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Fig. 3 | Annals of Forest Science

Fig. 3

From: Irreversible diameter change of wood segments correlates with other methods for estimating frost tolerance of living cells in freeze-thaw experiment: a case study with seven urban tree species in Helsinki

Fig. 3

Mean index of injury at a −17 °C and b −25 °C is shown for winter and early spring for each species with standard error. Electrolyte leakage is denoted with an index of injury as described by Flint et al. (1967). Significant differences (P < 0.05) among tree taxa in early spring measurements are denoted with different letters

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Annals of Forest Science

ISSN: 1297-966X