water_potential_predawn

Explore the data for this trait in the portal

• Label: Pre-dawn water potential
• Entity URI: https://w3id.org/APD/traits/trait_0021030
• Type: numeric
• Definition: The shoot system [PO:0009006] water potential [EnvThes:22311] just before sunrise, a proxy for soil water potential [EnvThes:22283] and representing the plant's daily maximum [NCIT:C25564] (least negative) water potential.;The water potential of a plant's shoot system just before sunrise, a proxy for soil water potential and the plant's highest (least negative) water potential for the day.
• Additional comments: Predawn water potential is often assumed to equal the soil water potential, but the plant's water potential does not necessarily equilibrate with soil water potential overnight. It is therefore better considered a "proxy" of soil water potential.
• units: MPa
• allowable range: -20 - 0 MPa

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0021030) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 1,053 records. This includes:

• data for 273 species.
• data for 47 families.
• data from 19 datasets (see the portal Citations tab for a list of sources)