TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The amount of work that must be done per unit quantity of pure water in order to transport reversibly and isothermally an infinitesimal quantity of water from a pool of pure water, at a specified elevation and at atmospheric pressure, to a pool of water identical in composition with the soil water at the point under consideration, but in all other respects being identical with the reference pool.  5, record 1, English, - osmotic%20potential

Record number: 1, Textual support number: 1 CONT

... solute potential. The tendency for water to undergo phase changes or to pass through membranes is controlled by the presence of solutes in the water. This is important in soil for two reasons: (1) evaporation of soil water is an important phase change, (2) water flow from soil into cells of organisms, including plant roots, requires transport through membranes. ... As with matric potential, solute potential is never positive; it can be negative for impure water, or approximately zero for very pure water. Solute potential is also called osmotic potential, because the process of passing selectively through a semi-permeable membrane is called osmosis.  4, record 1, English, - osmotic%20potential

Record number: 1, Textual support number: 1 OBS

The symbols used is the Greek letter Psi sub Pi for osmotic potential ...  2, record 1, English, - osmotic%20potential

Record number: 1, Textual support number: 2 OBS

The symbol for solute potential is psi_s.  6, record 1, English, - osmotic%20potential

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Quantité de travail qu'il faut fournir par quantité unitaire d'eau pure pour transporter de façon réversible et isothermique une quantité infinitésimale d'eau d'un bassin d'eau pure, d'une élévation donnée et à la pression atmosphérique, à un bassin d'eau de composition identique à l'eau du sol située au point à l'étude, mais en tout autre qualité identique à l'eau du bassin de référence.  3, record 1, French, - potentiel%20osmotique

Record number: 1, Textual support number: 1 CONT

Potentiel osmotique (psi_os). Ce potentiel résulte de la présence de molécule dissoute dans l'eau. L'état de référence étant l'eau pure, ce potentiel sera toujours [plus petit que ou égal à] 0.  2, record 1, French, - potentiel%20osmotique

Record number: 1, Textual support number: 2 CONT

Pour les organes végétaux (vivants ou récoltés), le potentiel hydrique [...] se réduit pratiquement à deux composantes qui peuvent être mesurés séparément : le potentiel hydrostatique P et le potentiel osmotique [...]  4, record 1, French, - potentiel%20osmotique

Record number: 1, Textual support number: 1 OBS

Symbole : psi_os.  5, record 1, French, - potentiel%20osmotique

Record 1,  Textual support,  Spanish