Fig. 5
From: Do karst woody plants control xylem tension to avoid substantial xylem cavitation in the wet season?
Correlation between minimum leaf water potential (Ψmin) and vulnerability to cavitation (Ψ50). Data for 56 plant species were compiled from this and other studies (see text for references). The regression coefficient and its level of significance are given. The closed dots represent data from the 13 karst species from this study. There was no significant association between Ψmin and Ψ50 (P = 0.121) when only these data were analysed