Any break in the water column in the xylem ge | vedclass

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Question

(D) The water column in the $xylem$ is maintained by the cohesion-tension theory. Excessive transpirational pull can sometimes cause cavitation or air

Vedclass · Accepted Answer

Root pressure

Vedclass · Answer

(D) The water column in the $xylem$ is maintained by the cohesion-tension theory. Excessive transpirational pull can sometimes cause cavitation or air bubbles, leading to a break in the water column. $Root$ $pressure$ is a positive pressure that develops in the roots due to the active absorption of mineral ions, which draws water into the $xylem$. This positive pressure helps to push the water column upward and can re-establish the continuity of the water column if it has been broken.

Any break in the water column in the $xylem$ generated by excess transpirational pull is re-established by............

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