不同普×爆后代群体膨爆特性的分离特征研究  

Study on the Popping Characteristics of Different Populations from Normal Corn×Popcorn Crosses

作　　者：李玉玲[1] 吴锁伟[1] 董永彬[1] 张亚丽[1] 李志强 

机构地区：[1]河南农业大学农学院,河南郑州450002 [2]许昌市农技中心,河南许昌461000

出　　处：《玉米科学》2004年第2期3-6,共4页Journal of Maize Sciences

基　　金：河南省重大科技攻关项目(0122011700)

摘　　要：对5个普通玉米自交系与4个爆裂玉米自交系组配的20个普×爆组合F2,BC1,BC23个世代的膨爆特性分析结果表明:F2代膨爆特性较差,难以采用常规系谱法从中选育出优良的膨爆玉米自交系;通过回交可以快速恢复其优良的膨爆特性,但不同组合及同一组合不同世代间的膨爆特性存在较大差异。因此,要提高后代的选育效果,首先要选配适宜的普×爆组合,其次是要确定具体的回交世代。normal corn inbreds and4popcorn inbreds were chosen to make20crosses and the popping char-acteristics of their three populations(F2,BC1,BC2)were analyzed.The results showed that the popping characteristics of F2generations were very low,and so,elite popcorn inbreds couldn't be obtained from them through normal pedi-gree selection method.Through backcrossing with the popcorn parents,all the popping characters could be improved significantly.Since there were great difference among crosses and between BC1and BC2generations from the same cross,suitable normal corn×popcorn crosses should be made first and then the backcrossing generation chosen to get good result in further selection.

关 键 词：爆裂玉米 普通玉米 回交 膨爆特性 分离特征 自交系 

分 类 号：S513[农业科学—作物学]