中国农业科技导报2024，Vol.26Issue(3)：40-47,8.DOI:10.13304/j.nykjdb.2023.0867
60份螺丝椒种质资源农艺性状的遗传多样性分析
Analysis of Agronomic Traits and Genetic Diversity of 60 Screw Pepper Germplasm Resources
摘要
Abstract
In order to further improve germplasm and breed new screw pepper,60 screw pepper germplasm materials through many years of selfing and homozygosity by the pepper team of Horticulture of College,Shanxi Agricultural University were as materials.The main agronomic traits were investigated and then the hereditary diversity,correlation analyais,principal component analysis(PCA)and clustering analysis were conducted.The results showed that the 1 1 agronomic traits had different degrees of variation,the coefficient of variation varied from 10.52％to 58.07％,with an average of 32.04％.The coefficient of variation of the fruit number per plant was the highest(58.07％),and the coefficient of variation of the longitudinal diameter of fruit was the lowest(10.52％).The correlation analysis showed that there were extremely significant positive correlations between plant height and plant span,between transverse diameter of fruit and pulp thickness,weight per fruit,between weight per fruit and ventricular number,pulp thickness,and there were significant positive correlations between transverse diameter of fruit and ventricular number.There were extremely significant negative correlations between longitudinal diameter of fruit and ventricular number,between fruits number per plant and pulp thickness,transverse diameter of fruit,weight per fruit,and there were significant negative correlations between fruits number per plant and ventricular number.Based on 1 1 agronomic traits,the principal component analysis got 4 principal components whose cumulative contribution rate was 70.628％;the cluster analysis divided 60 germplasms into 5 categories by Euclidean distance 5.Above results provided a basis for the utilization of germplasm resources and the breeding of screw pepper varieties suitable for market demand.关键词
螺丝椒/遗传多样性/种质资源/农艺性状Key words
screw pepper/genetic diversity/germplasm resource/agronomic traits分类
农业科技引用本文复制引用
孔子雯,田如霞,苗如意,梁燕平..60份螺丝椒种质资源农艺性状的遗传多样性分析[J].中国农业科技导报,2024,26(3):40-47,8.基金项目
山西省重点研发计划项目(202202140601006) （202202140601006）
山西农业大学生物育种工程项目(YZGC120) （YZGC120）
山西省科技创新人才团队专项计划项目(202304051001018). （202304051001018）
