24个优质蛋白玉米自交系与中国温带玉米四大优势群代表自交系的配合力和杂种优势群研究吴健聪1，徐春霞2，陈洪梅2，谭静2，韩学瑞3，黄必华4，番兴明2（1云南农业大学农学与生物技术学院，昆明650201；2云南省农业科学院粮食作物研究所，昆明650205；3云南省曲靖市农业科学研究所，曲靖655000；4云南省德宏州农业科学研究所，德宏678400）摘要：【目的】研究QPM种质与我国中国温带种质之间的杂种优势关系并划分杂种优势群。【方法】采用NCⅡ设计对24个热带、亚热带优质蛋白玉米（QPM）自交系和4个温带普通玉米优良自交系配制96个杂交组合，在云南省3种不同生态环境下对这些杂交组合进行农艺性状和产量配合力分析，评价群体的应用价值和利用潜力，再根据产量特殊配合力效应和系谱追踪划分杂种优势群。【结果】自交系YML761、CML171、CML172、中系096/o2、YML411、YML024和YML042产量一般配合力较高。产量SCA效应较高的组合有YML401×黄早四、CML172×Mo17、YML761×掖478、长709/o2×Mo17、H152×丹340、中系096/o2×掖478和YML872×Mo17。【结论】自交系YML761、CML171、CML172、中系096/o2、YML411、YML024和YML042在生产中有较大的利用价值。YML411、YML042、CA307、YML065和YML401归入Lancaster群；CML165、CML166、YML761、中系096/o2、长631/o2、YML011、YML872归入旅大红骨群；CML171、CML161、CML172、齐205、CA10139、YML330、8129归入四平头群，CML163、CML170、H152、长709/o2和YML024归入Reid群。本研究结果与系谱分析及前人的研究基本一致。关键词：优质蛋白玉米;自交系;配合力;杂种优势群StudiesonCombiningabilityAbilityandHeteroticGroupingof24QualityProteinMaizeInbredsandFourTemperateRepresentingRepresentativeInbredsofChineseMajorHeteroticGroupsWU激an-cong1,XUChun-xia2,CHENHong-mei2,TAN激ng2,HANXue-rui3,HUANGBiBi-Hhua4,FANXing-ming2(1CollegeofAgronomyandBiotechnology,YunnnanAgricultureUniversity,Kunming650201;2InstituteofFoodCrops,YunnanAcademyofAgriculturalSciences,Kunming650205;3Qu激ngAgriculturalInstitute,Qu激ng655000;4DehoongAgriculturalInstitute,Dehong678400)Abstract:【Objective】Theobjectiveofthisstudywastodeterminecombiningabilitybetweenqualityproteinmaizeinbredsandtemperatenormalmaizeinbreds.【Method】24qualityproteinmaize(QPM)inbredswerecrossedwith4fourtemperatenormalelitemaizeinbreds,whichrepresents4fourmajorheteroticgroupsinChina,byNCⅡmatingdesigninthestudy.GrainyieldofThe96crosseswereevaluatedinthreedifferentenvironmentsinYunnanprovinceforgrainyield.【Result】Theresultsindicatedobservedthatahighyieldgeneralcombiningability(GCA)oftheinbredlinesYML761,CML171,CML172,Zhongxi096/o2,YML411,YML024andYML042havebeenobserved.ThecrosseswithhighlypositiveSCAeffectvaluesforyieldperplantwere---本文于网络，仅供参考，勿照抄，如有侵权请联系删除---YML401×Huangzaosi,CML172×Mo17,YML761×Ye478,Chang709/o2×Mo17,H152×Dan340,Zhongxi096/o2×Ye478和YML872×Mo17.【Conclusion】TheinbredlinesYML761,CML171,CML172,Zhongxi096/o2,YML411,YML024andYML042willbepredominantlinesinmaizebreedingandcommercialproductioninChina.24Inbredlineswereclassifiedintofourheteroticgroup,i.e.Lancaster(YML411,YML042,CA307,YML065andYML401),Lvdahonggu(CML165,CML166,YML761,Zhongxi096/o2,Chang631/o2,YML011andYML872),Tangsipingtou(CML171,CML161,CML172,Qi205,CA10139,YML330,8129)andReid(CML163,CML170,H152,Chang709/o2andYML024).Theresultcoincidedwithotherspartiallyshowedpartialconsistencywithpreviousresearchresultfs.Keywords:Qualityproteinmaize;Inbreds;Combiningability;Geneticrelationship0引言【研究意义】中国优质蛋白玉米（QPM）研究始于20世纪70年代，在解决优质和高产方面已取得了很大进展，但近几年中国...