leaf_photosynthesis_Vcmax_per_area_25C

Label: Leaf Vcmax per unit leaf area at 25 deg C (Vcmax25)
Entity URI: https://w3id.org/APD/traits/trait_0020414
Type: numeric
Definition: Maximum [NCIT:C25564] carboxylation [MOP:0000591] rate [PATO:0000161] by the Rubisco complex [GO:0048492] in plant leaves [PO:0025034], recorded per unit leaf [PO:0025034] area [PATO:0001323] and measured at 25 Celsius. The value is a model parameter [STATO:0000034] derived from the initial slope of a photosynthesis [GO:0015979] A-ci response curve, the component that is carbon dioxide [CHEBI:16526] limited and hence limited by Rubisco activity.;The apparent maximum rate of Rubisco (ribulose 1,5-bisphosphate carboxylase/oxygenase) activity carboxylase activity (carboxylation capacity), measured at 25 Celsius and recorded per unit leaf area. This is a model-derived value, calculated from the portion of an A-ci response curve (curve showing the photosynthetic response to increasing carbon dioxide concentrations) at low carbon dioxide concentrations. This is the portion of the curve where the photosynthetic rate is limited by the Rubisco activity.
Additional comments: This trait is explicitly for Vcmax per leaf area measurements made at a temperature of 25 deg C. Measurements made at other temperatures should be mapped to `leaf_photosynthesis_Vcmax_per_area`
units: umol{CO2}/m2/s
allowable range: 10 - 300 umol{CO2}/m2/s

See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0020414) for additional information about this trait.

Coverage

For this trait, AusTraits includes a total of 130 records. This includes: