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

摘要

[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 cultivars 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. [Conclusion] The result has practical significance for setting the goals of breeding or improving soybean varieties.