超早熟大豆品系(种)产量与主要农艺性状的灰色关联度分析

Grey Relational Grade Analysis of Yield and Main Agronomic Characters of Ultra -early Maturing Soybean Varieties

[目的]研究新疆超早熟大豆品系(种)产量与主要农艺性状的关系,为新疆超早熟大豆新品种选育和品种改良提供参考。[方法]采用灰色关联度分析法,对16个超早熟大豆品系(种)的产量及主要农艺性状进行分析。[结果]产量与主要农艺性状的关联度由大到小排序为:单株粒重>株高>单株粒数>单株有效荚数>有效分枝>结荚高度>主茎节数>百粒重。[结论]单株粒重、株高、单株粒数、单株有效荚数是影响北疆超早熟大豆产量的重要因素,研究对高产、优质的超早熟大豆选育具有实际意义。

[ Objective ] This paper aims to study the correlation between the yield of the main soybean eultivars of earlier - maturing soybean varieties in Xinjiang, and their yield traits so as to provide a reference index for breeding or improving new varieties. [ Method] The yield and agronomic characters of 16 soybean varieties were analyzed by using the grey relational grade analysis methods. [ Result] The results showed that major agronomic characters related to yield were in following sequence：seed weight per plant 〉 plant height 〉 seed number per plant 〉 pod number per plant 〉 effective branch number 〉 height of lowest pod 〉 main stem node 〉 100 -seed weight number. [ Conchlsion] The result has practical significance for setting the goals of breeding or improving soybean varieties.