what is root pressure? How it is useful to the plant?
Answers
Root pressure is simply pressure in the roots of the plants. The pressure is also defined as osmotic pressure.
The main cause of the root pressure is osmosis between the soil and roots Definition of OSMOSIS .
There is a pressure difference between the roots and soil. Pressure is a fundamental property of fluids, so it is viable in liquids like water. The soil continuously transports nutrients and water to plants, creating a low pressure zone, where the water from soil enters the semi-permiable membrane of root.
The root pressure is more where water content is more. In mangrove trees, which grape on semi-mud-water soil, the root pressure is more than the black soil which has among the least fluid content or density
Answer: Root pressure is a pressure in the xylem due to metabolic activity of the root cell. It is a hydrostatic pressure developed in the root system that pumps the water or sap in the root xylem. Root pressure helps in re-establishing the continuous chain of water molecules in the xylem. This pressure pushes the water up into small heights