中国蔬菜Issue(7)：33-41,9.DOI:10.19928/j.cnki.1000-6346.2024.2013
辣椒种质资源农艺性状综合评价
Comprehensive Evaluation of Agronomic Traits of Pepper Germplasm Resources
摘要
Abstract
This study used 273 chilli pepper germplasm resources as materials and employed coefficient of variation,diversity index,correlation,principal component and cluster analyses to evaluate the main agronomic traits of peppers.The results showed that the average coefficient of variation for 17 important agronomic traits in 273 chili pepper germplasm resources was 19.99％-107.16％.The difference in single fruit weight between the materials is the largest,with a coefficient of variation of 107.16％.The diversity index for fruit number per plant was the highest,with a value of 1.97.There is a high correlation between the 13 main agronomic traits.The main factors affecting the variation of chili pepper traits are fruit transverse diameter,the shape of fruit top,placenta size,and green ripe fruit color.Principal component analysis of 13 major agronomic traits into 4 principal components,with a cumulative contribution rate of 59.92％,which respectively reflected fruit transverse diameter,the shape of fruit top,placenta size,and green ripe fruit color.This study obtained the top 10 chili pepper germplasm materials through comprehensive score.The top three chili pepper germplasm resources in the rankings are thin skinned peppers T302,T281,and T301 from Yunnan.Their fruit number per plant,single fruit weight,the longitudinal diameter and transverse diameter of fruits are all relatively high.Cluster analysis divided 273 chili pepper germplasm materials into 4 groups,effectively distinguishing different chili pepper materials.关键词
辣椒/种质资源/相关性分析/主成分分析/聚类分析/综合评价Key words
pepper/germplasm resource/correlation analysis/principal component analysis/cluster analysis/comprehensive evaluation引用本文复制引用
洪成,赵建荣,程春园,郑婉婉,耿三省,陈斌,杜和山,张晓芬..辣椒种质资源农艺性状综合评价[J].中国蔬菜,2024,(7):33-41,9.基金项目
北京市农林科学院科技创新能力建设专项重大专项(KJCX20230813),北京市联合攻关项目(G20220628003-01),国家重点研发计划项目(2023YED120000502),国家自然科学基金面上项目(32072566) （KJCX20230813）
