热带亚热带优质蛋白玉米自交系与温带普通玉米自交系产量配合力研究  

Analysis of Yield Combining Ability of Subtropical Tropical Quality Protein Maize Inbred Line and Temperate Normal Maize Inbred Line

作　　者：番兴明[1] 陈洪梅[1] 谭静[1] 刘峰[2] 韩学瑞 黄云霄[1] 段智利[1] 

机构地区：[1]云南省农业科学院粮食作物研究所,昆明650205 [2]云南省保山市农业科学研究所,云南保山678000 [3]云南省曲靖市农业科学研究所,云南曲靖655000

出　　处：《玉米科学》2006年第1期12-15,32,共5页Journal of Maize Sciences

基　　金：云南省自然科学基金资助项目(2004C0011Z)

摘　　要：采用NCⅡ设计对4个热带亚热带优质蛋白玉米(QPM)自交系和10个温带普通玉米优良自交系配制杂交组合,将组合在云南省3种不同生态环境下进行产量鉴定,以分析这些自交系的配合力,并研究热带亚热带QPM自交系与温带普通玉米自交系间的遗传关系。方差分析表明,地点和组合×地点方差达极显著水平,杂交组合、QPM自交系(P1)和普通玉米自交系(P2)的产量GCA方差以及P1×P2的产量SCA方差达极显著水平。配合力分析结果表明,多数自交系在昆明、保山、曲靖3种不同生态环境下产量GCA、SCA表现差异较大,表明产量GCA、SCA与环境存在互作。产量SCA效应值与产量简单相关分析表明,特殊配合力在产量形成中的作用较小。根据产量SCA相对值,结合自交系系谱来源,分析P1和P2之间遗传关系,结果表明,自交系LX9801、掖107与CML166遗传关系较近;K12、97P-69、97P-64与CML171和CML161遗传关系较近;陕五2134、H84-89-1、K22、云147、90211与CML194遗传关系较近。Four subtropical tropical quality protein maize（QPM） inbred lines were crossed with 10 temperate normal elite maize inbred lines by NC Ⅱ mating design in the study. The 40 crosses were evaluated in three different environments in Yunnan province for grain yield. The objective of this study was to determine combining ability and genetic relationship between subtropical tropical quality protein maize inbred lines and temperate normal maize inbred lines. Combined analysis of variance for grain yield showed that highly significant differences existed among en- vironments, crosses and the interaction between crosses and environments. Differences of general combining ability（GCA） effects of QPM inbred lines（P1）, normal inbred lines（P2） and of special combining ability（SCA） effects of P1 × P2 were highly significant（P ≤0.01）. The combining ability effects of most inbred lines obtained from each environment were great different. Correlated analysis of SCA with grain yield showed that the contribution of yield SCA was not significant. Based on SCA effects and the known pedigree data. It could be concluded that the genetic relationships between LX9801, Yel07 and CMLI66, between K12, 97P-69, 97P-64 and CML161, CML171, between Shanwu2134, H84-89-1, K22, Yun147, 90211 and CML194 were close.

关 键 词：优质蛋白玉米 普通玉米 自交系 配合力 遗传关系 

分 类 号：S513.024[农业科学—作物学]