Claim · model-written summary
The authors propose using the curve to select drought enduring varieties and manage irrigation from predawn water potential.
- Taxon
- Cucumis melo
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Cucumis melot0 - Outcome
- select crop varieties able to endure longer periods of drought with minimal impact on carbon assimilation,and better manage irrigation based on estimates of Ψ pde0
Verbatim
e0“the WP curve could be used to select crop varieties able to endure longer periods of drought with minimal impact on carbon assimilation,and better manage irrigation based on estimates of Ψ pd to support effective use of water without a yield decrease”
t0“Cucumis melo”
Title
Heinrich di Santo; Thorsten Knipfer; Felipe H. Barrios-Masias Functional Plant Biology 2025. doi:10.1071/fp25048
Other claims from this paper (14)
- Observation The water potential curve differed between greenhouse and field environments.
- Observation The shift from higher to lower stomatal conductance occurred earlier under greenhouse conditions.
- Observation The greenhouse water potential breakpoint was -0.5MPa of predawn potential.
- Observation The field water potential breakpoint was -0.72MPa of predawn potential.
- Association At the greenhouse breakpoint, stomatal conductance was reduced by 55%.
- Association At the field breakpoint, stomatal conductance was reduced by 85%.
- Association During phase I, stomatal conductance fell as drought intensified.
- Association During phase I, carbon assimilation was not significantly compromised.
- Observation At the greenhouse breakpoint, carbon assimilation decreased by 57%.
- Observation At the field breakpoint, carbon assimilation decreased by 61%.
- Observation Greenhouse leaves reached turgor loss at midday water potential of -0.83MPa.
- Observation Field leaves reached turgor loss at midday water potential of -1.3MPa.
- Method / resource Midday water potential at turgor loss was similar to bench-top pressure-curve estimates.
- Method / resource The water potential curve identifies the transition to water-conservative behaviour in melons.