江苏鲜食糯玉米育种杂种优势群及杂优模式分析  

Analyses of Heterotic Groups and Heterosis Mode of Waxy Maize in Jiangsu Province

作　　者：沈锦根[1] 胡加如[1] 薛林[1] 印志同[1] 

机构地区：[1]江苏沿江地区农业科学研究所,江苏如皋226541

出　　处：《江苏农业学报》2007年第5期401-404,共4页Jiangsu Journal of Agricultural Sciences

基　　金：农业部农业结构调整项目(05-03-018);江苏省农业高技术项目(BG2005309)

摘　　要：分析了通过省级以上审定的迄今江苏省自育的14个糯玉米杂交种的血缘关系及杂交种选系的配合力,结果表明:①江苏省鲜食糯玉米育种的杂种优势群为通系5类群、衡白522类群和其它类群,其中通系5类群和衡白522类群为主要杂种优势群;②杂优模式为通系5类群×衡白522类群、通系5类群×其它类群、衡白522类群×其它类群、其它类群×其它类群,其中通系5类群×衡白522类群是主要杂优模式。江苏需要不断挖掘新的优良种质,加强种质的收集、整理、改良和创新,创造新的杂种优势群,以拓宽杂优模式,育成突破性新品种,提高糯玉米生产的安全性。The affinity of fourteen waxy self-bred maize hybrids in Jiangsu province and combining abilities of inbred lines derived from the hybrids were analyzed. The heterotic groups of waxy maize in Jiangsu province were Tongxi 5 group, Hengbai 522 group and other groups, with Tongxi 5 group and Hengbai 52 group being the main group. Tongxi 5 group × Hengbai 522 group, Tongxi 5 group × other groups, Hengbai 522 group× other groups, and other groups x other groups were the heterosis modes for waxy maize in Jiangsu ,with Tongxi 5 group x Hengbai 522 group being the dominating mode. Waxy maize germplasm in Jiangsu province needs to be collected, improved and created to develop new heterotic group and breed new varieties, as a result, enhance the safety of waxy maize production.

关 键 词：糯玉米 杂种优势群 杂优模式 

分 类 号：S513.035.1[农业科学—作物学]