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Table I

Leaf predawn water potential (Ψp) and relative water content (RWC) during winter (July) and summer (February) for 3 field grown Eucalyptus species. p values represent seasonal differences between measurements. Post hoc grouping was performed using Tukey’s HSD. Season significance was obtained using ANOVA and Fishers LSD tests.

Species Winter Species post hoc Summer Species post hoc Season significance


se groups se groups
Ψpdwn (Mpa)
E. obliqua –0.381 0.030 a –0.642 0.041 a 0.000
E. rubida –0.240 0.036 a –1.063 0.127 b 0.000
E. melliodora –0.683 0.212 b –1.158 0.051 b 0.000
RWC (%)
E. obliqua 87.727 1.321 a 94.279 0.487 a 0.000
E. rubida 88.747 1.113 a 90.459 0.944 b 0.253
E. melliodora 94.292 0.718 b 91.128 0.829 b 0.008