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本文应用主成分分析法对１０９份引进棉花品种开源的１９个数量性状进行分析，结果前７个主成分对变异的贡献率达８６．７％；从中选择９个综合性状进行系统聚类，１０９份资源被分为二十类，其中Ｃ（尤其ＣⅠ①和ＣⅡ②亚亚类）、Ｅ、Ｌ、Ｐ四类的综合性能较好，且遗传距离较大，在这四类间选亲本杂交成功率较高，且工作量仅为盲目配制组合的８．１７％。本文还就杂交亲本选配的有关问题进行了初步探讨。
In this paper, principal component analysis was used to analyze the open-sourced 19 quantitative traits of 109 introduced cotton varieties. The results showed that the former seven principal components contributed 86.7% of the variance to the variance. Nine comprehensive traits were selected for systematic clustering, 109 Among them, C (especially CⅠ① and CⅡ②), E, L and P have better overall performance and higher genetic distance, and the success rate of the parents Higher, and the workload is only 8.17% of the blind preparation of the combination. This article also carried out a preliminary discussion on the related issues of hybrid parents matching.