Fig. 2

Correlation between electrolyte leakage at −25 °C and a electrolyte leakage at −17 °C (P = 0.0003) and b irreversible branch diameter shrinkage DSirreversible (P = 0.0015) during a temperature decrease to −25 °C. Electrolyte leakage is denoted with an index of injury as described by Flint et al. (1967). Irreversible branch diameter shrinkage has been square root transformed. The whole data set is presented in the figure at tree level. Linear regression lines are shown