hydraulic_safety_margin_88

Explore the data for this trait in the portal

• Label: Hydraulic safety margin, 88%
• Entity URI: https://w3id.org/APD/traits/trait_0021055
• Type: numeric
• Definition: The difference between the shoot water potential [EnvThes:22311] (tension [PATO:0002284] (water pressure) in stem [PO:0009047] xylem vessels [PO:0025417]) at which the mean turgor pressure [TO:0000701] of cells [CL:0000000] drops to zero and the water potential at which the hydraulic conductivity [EnvThes:22133] has declined by 88% from the mean maximum [NCIT:C25564] rate [PATO:0000161].;The difference between the stem water potential at turgor loss and the water potential at which 88% of conductivity is lost.
• Additional comments: Alternative definitions for this trait include 1) the difference between the minimum (most negative) observed stem water potential and the water potential at which 88% of conductivity is lost; and 2) the difference between the stem water potential at stomatal closure and the water potential at which 88% of conductivity is lost. If data mapped to this trait use one of these alternate definitions it should be clearly stated in the methods or added as a method context property.
• units: MPa
• allowable range: -5 - 10 MPa

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0021055) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 48 records. This includes:

• data for 34 species.
• data for 11 families.
• data from 3 datasets (see the portal Citations tab for a list of sources)