Question

Writes notes on Root Pressure

Answer 1

Root pressure is the transverse osmotic pressure within the cells of aroot 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

Answer 2

Root pressure is the transverse osmotic pressure within the cells of aroot 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
This rate is several times higher as would be possible to the Bose theory (Shull, MacDougal, Benedict). (ii) Root pressure theory : It is proposed by Priestly. According to this theory the water, which is absorbed by the root-hairs from the soil collects in the cells of the cortex
Use of root pressure for plant : Root pressurehelps in re-establishing the continuous chains of water molecules in the xylem. Transpirational pull maintains the flow of water molecules from the roots to shoot . When the nutrients are absorbed by roothairs,water along with minerals,increases the pressure in the xylem.