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将辽宁省 1990年以后育成并审定的大豆品种称为新品种 ,1989年以前育成审定的称为老品种。对新老大豆品种主要农艺性状进行了比较研究 ,通过分析 14个主要农艺性状的遗传参数 ,研究其遗传变异度。结果表明 ,新老品种的产量以及与产量相关的主要农艺性状存在很大差异 ,差异较大的是分枝荚数 ,其次是 3粒荚数、单株荚数、单株粒重。新品种比老品种在籽粒抗病虫性方面有了较大的改进。
The Liaoning Province after 1990 bred and approved of the soybean varieties known as new varieties, bred before 1989 known as the old varieties. The main agronomic traits of old and new soybean varieties were compared. The genetic variation of 14 major agronomic traits was analyzed by analyzing the genetic parameters. The results showed that the yield of new and old varieties and yield-related major agronomic traits are quite different, the difference is larger branches pods, followed by 3 pods, pods per plant, grain weight per plant. New varieties than the old varieties in the grain resistance to pests and diseases have been greatly improved.