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Figure 1


Mean needle electrolyte leakage values for each test temperature after the first growing season. Red pine seedlings were fall fertilized with a single application of ammonium nitrate (NH4 NO3) at rates of 0, 11, 22, 44 and 89 kg N ha−1. Each bar represents mean (n = 5) ± SE. Bars with different letters within each test temperature are significantly different at α = 0.05 .

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