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Bar graphs of maximum carboxylation rate (V c,max) (a), electron-transport rate at saturating light and CO2 (J 1200) (b), and triose-phosphate use (TPU) (c) estimated with CO2-response curves based on C i (A/C c) and C c (A/C c) in the control and drought plots for the summer campaign. Marginal significant differences (P<0.1) between the control and drought plots are indicated by asterisks in brackets. Vertical bars indicate standard errors of the means (control, n=7; drought, n=8).
