贵州农业科学2026，Vol.54Issue(4)：47-54,8.DOI:10.3969/j.issn.1001-3601.2026.04.006
基于主成分分析的辣椒新品种引进评价
Evaluation of Introduced New Pepper Varieties Based on Principal Component Analysis
摘要
Abstract
[Objective]New pepper varieties suitable for cultivation in Fuquan City were selected to provide a scientific basis for popularization and cultivation of pepper in Fuquan City,Guizhou.[Method]The agronomic traits of 13 pepper varieties newly bred by Guizhou Pepper Research Institute were determined and comprehensively evaluated by PCA and clustering analysis.[Result]The average variable coefficient of pepper agronomic traits was 22.41%,which indicated there was rich in variation of different agronomic traits.The variable coefficient of stem diameter and single fruit weight was 10.16%(the minimum)and 40.14%(the maximum)respectively.There were significant differences in correlations between different agronomic traits of pepper,of which,yield per plant and yield/667m2 were positively related to stem diameter and single fruit weight very significantly,positively related to fruit width and flesh thickness significantly,negatively related to plant height and first flower position significantly and very significantly,and not related to bearing fruit number.The PCA showed that all agronomic traits were divided into 3 principal components with 83.02%accumulative contribution rate.Stem diameter,fruit width,flesh thickness and single fruit weight were the key indexes affecting pepper yield.The comprehensive score of Layan 903,Layan 904,Layan 905 and Layan 901 was 2.97,0.73,0.70 and-1.48 respectively.13 tested pepper varieties were divided into 4 groups.Layan 903 and Layan 901 belonged to GroupⅠand Group Ⅱseparately.Layan 911,Layan 912 and Layan 913 belonged to Group Ⅲ.Layan 910,Layan 801,Layan 909,Layan 904,Layan 908,Layan 907,Layan 902 and Layan 905 belonged to Group Ⅳ.[Conclusion]Layan 903,Layan 904 and Layan 905 with a higher comprehensive score are suitable for popularization and cultivation in Fuquan City,Guizhou.关键词
辣椒/品种引进/农艺性状/产量/主成分分析/综合评价/福泉Key words
pepper/variety introduction/agronomic trait/yield/principal component analysis(PCA)/compre-hensive evaluation/Fuquan分类
农业科技引用本文复制引用
杨娅,范高领,黄冬福,王楠艺,袁圆,何建文..基于主成分分析的辣椒新品种引进评价[J].贵州农业科学,2026,54(4):47-54,8.基金项目
贵州省农业科学院一般基金(黔农科一般基金[2025]10) （黔农科一般基金[2025]10）
贵州省山地农业关键核心技术攻关项目(GZNYGJHX-2023008)(GZNYGJHX-2024008) （GZNYGJHX-2023008）
贵州省辣椒产业技术体系(GZSLJCYJSTX) （GZSLJCYJSTX）
