Fig. 2.

Relative water content and water potential of well-watered and drought stress in self-rooted and grafted vines leaves. a relative water content (RWC); b water potential (Ψ). The values are the means ± SD (n = 3). The “T” means three different grape materials in the same treatment period. “D” means the same grape material in different treatment periods, “F” means F-values. “T X D” indicates their interaction. Different lowercase letters denote significant differences among three different grape materials in the same treatment period, and uppercase letters represent significant differences in the same grape material at different treatment periods (P < 0.05) based on Duncan’s test