wilting point

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wilting point

[′wilt·iŋ ‚pȯint]
(botany)
A condition in which a plant begins to use water from its own tissues for transpiration because soil water has been exhausted.
References in periodicals archive ?
3 Available R K, Fe, Zn, Mn and Cu extracted with Mehlich I; Exchangeable Ca, Mg and Al extracted with 1 mol L-1 KCl; (1) Field capacity, (2) Permanent wilting point.
For the vineyard, he evaluates evaporation, soil field capacity, soil type and permanent wilting point.
Field capacity and permanent wilting point aside, Decker checks the forecast frequently for changes in weather.
Today this article may seem too simplistic an explanation of basic irrigation concepts -- field capacity, permanent wilting point, readily available moisture.
This water content is called the permanent wilting point (PWP).
Generally, two hydrolimits are considered: field capacity (FC) and permanent wilting point (PWP).
2001) is a very simplified method in which the estimation of the permanent wilting point is performed based on a single property.
Plants extract this water until the soil water reaches a level called the permanent wilting point.
s] is 10 dS/m for a loamy sand (soil #2) the permanent wilting point occurs in this soil by the time the matric head reaches a value of only 10m (or 1 bar).
With further drying, soil becomes too dry for the plant to access any water, and the permanent wilting point is reached.
Since direct measurement of water retention characteristics over a large area is expensive, time-consuming, and difficult, in this investigation some of the easily measured soil physical and chemical properties were determined in rainfed rice area and pedo-transfer functions were derived through regression equations to predict water content at field capacity, permanent wilting point, and available water capacity.
The permanent wilting point of our soil was calculated to be 0.
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