[Objective] The aim was to understand the correlative variance and adaptability of the main traits of soybean in the west semiarid region of Heilongjiang Province. [Method] Seventeen agronomic traits of ninety-three soybean varieties were analyzed with the method of correlation and cluster analysis. [ Result] The results showed that there was a significant correlation between yield and pods per plant, three-seed pods, four-seed pods, seeds per plant, 100-seed weight, oil content etc. Principal component analysis showed that the variance of the first six principal component contrihuted to above 80% , which explained the most biology traits, and principal 1,2,4 reflected the main yield relative traits, and principal 3,5,6 reflected the main quality relative traits. [ Conclusion ] The study provides a theoretical basis for choosing soybean hybridization parents and reasonably utilizing its resources.%[目的]为了掌握不同大豆(Glycine max)品种(系)主要农艺性状在黑龙江省西部半干旱地区环境下的相关变异及适应性.[方法]以93份大豆为材料,对大豆17个农艺性状进行了相关性和主成分分析.[结果]产量与单株有效英数、单株3粒英数、单株4粒英数、单株粒数、百粒重和脂肪含量等性状呈显著相关.主成分分析表明,前6个主成分的方差累计贡献率大于80％,可解释生物学性状的绝大部分信息,其中主成分1、2、4主要反映产量相关性状,主成分3、5、6主要反映品质相关性状.[结论]该研究可为大豆杂交亲本的选择和资源的利用提供理论依据.
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