Fig. 2From: Morphological and physiological responses of Heteropogon contortus to drought stress in a dry-hot valleyPlant height (a), crown area (b) and leaf area per leaf (c) of Heteropogon contortus at different stages under four water levels. Values represent means (n = 5) with standard error bars. The different letters above the bars indicate significant differences among the treatments at the same stage at P < 0.05Back to article page