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Parameters derived from the pressure–volume curves for the seven studied Q. ilex provenances: (A) relative water content at the turgor loss point (RWCTLP), (B) water potential at the turgor loss point (ΨTLP), (C) osmotic potential at full turgor (Π0) and (D) the maximum bulk modulus of elasticity (εmax). Data are means ± s.e. Morphotypes are as indicated in the key. Different letters indicate significant differences among provenances (Tukey test, P < 0·05).
