基因型 | 最长根长/cm | 平均直径/mm | 根系体积/cm3 | 根系表面积/cm2 | 根系干重/g | 根尖数 | 根冠比 |
正常供磷 |
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矮选 | 40.7 ± 2.79 ab | 1.04 ± 0.15 a | 3.47 ± 1.05 b | 128.27 ± 20.55 b | 0.22 ± 0.08 b | 474 ± 65.55 b | 0.29 ± 0.02 ab |
晋豆23号 | 43.2 ± 1.15 ab | 0.91 ± 0.12 ab | 3.19 ± 0.69 bc | 137.82 ± 11.58 b | 0.28 ± 0.10 b | 595 ± 47.16 b | 0.40 ± 0.01 a |
滇86-4 | 48.3 ± 5.09 a | 1.10 ± 0.05 a | 6.94 ± 0.25 a | 253.56 ± 9.92 a | 0.57 ± 0.07 a | 1017 ± 119.48 a | 0.38 ± 0.07 a |
川豆14 | 32.8 ± 2.46 b | 0.61 ± 0.05 b | 1.19 ± 0.08 c | 78.43 ± 4.80 c | 0.10 ± 0.01 b | 487 ± 84.05 b | 0.24 ± 0.01 b |
低磷胁迫 |
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矮选 | 28.3 ± 7.36 a | 0.64 ± 0.02 b | 0.74 ± 0.17 b | 46.09 ± 9.80 bc | 0.05 ± 0.01 c | 358 ± 30.73 a | 0.28 ± 0.02 a |
晋豆23号 | 42.5 ± 7.15 a | 0.69 ± 0.02 b | 1.78 ± 0.45 b | 101.64 ± 24.32 ab | 0.15 ± 0.05 b | 531 ± 164.14 a | 0.25 ± 0.04 ab |
滇86-4 | 38.9 ± 1.73 a | 0.93 ± 0.08 a | 3.38 ± 0.40 a | 144.48 ± 4.28 a | 0.28 ± 0.02 a | 651 ± 63.50 a | 0.29 ± 0.01 a |
川豆14 | 31.8 ± 2.57 a | 0.78 ± 0.07 ab | 1.25 ± 0.06 b | 65.03 ± 4.53 c | 0.10 ± 0.01 bc | 465 ± 21.67 a | 0.23 ± 0.02 b |