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Fig. 2


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Values of (A) stomatal conductance (gs mol m−2 s−1), (B) net photosynthetic rate (Pn, μmol m−2 s−1) and (C) efficiency of PSII (Fv/Fm) measured in leaves of grapevines under well-watered conditions (100%) and various drought levels (75%, 50%, 25%) at the beginning (DAY 0) and after 19 days of drought imposition Each column represents the mean ± SE. Different letters indicate significant differences (P≤0.05, Duncan’s New Multiple Range Test).

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