水稻品种资源抗稻褐飞虱不同生物型和稻瘿蚊核心样品的研究  

Studies on core collection of rice germplasms which resistant to different rice brown planthopper biotypes and rice gall midge China type Ⅳ

作　　者：黄凤宽[1] 韦素美[1] 梁广文[2] 黄所生[1] 罗善昱[1] 李青[1] 

机构地区：[1]广西农业科学院植物保护研究所,广西南宁530007 [2]华南农业大学昆虫生态研究室,广东广州510642

出　　处：《广西农业生物科学》2004年第2期89-93,共5页Journal of Guangxi Agricultural and Biological Science

基　　金：国家"973"项目(G200016209);广西自然科学基金(桂科自0007002);广西青年科学基金(桂科青0339018);"十五"国家科技攻关计划(2001BA509B02-08)资助项目

摘　　要：以抗稻褐飞虱不同生物型和稻瘿蚊中国 型的水稻品种资源454份为试验材料,评价10个主要农艺性状,按不同的抗性情况和水平进行分组,应用聚类分析方法对每一组进行聚类,从聚成一类的品种中随机选取1份品种构成核心样品。核心样品由53个品种组成。通过对10个性状的6个特征值、多样性指数进行比较,核心样品基本代表了总样品的遗传变异范围。A total of 454 rice accessions which resistant to different rice brown planthopper biotypes and rice gall midge China type Ⅳ were used for evaluating ten main agronomic traits. The groups were divided according to grade of resistance. Ward cluster analysis method was applied to cluster accessions within each group. One accession per cluster was selected randomly to form core collection.Core collection was composed of 53 accessions. Representational tests showed that core collection covered genetic diversity of the whole collection by comparison of 6 values including Max,Min,Range,Mean,SD,CV,index of diversity(ID) of ten characters analyzed.

关 键 词：水稻 品种资源 稻褐飞虱 生物型 稻瘿蚊 核心样品 农艺性状 遗传变异 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治] S435[农业科学—植物保护]