非结构性碳水化合物与氮分配对美洲黑杨和青杨耐盐能力的影响
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Effects of non-structural carbohydrate and nitrogen allocation on the ability of Populus deltoides and P. cathayana to resist soil salinity stress
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图6. 不同处理下美洲黑杨与青杨叶氮稳定同位素比值(δ15N)(平均值±标准误)。CK, 对照; D, 去叶; Sa, 盐胁迫; Sa-D, 盐胁迫与去叶; Sp, 物种。不同小写字母代表差异显著(p < 0.05)。*, 0.01 < p ≤ 0.05; **, 0.001 < p ≤ 0.01; ***, p ≤ 0.001。 |
Fig. 6. Nitrogen stable isotope ratio (δ15N) in leaves of Populus deltoides and P. cathayana under different treatments (mean ± SE). CK, control; D, defoliation; Sa, salt stress; Sa-D, salt stress and defoliation; Sp, species. Different lowercase letters indicate significant differences among treatments (p < 0.05). *, 0.01 < p ≤ 0.05; **, 0.001 < p ≤ 0.01; ***, p ≤ 0.001. |
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