高产中早熟玉米杂交种选育探讨  

Studies on Breeding High-yield Early and Iintermediate-rip Ening Hybrid Corn

作　　者：陈润玲 赵保献 梁晓伟 张凤瑞[2] 雷晓兵 王向阳 李文晓 

机构地区：[1]洛阳市农科所,河南洛阳471022 [2]郑州师范高等专科学校生命科学系,河南郑州450000 [3]河南省栾川县种子公司,471025

出　　处：《中国农学通报》2006年第4期191-194,共4页Chinese Agricultural Science Bulletin

基　　金：农业部科技成果转化基金项目(04EFN214100186)。

摘　　要：通过对玉米高产构成因素分析,结合育种实践,着重探讨了高产、高配合力中早熟玉米自交系选育问题,明确指出:(1)玉米种质基础的拓宽是玉米选系材料创新的基础;(2)籽粒排列紧密程度是选育高配合力自交系的关键;(3)组配组合时,结合杂优模式,不为杂种优势模式所束缚,广配组合,进行杂交种产量比较观察,多点鉴定,慎重“破格升级”,缩短育种年限。Integrating componential factors affecting high yield with breeding practice, this article mainly probes into high yield and in breeding early and intermediate-maturing inbred line and concludes that： （1） The extension of germ plasm is the innovation basis for choosing materials for corn breeding; （2） The compactness of seed sequencing is the key to breed high combining ability inbred line maile; （3） Combining the advantages of hybrid while not restricted to it in combination, comparative observation on the yield of hybrid variety and multi-spot observation are necessary to shorten the span of breeding and to guard against ＂pre-upgrading＂.

关 键 词：玉米 自交系 杂交种 高产 选育 

分 类 号：S885.1[农业科学—特种经济动物饲养] S513[农业科学—畜牧兽医]