Fig. 1
Comparisons between genotypic correlations in drought (solid black circles) and well - watered conditions (open white circles) between root:shoot ratio and a chlorophyll fluorescence in light (Fv'/Fm'), b photosynthetic rate, A, c plant height, and d fruit production. Regression lines are shown for significant correlations, which occurred only in the drought treatment. The inset in b shows the residuals of A in drought after accounting for gs versus root:shoot in drought, with the circle indicating genotypes that maintain a high level of photosynthesis together with a moderate value of root:shoot