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对不同来源陆地棉20个品种（系）在新疆特定生态条件下的13个性状进行了主成分分析。结果表明：纤维品质因子、产量因子、单铃重因子、衣分因子、第一果技高度因子对变异的累计贡献率达84．3％，对20份材料的聚类分析结果表明：晋棉12号、中棉所25号、晋棉19号和中棉所19号等可划分为第一类；布哈拉6号、吉尔吉斯3号和新陆中5号等可划分为第二类；中棉所17号、新陆中2号和爱SJ－5等可划分为第三类。
Principal component analysis (PCA) of 13 traits of 20 cultivars (lines) of G. hirsutum from different origins in Xinjiang was carried out under specific ecological conditions. The results showed that the cumulative contribution rate of fiber quality factor, yield factor, single boll weight factor, lint factor and first fruit height factor to variance was 84.3%. The clustering analysis of 20 materials showed that Jinjin No. 12, No. 25 Cotton Plant, No. 19 Cotton Plant, No. 19 Cotton Plant, etc. can be classified into the first type; Bukhara No. 6, Kyrgyzstan No. 3 and Xinluzhong No. 5 can be classified into the second type; CIMC No. 17, the new land in the No. 2 and love SJ-5 can be divided into the third category.