Fig. 5.

Response of leaf area to water deficit and rewatering in different leaves of a plant: final area of leaves 6, 8, 10 and 12 of Arabidopsis thaliana or leaves 5, 6, 7 and 8 of Helianthus annuus, under well-watered conditions (white), constant water deficit (black), or a water deficit followed by a rewatering after the studied leaves had ceased to expand (grey). Vertical bars represent ± s.e. (n = 6) and different letters indicate significant differences between means (P < 0·05)