water potential


Also found in: Wikipedia.

water potential

[′wȯd·ər pə‚ten·chəl]
(physiology)
The difference in free energy or chemical potential (per unit molal volume) between pure water and water in cells and solutions.
References in periodicals archive ?
Tenders are invited for Purchase of water potential system
46 million, Ground Water Potential and Quality Evaluation in and around Quetta Valley (2017-20) Rs148.
They can detect small changes in the properties of soil and water potential.
The gold standard for measuring PWS is taking measurements of stem water potential.
Soil salinity and water deficit decrease the soil water potential that leads to late and inadequate germination associated with failure of stand establishment.
1991) found that application of Si led to formation of a silica cuticle layer on epidermal tissue of leaf, which is responsible for greater leaf water potential under water deficit conditions.
Either trees in both areas experienced the same midday water stress or stomatal regulation in this species adjusts to a certain midday leaf water potential, regardless of water availability.
Irrigation was performed in the first experiment and during the phase prior to the water deficit in the second experiment to maintain the soil water potential at a 0.
Water would run off and evaporate quickly during hot, dry summers and consequently the soil water potential ([[psi].
Once leaf water potential begins to decline, stomata close more readily and carbon assimilation is reduced.