Leaf water potential, stomatal resistance, and photosynthetic response to water stress in peach seedlings
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Updated: Aug 8, 2026

High Throughput Image-Based Phenotyping for Determining Morphological and Physiological Responses to Single and Combined Stresses in Potato
Published on: June 7, 2024
J M Hand1, E Young, A C Vasconcelos
1Department of Horticulture and Forestry, New Jersey Agricultural Station, Rutgers University, New Brunswick, New Jersey 08903.
Abstract:
Individual groups of peach (Prunus persica [L.] Batsch) seedlings stressed to -17, -26 and -36 bars recovered to control levels within 1, 3, and 4 days, respectively. Stomatal resistance was significantly correlated with both leaf water potential and net photosynthesis. In seedlings stressed to -52 bars, leaf water potential and stomatal resistance recovered sooner than net photosynthesis, despite recovery of 0(2) evolution at a rate similar to leaf water potential. Therefore, some nonstomatal factor other than reduction in photochemical activity must be responsible for the lag in recovery of CO(2) assimilation following irrigation.
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