种子大小对旱地小麦种子萌发、幼苗特性和抗旱性的影响
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黄明, 付鑫鑫, 张振旺, 张军, 李友军
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Effects of Seed Sizes on Seed Germination, Seedling Characteristics and Drought Resistance of Dryland Wheat
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Huang Ming, Fu Xinxin, Zhang Zhenwang, Zhang Jun, Li Youjun
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表2 种子大小对小麦幼苗根系特性的影响
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Table 2 Effect of seed size on root traits of wheat seedling
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指标 Index | 处理 Treatment | 天数 Days (d) | 洛旱6号Luohan 6 | | 洛旱22 Luohan 22 | Ⅰ | Ⅱ | Ⅲ | Ⅰ | Ⅱ | Ⅲ | 总根长 Total root length (cm) | T | 4 | 335.6±4.2Ab | 208.3±9.4Bb | 152.4±13.6Cb | | 289.5±20.4Ab | 190.8±12.7Bb | 128.0±16.4Cb | | 8 | 454.2±16.3Ab | 347.0±21.2Bb | 201.7±5.7Cb | | 417.6±13.0Ab | 299.6±22.6Bb | 212.6±5.7Ca | | CK | 4 | 557.4±8.4Aa | 406.9±4.9Ba | 314.2±12.6Ca | | 457.5±26.4Aa | 370.3±15.1Ba | 257.5±6.0Ca | | | 8 | 759.4±15.0Aa | 573.8±47.0Ba | 392.8±11.0Ca | | 558.8±23.7Aa | 462.2±18.5Ba | 291.5±47.3Ca | 总根表面积 Total root surface area (cm2) | T | 4 | 27.3±1.6Ab | 17.7±0.8Bb | 13.8±0.2Cb | | 28.6±2.3Ab | 16.7±0.6Bb | 10.2±1.3Cb | | 8 | 40.2±1.1Ab | 34.4±3.3Bb | 20.4±0.3Cb | | 39.9±4.1Aa | 28.6±3.0Ba | 21.1±1.0Ca | CK | 4 | 40.8±2.3Aa | 30.1±0.9Ba | 24.4±2.6Ca | | 33.9±0.6Aa | 28.0±0.7Ba | 20.7±1.7Ca | | | 8 | 56.0±5.1Aa | 45.0±4.2Ba | 30.2±1.8Ca | | 47.8±3.1Aa | 35.7±4.4Ba | 23.3±5.1Ca | 根直径 Root diameter (mm) | T | 4 | 0.32±0.03Aa | 0.30±0.03Aa | 0.28±0.01Aa | | 0.28±0.02Aa | 0.29±0.02Aa | 0.25±0.02Aa | | 8 | 0.33±0.00Aa | 0.30±0.01Ba | 0.27±0.01Ca | | 0.33±0.02Aa | 0.28±0.01Ba | 0.32±0.02Aa | | CK | 4 | 0.25±0.01Ab | 0.23±0.01Ab | 0.23±0.01Ab | | 0.26±0.00Aa | 0.26±0.01Aa | 0.23±0.01Ba | | | 8 | 0.23±0.02Ab | 0.25±0.01Ab | 0.23±0.00Ab | | 0.26±0.01Ab | 0.26±0.01Aa | 0.23±0.01Bb | 总根体积 Total root volume (cm3) | T | 4 | 0.18±0.03Aa | 0.13±0.02Ab | 0.13±0.03Aa | | 0.20±0.03Aa | 0.14±0.03Aa | 0.07±0.01Bb | | 8 | 0.29±0.00Ab | 0.25±0.01Ba | 0.16±0.01Ca | | 0.33±0.03Aa | 0.20±0.02Ba | 0.17±0.02Ba | | CK | 4 | 0.24±0.02Aa | 0.17±0.01Ba | 0.15±0.03Ba | | 0.20±0.02Aa | 0.15±0.02Ba | 0.15±0.02Ba | | | 8 | 0.36±0.02Aa | 0.28±0.03Ba | 0.19±0.02Ca | | 0.32±0.03Aa | 0.23±0.03Ba | 0.15±0.03Ca | 总根尖数Total root tips | T | 4 | 460.3±44.1Ab | 385.7±8.7ABb | 318.3±50.7Ba | | 445.0±77.5Ab | 292.7±38.0Bb | 230.3±30.2Bb | | | 8 | 1076.0±9.4Ab | 703.3±163.6Ba | 473.0±137.3Ba | | 1009.0±20.2Ab | 592.3±215.5Ba | 349.7±36.7Bb | | CK | 4 | 919.7±38.6Aa | 728.3±26.6Ba | 431.3±53.1Ca | | 725.3±56.6Aa | 611.7±26.2Aa | 460.3±58.0Ba | | | 8 | 1562.7±87.2Aa | 978.0±88.8Ba | 766.3±110.6Ba | | 1471.0±84.1Aa | 950.3±155.3Ba | 674.0±21.7Ca | 根分枝数 Number of root branches | T | 4 | 909.3±71.3Ab | 564.7±65.2Bb | 402.0±136.1Ba | | 656.3±32.2Ab | 467.3±73.7Bb | 399.0±55.1Ba | | 8 | 1849.3±49.8Aa | 1151.3±90.4Bb | 510.3±43.7Cb | | 1388.3±128.4Ab | 1172.7±105.8Aa | 659.7±115.6Ba | | CK | 4 | 1469.0±126.9Aa | 1010.3±7.6Ba | 606.3±62.5Ca | | 1150.0±122.5Aa | 805.0±66.6Ba | 490.7±57.2Ca | | | 8 | 2639.0±525.2Aa | 1915.0±316.1ABa | 1154.7±64.4Ba | | 1835.0±37.5Aa | 1485.7±247.2Aa | 829.3±110.8Ba |
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