Fig. 7 Association between dry weight and carbon isotope discrimination in the F₂ generation of L. esculentum x L. pennellii grown in a wet and a dry environment in 1995 (A) and terminated early and late in 1996 (B). The regression is across the two environments in 1995, whereas in 1996 the regressions are for the early and the late environments separately. r, correlation coefficient; **, P < 0.01; ***, P < 0.001

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