曲厉农止学报SouthwestChinaJournalofAgriculiuralSciences文章编号：1001-4829(2010)05-1397-06四川及南亚水稻恢复系的类群比较及典型品种分析曾宪平吕建群I,陈林1，岑烬2,戴怀根2(1.四川省农科院作物研究所，四川成都610066；2.新津县农村发展局，四川新津611430)摘要：本研究将以四川地区为主的水稻恢复系和以印度为主的南亚水稻恢复系与四川及南亚的3个主耍不育系进行杂交配组，通过其儿的农艺性状主成分聚类、对比分析和片产走优势的分析。结果表明：①在类群1中，四川区城的亲本占71.4%,类奇II中，南亚品种占63.4%。②四种分类方法中都聚在同一类的品种：类群】有24个品种，全部来自四川区域；类群II有17个品种，只有一个(DH1)是来自四川区域，其它16个均来自南亚区城。它们的特征特性能反映出两个类群的基本特点。③类群1的性状均值有10个大于类群II,有5个小干类群II。④两个类群的共同特点是：第一、第二主成分分量中，穗粒数和谷粒长宽比都起主导作用。不同之点是：群类I的第一主成分分量中，粒重与粒数共屁起了主导作用，而类群II则只有粒数因子起了主导作用；屁样,群类I的第二主成分分量中，穗长与谷粒长宽比共同起了主导作用，而类群II也只有粒形因子起了主导作用。⑤类群1与G46A和II・32A所配组合F,的产量优势大于与IK58025A所配的F\组合；同样，类群II与1R58025A所配组合F,的产量优势大于与G46A和I1-32A所配的F,组合。关键词：四川区域；南亚区城；农艺性状；产量优势；主成分分析；水稻恢复系中图分类号：S511.2*1；S511.3*2；5511.4*1文献标识码：AGroupsComparisonofRiceRestorerLinesinSichuanandSouthAsiaandTypicalVarietiesAnalysisfZENGXian-ping1,LVJian-qun1,CHENUn1tCENJin2fDAIHuai-gen2(1.CropResearchInstitute,SichuanAcademyofAgriculturalSciences,SichuanChengdu610066,China；2・XinjinRuralDevelopmentBureau9SichuanXinjin6114309China)Abstract：ThedatascollectedfromhybridricerestorerlinesmainlydevelopedinSichuanandIndiaofSouthAsiacrossedwith3majormalesterilelinesdevelopedinSichuanandSouthAsiawerecompanHivelyanalyzedbyclusteringanalysisofprincipalcomponentsofF,agronomictraits9relativeanalysisandyieldheterosisanalysisforF)tresjiectivclyttheresultindicatedthat:(i)71.4%parentswerefromSichuanregioningroup19and63.4%parentswerefronitheSouthAsianregioningroup11.(ii)24varietiesdcvclojietlinSichuanwereclusteredinthesamegroupsasgroup1by4classificationmethodsand17varietiesfromSouthAsiaexceptI)H1ingroupII9andtheircharacteristicscouldreflectthebasicfeaturesof2groups.(iii)10traitsmeanvalueingroupIweremorethanthatofgroupIltandother5traitsmeanvaluewerelessthanthatofgroupII.(iv)Thecommoncharacterin2groupswasthatthepanicleandgrainnumberandgrainlength/widthratioplayedleadingroleinthefirutandsecondprincipalcomponentsftheirdifferencewasthatingroup1grainweightandgrainnumberplayedleadingroletogetherinthefiratprincipalcomponent,butthatonlygrainnumberingroupIi.Aswell,paniclelengthandgrainlength/widthratioplayedleadingroletogetherinthesecondprincipalcomponentingroup1andthatonlygraintypeingroupII.(V)八yieldheterosisofgroup1crossedwithG46Aand11-32AwasmorethanthutcrossedwithIK58025A.Meanwhile,F,yieldheterosisofgroup11crossedwithIK58025AwasmorethanthatcrossedwithG46AandII-32A.Keywords：Sichuan；SouthAsia；Agronomiccharacters;Yieldheterosis；Principalcomponentanalysis；Hybridricerestorer2010年23卷5期Vol23No.5国外水稻资源的引进和利用研究对我国杂交收稿日期:2010-06-30基金项目：四川省财政育种工程专顼资金项冃(2007YZGC04-009);四川省科技计划国际合作项目(20071112918)作者简介：曾宪平(1959・)•男，研究员■从审水稻遗传育种工作.Tcl：028-854042391E-mail:xianpingz©yahoo.como水稻产生了不可估fit的重大影响(，'2Jo亚洲水稻...