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Question
Rate of transpiration is dependent upon
Rate of transpiration is dependent upon
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Solution
The correct option is C Vapour pressure deficit
Rate of transpiration does not depend upon negative turgor pressure, temperature and D.P.D.It depends upon vapour pressure deficit (VPD). VPD is the difference between the amount of moisture in the air and the amount of moisture in the saturated air. Since VPD increases, the drying ability of air increase. Plants transpire more, requiring more water to be drawn from the roots. Thus increase in VPD increases transpiration rate.
Rate of transpiration does not depend upon negative turgor pressure, temperature and D.P.D.
It depends upon vapour pressure deficit (VPD). VPD is the difference between the amount of moisture in the air and the amount of moisture in the saturated air. Since VPD increases, the drying ability of air increase. Plants transpire more, requiring more water to be drawn from the roots. Thus increase in VPD increases transpiration rate.
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