temperature and velocity of wind cause an increase in transpiration initially but later it slows down,because

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