CIMMYT亚热带优质蛋白玉米自交系的配合力和杂种优势群分析  

Combining Ability and Heterotic Grouping of CIMMYT Subtropical Quality Protein Maize Lines

作　　者：李明顺[1] 张世煌[1] 潘光堂[2] 李新海[1] 夏先春[1] 田清震[1] 白丽[1] 

机构地区：[1]中国农业科学院作物育种栽培研究所/农业部作物遗传育种重点实验室,北京100081 [2]四川农业大学玉米研究中心,雅安625014

出　　处：《中国农业科学》2005年第4期671-677,共7页Scientia Agricultura Sinica

基　　金：农业部"948"项目(991007)资助

摘　　要：采用NCII 设计,以齐205、CA375 和CA339 为测验种,与22 个来自于CIMMYT 的亚热带QPM 自交系配制66 个测交组合,经过两年完全区组田间试验,分析22 个CIMMYT 自交系的配合力和杂种优势群。结果表明,CML181、CML182、CML194、CML179、CML193 产量一般配合力较高,在我国的QPM 种质改良中有较大的应用价值。来源于群体Pool32、UWO417、WOMTA、CYO 和Pool33 的自交系与CA375、CA339 之间的亲缘关系较近,可划在同一个杂种优势群,定为QA 群。来源于群体Pool34 和UYO 的自交系与齐205 的亲缘关系较近,可划在同一杂种优势群,定为QB 群。Combining ability and heterotic groups of 22 CIMMYT subtropical quality protein maize (QPM) inbred lines were analyzed based on the data of design II, in which the CIMMYT QPM lines were crossed with 3 QPM testers Qi205, CA375 and CA339 used successfully in China. Field experiments were conducted in two years. The results indicated that a high general combining ability (GCA) of inbred lines CML181, CML182, CML194, CML179 and CML193 was observed and these inbred lines will be used in QPM breeding efforts in China. Inbred lines from populations Pool32, UWO417, WOMTA, CYO and Pool33 were classified into the same heterotic group QA as CA375 and CA339 due to the minor genetic distance among them, while inbred lines from populations Pool34 and UYO showed closer genetic distance with Qi205, and were clustered into the heterotic group QB.

关 键 词：优质蛋白玉米 CIMMYT亚热带自交系 配合力 杂种优势群 

分 类 号：S513[农业科学—作物学]