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作物学报

作物学报 ›› 1984, Vol. 10 ›› Issue (03): 173-178.

• 研究论文 • 上一篇    下一篇

大豆品种根系的生态类型研究

田佩占   

  1. 吉林省农科院大豆研究所
  • 收稿日期:1984-01-06 修回日期:1984-05-09 出版日期:1984-09-12 网络出版日期:1984-09-12

ECOTYPES OF ROOT SYSTEM IN SOYBEAN CULTIVARS

Tian Peizhan   

  1. Institute of Soybean Research; Jilin Academy of Agricultural Sciences
  • Received:1984-01-06 Revised:1984-05-09 Published:1984-09-12 Published online:1984-09-12

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摘要： 1980和1982年观察了适于不同条件下种植的9个大豆品种的根系。结果表明,大豆初生根系与后生根系的相对差异是植株对土壤不同层次水分及养分利用的生态适应性状。品种间初生根数及后生根数的差异均较明显,但后生根的差异为初生根的四倍。其干重也有相似变化。根据这些差异可把大豆品种分为初生根型、后生根型和中间型3种类型。

Abstract: The root systems in nine cultivars were observed in 1980 and 1982.The experiment results indicated that the relative differences between pri-mary and secondary root were of ecological significance.Such differen-ces were significant for the obsorption of moisture and in different soildepth.The cultiv

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