At mid-day hours,the xylem sap is in a state | vedclass

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(B) During mid-day hours,the rate of transpiration is at its peak due to high solar radiation and temperature. As water evaporates from the stomata of

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Tension

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(B) During mid-day hours,the rate of transpiration is at its peak due to high solar radiation and temperature. As water evaporates from the stomata of leaves,it creates a negative pressure potential (suction force) in the xylem vessels. This negative pressure pulls the water column upwards from the roots to the leaves. Because the water column is being pulled under this negative pressure,the xylem sap is said to be in a state of tension (or negative hydrostatic pressure).

At mid-day hours,the xylem sap is in a state of

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