- permanent wilting point
- Abbreviation: PWPThe moisture content of a soil below which plants wilt to such an extent that they fail to recover even when fully watered.
Glossary of Biotechnology for Food and Agriculture . 2015.
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Permanent wilting point — (PWP) or wilting point (WP) 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… … Wikipedia
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wilting point — The moisture content of soil at which plants start to wilt, but not to the extent that they fail to recover when placed in a humid atmosphere. See: permanent wilting point … Glossary of Biotechnology
wilting coefficient — noun also wilting point : the level of soil moisture at which water becomes unavailable to plants and permanent wilting ensues echard … Useful english dictionary
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Available water capacity — or available water content (AWC) is the range of available water that can be stored in soil and be available for growing crops. [cite book |author=Richards, L.A. and Wadleigh, C.H. |year=1952 |chapter=Soil water and plant growth |title=Soil… … Wikipedia
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Water content — Soil composition by phase: s soil (dry), v void (pores filled with water or air), w water, a air. V is volume, M is mass. Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture),… … Wikipedia
Moisture equivalent — is proposed by Lyman Briggs and McLane (1910) as a measure of field capacity for fine textured soil materials. Moisture equivalent is defined as the percentage of water which a soil can retain in opposition to a centrifugal force 1000 times that… … Wikipedia
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