What does PWP mean in Botany?

This page is about the meanings of the acronym/abbreviation/shorthand PWP in the Academic & Science field in general and in the Botany terminology in particular.

Permanent wilting point

Academic & Science » Botany

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Definition

What does PWP mean?

Permanent wilting point
Permanent wilting point or wilting point is defined as the minimal point of soil moisture the plant requires not to wilt. If moisture decreases to this or any lower point a plant wilts and can no longer recover its turgidity when placed in a saturated atmosphere for 12 hours. The physical definition of the wilting point is defined as the water content at −1500 J/kg of suction pressure, or negative hydraulic head. However, it is noted that the PWP values under field conditions are not constant for any given soil but are determined by the integrated effects of plant, soil, and atmospheric conditions.

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"PWP." Abbreviations.com. STANDS4 LLC, 2020. Web. 28 May 2020. <https://www.abbreviations.com/term/1955409>.

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