摘要
为了探究海南地方小米椒种质资源表型多样性情况,利用35个表型性状观测,对31份海南小米椒种质资源进行了评价与分析。结果表明,13个数量性状变异系数范围为5%~59%,多样性指数范围为0.67~5.26,22个质量性状中,19个性状在不同水平上的百分比分布不均匀。变异系数方面,除了叶片宽、果心室数外,其他数量性状较低。多样性指数方面,除果实心室数外,其余各资源性状均达到较丰富的遗传多样性。聚类分析方面,海南小米椒被分为两类,类别1在主茎粗和叶片宽度上表现突出,类别2在单果重、果长和结果量等方面优于类别1。相关性分析方面,性状之间相关性达显著和极显著水平较多,相关系数的绝对值超过0.5,且显著性达到极显著的性状达11对。
In order to explore the phenotypic diversity of germplasm resources of Capsicum annuum'Xiaomijiao'landraces from Hainan,35 phenotypic trait observations were used to evaluate and analyze 31 Capsicum annuum'Xiaomijiao'germplasm resources in Hainan.The results showed that the coefficient of variation of the 13 quantitative traits ranged from 5%to 59%,and the diversity index ranged from 0.67 to 5.26.Among the 22 quality traits,the percentage distribution of 19 traits was uneven at different levels.In terms of the coefficient of variation,except for leaf width and the number of fruit chambers,other quantitative traits were relatively low.In terms of the diversity index,except for the number of fruit ventricles,all other resource traits had achieved relatively rich genetic diversity.In terms of cluster analysis,Capsicum annuum'Xiaomijiao'landraces from Hainan were divided into two categories.Category 1 stood out in terms of main stem thickness and leaf width,while Category 2 outperformed Category 1 in terms of single fruit weight,fruit length and fruit yield.In terms of correlation analysis,the correlations between traits reached significant and extremely significant levels more frequently.There were 11 pairs of traits with an absolute value of the correlation coefficient exceeding 0.5 and extremely significant significance.
作者
周泽
伍壮生
高芳华
王小娟
吴月燕
史大伟
李雪峤
ZHOU Ze;WU Zhuangsheng;GAO Fanghua;WANG Xiaojuan;WU Yueyan;SHI Dawei;LI Xueqiao(Vegetable Research Institute,Hainan Academy of Agricultural Sciences/Hainan Provincial Engineering Research Center for Melon and Vegetable Breeding/Hainan Key Laboratory of Vegetable Biology,Haikou 571100,China;The Agricultural and Forestry Management Office of China Railway Harbin Bureau Group Co.,Ltd.,Harbin 150076,China)
出处
《种子》
北大核心
2025年第4期197-203,共7页
Seed
基金
海南省院士创新平台科研专项(YSPTZX202136)
海南省农业科学院蔬菜研究所所级统筹科研项目(HAAS2024SJTCSCS23)
海南省蔬菜生物学重点实验室开放课题(HAAS2024SJTCSCS41)。
关键词
海南小米椒
表型鉴定
遗传多样性
Capsicum annuum'Xiaomijiao'landraces from Hainan
phenotypic identification
genetic diversity
