Question

what is root pressure? ​

Answer 1

'Root Pressure'. It is the transverse osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves. Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when transpiration is low during the day.

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Answer 2

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$\implies$Root pressure is a force or the hydrostatic pressure generated in the roots that help in driving the fluids and other ions from the soil in upwards directions into the plant’s vascular tissue – Xylem. This process is produced by osmotic pressure in the cells of the root. Root pressure is more common during the spring seasons before the leaves develop and the rate of the transpiration is rapid.

Root pressure is a force or the hydrostatic pressure generated in the roots that help in driving the fluids and other ions from the soil in upwards directions into the plant’s vascular tissue – Xylem. This process is produced by osmotic pressure in the cells of the root. Root pressure is more common during the spring seasons before the leaves develop and the rate of the transpiration is rapid.The effects of root pressure can be seen only during nights and in the early morning as the rate of evaporation is very low. The main contribution of the root pressure is to establish the continuous movements of the water molecules in the xylem which can be affected by the transpiration.

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