• Gowthamm Mandala
• Muthyalu Ubbu

Water potential is a measure of the potential energy in water as well as the difference between the potential in a given water sample and pure water. ... The internal water potential of a plant cell is more negative than pure water; this causes water to move from the soil into plant roots via osmosis.. Water potential term was coined by Slatyer and Taylor (1960). It is modern term which is used in place of DPD. The movement of water in plants cannot be accurately explained in terms of difference in concentration or in other linear expression. The best way to express spontaneous movement of water from one region to another is in terms of the difference of free energy of water between two regions (from higher free energy level to lower free energy level). According to principles of thermodynamics, every components of system is having definite amount of free energy which is measure of potential work which the system can do. Water Potential is the difference in the free energy or chemical potential per unit molar volume of water in system and that of pure water at the same temperature and pressure.

Water potential is a measure of the potential energy in water, pure water at the same temperature and pressure

"Water Potential: Components and Osmotic Relations of Cells", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 1, page no.1110-1114, January-2019, Available :http://www.jetir.org/papers/JETIR1901F51.pdf

"Water Potential: Components and Osmotic Relations of Cells", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 1, page no. pp1110-1114, January-2019, Available at : http://www.jetir.org/papers/JETIR1901F51.pdf