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 ?
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).
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).
s] values (on the horizontal axis) and their corresponding matric heads at the permanent wilting point (on the linear, vertical axis).
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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