玉米幼苗响应低铁胁迫的根系形态与干物质积累特征
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任云, 刘静, 李哲馨, 李强
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Root Morphology and Dry Matter Accumulation of Maize Seedlings in Response to Low Iron Stress
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Ren Yun, Liu Jing, Li Zhexin, Li Qiang
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表2 2个Fe水平下不同玉米杂交种性状
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Table 2 Seedling traits of different maize inbred lines at two Fe application levels
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性状 Trait | 处理 Treatment | 性状表现Performances of trait | | F | 均值 Mean | 最大值 Max | 最小值 Min | 变异系数 Coefficient of variation (%) | 低铁效应 Low Fe effect (%) | | 品种 Variety | Fe含量 Fe content | 品种×Fe含量 Variety×Fe content | PH (cm) | NFe | 34.06 | 42.30 | 27.60 | 11.36 | -14.01 | | 16.45** | 180.91** | 31.60** | | LFe | 29.29 | 42.30 | 20.17 | 18.27 | | | | | | SD (mm) | NFe | 5.04 | 6.21 | 4.00 | 10.71 | -12.90 | | 3.51** | 37.26** | 0.75ns | | LFe | 4.39 | 5.59 | 3.42 | 11.85 | | | | | | VL | NFe | 5.58 | 6.33 | 5.00 | 7.71 | -9.50 | | 5.88** | 108.38** | 2.91** | | LFe | 5.05 | 6.00 | 4.33 | 8.32 | | | | | | UL | NFe | 3.60 | 4.00 | 3.00 | 11.94 | -9.44 | | 8.04** | 54.45** | 2.53** | | LFe | 3.26 | 4.00 | 3.00 | 13.19 | | | | | | LA (cm2) | NFe | 133.09 | 187.84 | 91.51 | 22.59 | -25.96 | | 13.34** | 150.47** | 2.88** | | LFe | 98.54 | 165.38 | 57.02 | 34.39 | | | | | | SPAD | NFe | 40.83 | 46.30 | 35.73 | 6.34 | -28.83 | | 49.86** | 1 654.17** | 40.83** | | LFe | 29.06 | 42.53 | 9.30 | 36.85 | | | | | | RL (cm) | NFe | 25.79 | 32.03 | 13.50 | 15.66 | -24.00 | | 7.88** | 209.96** | 5.12** | | LFe | 19.60 | 31.70 | 11.23 | 23.72 | | | | | | TRL (cm) | NFe | 1 433.49 | 2 264.63 | 630.76 | 27.34 | -38.07 | | 18.79** | 395.78** | 3.57** | | LFe | 887.70 | 1 587.58 | 491.40 | 37.77 | | | | | | RTN | NFe | 3 466.52 | 6 194.33 | 1 386.33 | 26.37 | -42.04 | | 11.71** | 308.51** | 3.11** | | LFe | 2 009.11 | 4 157.00 | 836.00 | 43.62 | | | | | | RSA (cm2) | NFe | 272.18 | 412.12 | 138.73 | 27.33 | -32.63 | | 23.96** | 372.32** | 3.28** | | LFe | 183.37 | 318.21 | 95.97 | 32.78 | | | | | | RAD (cm) | NFe | 0.61 | 0.86 | 0.47 | 13.11 | 11.48 | | 6.54** | 47.43** | 3.03** | | LFe | 0.68 | 0.95 | 0.54 | 13.24 | | | | | | RV (cm3) | NFe | 4.17 | 8.33 | 2.38 | 30.46 | -26.14 | | 19.20** | 165.60** | 2.80** | | LFe | 3.08 | 5.38 | 1.52 | 31.49 | | | | | | RDW (g) | NFe | 0.27 | 0.46 | 0.14 | 25.93 | -29.63 | | 31.54** | 336.43** | 3.06** | | LFe | 0.19 | 0.37 | 0.11 | 31.58 | | | | | | SDW (g) | NFe | 1.10 | 1.95 | 0.66 | 27.27 | -33.64 | | 32.89** | 476.30** | 4.02** | | LFe | 0.73 | 1.61 | 0.36 | 39.73 | | | | | | PDW (g) | NFe | 1.37 | 2.34 | 0.87 | 26.28 | -32.85 | | 35.39** | 512.60** | 3.67** | | LFe | 0.92 | 1.91 | 0.50 | 36.96 | | | | | | R/S | NFe | 0.25 | 0.37 | 0.18 | 20.00 | 12.00 | | 16.70** | 65.32** | 10.95** | | LFe | 0.28 | 0.46 | 0.19 | 21.43 | | | | | |
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