小豆种质资源农艺性状综合鉴定与评价  

Evaluation in Agronomic Traits of Adzuki Bean Accessions

作　　者：白鹏[1] 程须珍[1] 王丽侠[1] 王素华[1] 陈红霖[1] 

机构地区：[1]中国农业科学院作物科学研究所,北京100081

出　　处：《植物遗传资源学报》2014年第6期1209-1215,共7页Journal of Plant Genetic Resources

基　　金：国家食用豆产业技术体系建设项目(CARS-09);国家公益性行业(农业)科研专项经费(nyhyzx07-017);农作物种质资源保护(NB04-07);中国农业科学院科技创新工程

摘　　要：通过田间观测和室内分析,对来自全国各生态区的262份小豆优异种质资源连续2年进行了农艺性状鉴定及综合评价。结果表明:262份小豆微核心种质资源在考察的16个形态学性状中均具有丰富的遗传变异类型;不同年份间生态环境尤其是光照条件对小豆农艺性状影响较大;主成分分析确定了3类影响因子,表明小豆资源的选育要集中在生长势良好(生育日数较短、株高较矮),单株荚数和单荚粒数多的地方品种;聚类分析结果显示在相似系数为0.40时可将参试材料分为5大类群,各类群间性状差异明显;群体性状表现与地理来源之间没有直接的关系。262 accessions of adzuki bean from different ecological regions have been evaluated in the experimental field of Beijing for two years.The results indicated that the 16 morphology traits of 262 adzuki bean germplasm had extensive genetic variation types.The ecological environment,especially the lighting conditions in different years had a great effect on the agronomic traits.The main agronomic characters of adzuki bean varieties which showed notability difference were investigated with principal components analysis.Three common factors in every class were calculated.The results demonstrated that the adzuki bean breeding should focus on the local varieties,which had a better growth potential（short growth period and scrubby plant height） and a further more pods and seeds.Cluster analysis showed that 262 representative landraces could be classified into 5 groups with a genetic similarity coefficient as 0.40.Each group had different characteristics and showed abundant genetic diversity.There was no obvious evidence that the groups had direct relationship with the origins of accessions.

关 键 词：小豆 性状鉴定 主成分分析 聚类分析 

分 类 号：S521[农业科学—作物学]