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  4. Which of the following factors affect the rate of transpiration?

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Q. Which of the following factors affect the rate of transpiration?

NTA AbhyasNTA Abhyas 2020Transport in Plants

Solution:

Rate of transpiration increases with increase in temperature, but at very high-temperature transpiration decreases due to closure of stomata. Light promotes the opening of stomata thus increases transpiration. Increases in humidity increases the opening of stomata but decrease diffusion of water vapors out of stomata. Increase in wind speed increase transpiration but very high wind velocity causes closure of stomata.