Root pressure exceeds over transpiration pull | vedclass

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(D) Root pressure is a positive pressure that develops in the roots due to the active absorption of mineral ions and subsequent water uptake. Transpir

Vedclass · Accepted Answer

Late night

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(D) Root pressure is a positive pressure that develops in the roots due to the active absorption of mineral ions and subsequent water uptake. Transpiration pull is the negative pressure generated by the evaporation of water from the leaves. During the day,especially under sunny conditions or fast winds,the rate of transpiration is very high,creating a strong transpiration pull that dominates root pressure. However,during the late night or early morning,the stomata are closed and transpiration is minimal or absent. Consequently,the root pressure becomes the dominant force,which can lead to the phenomenon of guttation.

Root pressure exceeds over transpiration pull during

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