matric potential

matric potential
A water potential component, always of negative value, resulting from the presence of solid (often finely divided) surfaces; primarily responsible for water uptake by a dry seed prior to germination.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • matric potential — noun (botany) That component of the water potential of plants and soils that is due to the interaction of the water with colloids and to capillary forces • • • Main Entry: ↑matrix …   Useful english dictionary

  • matric potential —    The energy required to extract water from a porous medium to overcome the capillary and adsorptive forces [22] …   Lexicon of Cave and Karst Terminology

  • Water potential — is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects… …   Wikipedia

  • total soil-water potential —    The sum of the energy related components of a soil water system; i.e., the sum of the gravitational, matric, and osmotic components [22] …   Lexicon of Cave and Karst Terminology

  • water potential — The pressure gradient that induces the flow of water, particularly with reference to plant water uptake from the soil, comprising the net effects of suction, solutes and matric forces …   Glossary of Biotechnology

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  • Lorenzo A. Richards — Lorenzo Adolph Richards (1904–1993) or known as Ren was one of the 20th century’s most influential minds in the field of soil physics. [cite journal |author=Gardner, W.R. |year=1972 |title=The impact of L.A. Richards upon the field of soil water… …   Wikipedia

  • Tensiometer — A tensiometer is a device used to determine matric water potential Psi m (soil moisture tension) in the vadose zone. The tensiometer consists of a glass or plastic tube with a porous ceramic cup, and is filled with water. The top of the tube has… …   Wikipedia

  • Outline of hydrology — The following outline is provided as an overview of and topical guide to hydrology: Hydrology – study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and… …   Wikipedia

  • Tensiometer (Bodenfeuchte) — Tensiometer Tensiometer dienen zur kontinuierlichen Messung der Bodenfeuchte anhand der Saugspannung. Je trockener ein Boden ist, desto größer sind die Potentiale der Adsorptions und Kapillarkräfte, die das Wasser im Boden binden. Tensiometer… …   Deutsch Wikipedia

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