Fig. 8From: Artemisia dominant species succession relating to the soil moisture decrease in abandoned land of the Loess Plateau (China): comparative study of drought-adaptive characteristicsProline (a), soluble sugar (b), ascorbic acid (c) and carotenoid contents (d) in the leaves of the four Artemisia species. CK control setup, DW drought stress. Different letters indicate significant differences at P < 0.05. Values are presented as mean ± SD, N = 6Back to article page