春大豆根系生长与花荚形成的关系研究

来源 :干旱地区农业研究 | 被引量 : 0次 | 上传用户:sdwtb
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2013—2014年在新疆伊宁县科技示范园研究了中熟超高产大豆与高产品种(系)在根系伤流量、0~80 cm土层根干重等方面的差异及其与开花、结荚数的关系。结果表明:在开花、结荚期形成近80%根量,超高产品种(系)在花、荚期根系伤流量、0~80 cm土层总根干重、0~40 cm根系活性、总花数、总腔数均明显高于高产品种(系);花期根干重增量、伤流势与总花数的相关系数分别为0.970、0.898(P〈0.05),花荚期根干重增量、伤流势与总荚数的相关系数分别为0.905、0.77(P〈0.05);超高产品种(
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