Abstract: To investigate the adaptability of different kidney bean varieties (lines) in Northern Shanxi, this paper investigated the growth period, agronomic characters, economic characters and yield of 12 collected kidney bean varieties (lines) in Northern Shanxi, and evaluated their adaptability by principal component analysis. The results showed that kidney bean BY2015-1 could not mature in Northern Shanxi; however the other 11 varieties (lines) had better adaptability in Northern Shanxi. 9 characters of 11 kidney bean varieties (lines) were analyzed using principal component analysis. 3 principal component factors including production and plant type factor, growth period and pod length factor, and branch number factor were obtained. The total cumulative contribution rate reached to 86.054%. According to the principal component scores and composite score, 4 kidney bean varieties (lines) including Zhongyun 5, Long 12-2614, Zhongyun 4 and Zhongyun 6 were suitable for cultivation in Northern Shanxi. Variety Zhongyun 5 was the highest comprehensive scoring, and its yield was the highest. Cluster analysis showed that 11 varieties (lines) of kidney beans could be divided into two categories. Zhongyun 5, Long 12-2614, Zhongyun 4 and Zhongyun 6 were grouped together．This study provided new ideas and references for the evaluation and screening of kidney bean varieties (lines).

Key words: kidney bean, principal component analysis, adaptation, Northern Shanxi

摘要： 为分析不同芸豆品种（系）在晋北地区的适应性，在山西晋北地区，对引进的12个芸豆品种（系）的生育期、农艺性状、产量构成因素、产量等指标进行调查，运用主成分分析法对其适应性进行分析和评价。结果表明，供试的12个品种（系）中除BY2015-1无法在晋北地区成熟，其余11个品种（系）在晋北地区的适应性较好；对11个品种（系）的9个性状进行主成分分析，提取3个主成分因子，即产量与株型因子、生育期与荚长因子和分枝数因子，累积贡献率为86.054%；根据各品种（系）的主成分得分和综合得分，共筛选出4个适宜晋北地区种植的芸豆品种（系），分别为中芸5号、龙12-2614、中芸4号和中芸6号，其中中芸5号的综合得分最高，产量也最高；聚类分析表明，11个芸豆品种（系）可划分为两大类，其中中芸5号、龙12-2614、中芸4号和中芸6号聚为一类。结果为芸豆品种的评价和筛选提供了新的思路和方法。

关键词: 芸豆, 主成分分析, 适应性, 晋北地区