Endosmosis of water occurs when water potential of the cell sap is

Endosmosis of water occurs when the water potential of the cell sap is Lower.
Endosmosis is the movement of water inside the cell from the outer surrounding, it occurs when the cell is placed in a hypotonic solution.
During endosmosis, water moves from the soil to the root which means the water potential of the cell sap of the root is lower than that of the soil.
Osmotic potential (ψ_s) results from dissolved solutes in cell sap and is proportional to solute concentration and inversely proportional to cell water volume.