stem_hydraulic_conductivity

Label: Stem hydraulic conductivity (Kh)
Entity URI: https://w3id.org/APD/traits/trait_0021013
Type: numeric
Definition: A stem [PO:0009047] water transport [GO:0006833] trait which is a measure of the rate [PATO:0000161] of water [CHEBI:15377] movement [NCIT:C37994] through a stem under a specific [NCIT:C38024] driving force [PATO:0001035] (water potential [EnvThes:22311] gradient [NCIT:C70693]), accounting for the stem length [PATO:0000122]. It is calculated as the ratio [PATO:0001470] of the water flow [NCIT:C41141] rate through the stem segment (kg/s) to the water potential gradient across the stem segment (MPa), multiplied by the path length measured (m).;Kh; Measure of the efficiency of water flow through a stem segment. It is calculated as the ratio of the water flow rate (kg/s) to the water potential gradient (MPa) across the stem segment, multiplied by the stem length (m).
Additional comments: This trait should not be confused with hydraulic conductance (kh), which is the ratio of water flow flow rate to the water potential gradient across the stem segment, but IS NOT normalised to the path length and has units kg/MPa/s.
units: 10^6.kg.m/MPa/s
allowable range: 0.01 - 2000 10^6.kg.m/MPa/s

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0021013) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 264 records. This includes: