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POTENCIAL HIDRICO [2 records]
Record 1 - internal organization data 2014-09-16
Record 1, English
Record 1, Subject field(s)
- Metrology and Units of Measure
- Soil Science
- Plant Biology
Record 1, Main entry term, English
- water potential
1, record 1, English, water%20potential
correct
Record 1, Abbreviations, English
- psiw 2, record 1, English, psiw
see observation
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
... a measure of the tendency of water to move from high free energy to lower free energy. 3, record 1, English, - water%20potential
Record number: 1, Textual support number: 1 CONT
Water potential is the sum of osmotic potential, pressure potential, [gravitational potential,] and matric potential. 4, record 1, English, - water%20potential
Record number: 1, Textual support number: 2 CONT
For historical and practical reasons, however, plant physiologists have developed another parameter called the water potential (psiw). Water potential is expressed in pressure units such as megapascals (MPa). ... Like chemical potential, water potential is a relative quantity, and is always determined as a difference between the sample in question and a standard reference. For plant physiologists, the standard reference for water potential measurements is the water potential of pure water at one atmosphere of pressure. This reference value is defined as 0 MegaPascals. 2, record 1, English, - water%20potential
Record number: 1, Textual support number: 1 OBS
[Water potential] is replacing the concept of osmotic pressure and differs from osmotic pressure in taking capillary and imbibitional forces into account. 4, record 1, English, - water%20potential
Record number: 1, Textual support number: 2 OBS
The symbol for water potential is the Greek letter Psi. ... Water potential is measured in units of atmospheric pressure; bars or dynes per square centimeter. (1 bar = 106 dynes/cm²). 3, record 1, English, - water%20potential
Record number: 1, Textual support number: 3 OBS
The symbol used is the Greek letter psiw. 5, record 1, English, - water%20potential
Record 1, French
Record 1, Domaine(s)
- Unités de mesure et métrologie
- Science du sol
- Biologie végétale
Record 1, Main entry term, French
- potentiel hydrique
1, record 1, French, potentiel%20hydrique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les composantes du potentiel hydrique. Dans un sol, l'énergie potentielle de l'eau peut provenir de plusieurs sources. [...] Potentiel gravitationnel [...] Potentiel matriciel [...] Potentiel osmotique [...] 2, record 1, French, - potentiel%20hydrique
Record number: 1, Textual support number: 1 OBS
Paramètre de l'eau du sol ou de la plante. 3, record 1, French, - potentiel%20hydrique
Record number: 1, Textual support number: 2 OBS
Bien qu'aujourd'hui le terme potentiel hydrique soit le terme recommandé, on trouve encore, héritage du passé, d'autres appellations de cette même grandeur : potentiel de succion, tension de succion, déficit de pression, hauteur capillaire, etc. Le fait à retenir est que ces différentes dénominations, qu'il faut désormais éviter d'utiliser en physiologie végétale et en agronomie, sont le plus souvent équivalentes (au signe près et compte tenu des unités dans lesquelles elles sont exprimées); elles définissent toutes «l'état énergétique» de l'eau dans un substrat. 4, record 1, French, - potentiel%20hydrique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Metrología y unidades de medida
- Ciencia del suelo
- Biología vegetal
Record 1, Main entry term, Spanish
- potencial hídrico
1, record 1, Spanish, potencial%20h%C3%ADdrico
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Gradiente de presión que provoca el flujo de agua, especialmente en relación a su absorción del suelo por las plantas. 1, record 1, Spanish, - potencial%20h%C3%ADdrico
Record number: 1, Textual support number: 1 OBS
Depende de los componentes gravitatorios, matricial, osmótico y de presión. 1, record 1, Spanish, - potencial%20h%C3%ADdrico
Record 2 - internal organization data 2012-06-13
Record 2, English
Record 2, Subject field(s)
- Plant Biology
- Biophysics
Record 2, Main entry term, English
- wall pressure
1, record 2, English, wall%20pressure
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The pressure exerted on the contents of a plant cell by the cell wall that is equal in force and opposite in direction to the turgor pressure. 1, record 2, English, - wall%20pressure
Record 2, French
Record 2, Domaine(s)
- Biologie végétale
- Biophysique
Record 2, Main entry term, French
- pression membranaire
1, record 2, French, pression%20membranaire
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
[...] lorsque l'équilibre est atteint [...] la cellule est en état de turgescence maximale, et l'équilibre signifie que la pression membranaire compense exactement la pression osmotique égale alors à la valeur osmotique. 1, record 2, French, - pression%20membranaire
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Biología vegetal
- Biofísica
Record 2, Main entry term, Spanish
- presión de pared
1, record 2, Spanish, presi%C3%B3n%20de%20pared
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Presión que ejerce la pared celular contra la turgencia del contenido celular. 1, record 2, Spanish, - presi%C3%B3n%20de%20pared
Record number: 2, Textual support number: 1 CONT
La presión de pared es igual y opuesta al potencial de turgencia. 1, record 2, Spanish, - presi%C3%B3n%20de%20pared
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