| 水分胁迫对不同基因型夏大豆冠层发育及耗水量的影响 |
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| 引用本文： | 董志强,贾秀领,张丽华,马瑞昆,姚艳荣,赵双进,张孟臣.水分胁迫对不同基因型夏大豆冠层发育及耗水量的影响[J].大豆科学,2009,28(5). |
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| 作者姓名： | 董志强 贾秀领 张丽华 马瑞昆 姚艳荣 赵双进 张孟臣 |
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| 作者单位： | 河北省农林科学院粮油作物研究所,国家大豆改良中心石家庄分中心,河北,石家庄,050031 |
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| 基金项目： | 国家科技支撑计划资助项目 |
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| 摘 要： | 在防雨棚条件下研究了不同阶段水分胁迫对4个夏大豆品种五星3号、冀豆15、冀豆16和冀豆17冠层发育和耗水特性影响.结果表明:大豆耗水规律为出苗后20 d内日耗水强度较低,初花期～鼓粒初期较高,最高峰出现在初花期前后,鼓粒中后期较低.最大叶面积指数(LAI)出现在盛花期,不同阶段水分胁迫使多数品种的LAI明显下降.从冠层发育角度,冀豆16苗期抗旱性较强,五星3号花期和鼓粒期抗旱性较强,冀豆15鼓粒期抗旱性较强.五星3号、冀豆15和冀豆16的LAI相近,但五星3号的耗水量较低,冀豆17 LAI和耗水量均较高.大豆主要耗水层在0～100 cm,尤其0～50 cm土层土壤水分状况对大豆的生长发育影响效应更大.
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| 关 键 词： | 夏大豆 基因型 耗水 叶面积系数 |
Effects of Drought Stress on Water Consumption and Canopy Development in Four Summer Soybean Genotypes |
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| DONG Zhi-qiang,JIA Xiu-ling,ZHANG Li-hua,MA Rui-kun,YAO Yan-rong,ZHAO Shuang-jin,ZHANG Meng-chen.Effects of Drought Stress on Water Consumption and Canopy Development in Four Summer Soybean Genotypes[J].Soybean Science,2009,28(5). |
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| Authors: | DONG Zhi-qiang JIA Xiu-ling ZHANG Li-hua MA Rui-kun YAO Yan-rong ZHAO Shuang-jin ZHANG Meng-chen |
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| Institution: | DONG Zhi-qiang,JIA Xiu-ling,ZHANG Li-hua,MA Rui-kun,YAO Yan-rong,ZHAO Shuang-jin,ZHANG Meng-chen(Institute of Cereal , Oil Crops,Hebei Academy of Agricultural , Forestry Sciences,National Soybean Improvement Center Shijiazhuang Sub-Center,Shijiazhuang 050031,Hebei,China) |
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| Abstract: | Effects of drought stress on water consumption and canopy development in four summer soybean genotypes of Wuxing 3,Jidou 15,Jidou 16 and Jidou 17 were studied under rain shelter condition.The results showed daily water consumption was lower within the 20 d after seedling,much higher daily water consumption was observed from early flowering to early pod filling,with a peak around early flowering.The maximum of leaf area index(LAI) occurred at full flowering.Periodical drought stress led to reduced LAI in mos... |
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| Keywords: | Summer soybean Genotypes Water consumption Leaf area index(LAI) |
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