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Linear correlations between leaf conductances and (A) quantum efficiency of PSII photochemistry (Fq′/Fm′) or (B) maximum quantum efficiency of PSII photochemistry (Fv/Fm) during 3 d flooding of 1-month-old tomato plants. Points are from paired individual readings taken over 3 d of flooding. R is the correlation coefficient, and dashed lines show the confidence range at P = 0·05.
