三种外源植物生长调节物质对玉米幼苗耐寒性的影响
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金梓浩, 赵文清, 王芳, 王威, 彭云玲, 常芳国
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Effects of Three Exogenous Plant Growth Regulators on the Cold Tolerance of Maize Seedlings
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Jin Zihao, Zhao Wenqing, Wang Fang, Wang Wei, Peng Yunling, Chang Fangguo
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表2 外源5-ALA、MeJA和SL对低温胁迫玉米幼苗生长的影响
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Table 2 Effects of exogenous 5-ALA, MeJA, and SL on the growth of maize seedlings under low temperature stress
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外源物质Exogenous substance | 处理Treatment | 根鲜重RFW (g) | 苗长SL (cm) | 苗鲜重SFW (g) | 叶面积LA (cm2) | 5-ALA | NT | 0.38±0.06a | 23.33±0.60a | 0.80±0.08a | 9.78±0.70a | | H0 | 0.25±0.03b | 13.33±0.95d | 0.38±0.01c | 4.77±0.91c | | H1 | 0.28±0.02ab | 14.25±0.21cd | 0.38±0.03c | 4.87±0.20c | | H2 | 0.32±0.05ab | 14.35±0.47c | 0.48±0.06bc | 6.11±1.04bc | | H3 | 0.33±0.07ab | 16.76±1.35b | 0.49±0.02bc | 6.98±0.56b | | H4 | 0.28±0.06ab | 16.90±1.12b | 0.57±0.10b | 7.13±1.16b | | H5 | 0.25±0.06b | 15.13±1.23b | 0.50±0.09bc | 5.98±1.22bc | MeJA | NT | 0.39±0.04a | 21.70±2.21a | 0.78±0.10a | 9.82±0.70a | | H0 | 0.25±0.04c | 12.43±0.92c | 0.44±0.04c | 4.96±0.90c | | H1 | 0.28±0.06bc | 13.75±0.54bc | 0.52±0.06bc | 5.64±0.31bc | | H2 | 0.38±0.06ab | 15.20±1.03b | 0.66±0.10ac | 6.76±0.80b | | H3 | 0.32±0.04abc | 14.10±0.48bc | 0.56±0.05bc | 5.67±0.48bc | | H4 | 0.31±0.05abc | 13.48±0.83bc | 0.55±0.07bc | 5.56±1.12bc | | H5 | 0.26±0.03bc | 13.13±0.71bc | 0.50±0.05c | 5.52±0.51bc | SL | NT | 0.37±0.02ab | 21.83±0.57a | 0.77±0.03a | 9.36±0.41a | | H0 | 0.24±0.03d | 13.78±0.40d | 0.44±0.02d | 5.17±0.81c | | H1 | 0.27±0.07cd | 14.77±0.26cd | 0.53±0.06cd | 5.43±0.71c | | H2 | 0.31±0.03bcd | 15.00±0.88c | 0.58±0.03c | 6.04±0.86bc | | H3 | 0.41±0.02a | 16.23±0.76b | 0.63±0.11bc | 7.21±1.39b | | H4 | 0.39±0.05ab | 16.98±0.40b | 0.71±0.05ab | 7.53±0.73b | | H5 | 0.33±0.02bc | 16.40±0.39b | 0.58±0.03b | 7.32±0.38b |
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