Stomatal Sensitivity to Vapor Pressure Deficit and the Loss of Hydraulic Conductivity Are Coordinated in <i>Populus euphratica</i>, a Desert Phreatophyte Species.

The linear regression line between Ψ min and Ψ 50 (marginally significant) had a similar slope to that of angiosperm species in the literature ( Choat et al., 2012 ). suggesting that the species tended to regulate stomatal aperture to maintain water homeostasis but was less able to do so.

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