美国玉米种质对北方Reid群改良效果研究  

Reaserch of American Maize Germplasm on Improvement of Inbred Lines of Reid Group in North China

作　　者：李继竹[1] 王勇[2] 于维[3] 衣洪坤[1] 吴景彬[1] 郭琦[1] 杨伟光[1] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]先正达(中国)投资有限公司隆化分公司,长春130022 [3]吉林省种子管理总站,长春130062

出　　处：《玉米科学》2010年第4期23-26,共4页Journal of Maize Sciences

基　　金：吉林省教育厅"十一五"科学技术研究项目(2008069);吉林省财政厅科研育种项目(2009)

摘　　要：采用NCII设计,在60 000株/hm2密度下,对5个美国Reid群的遗传改良系与塘四平头群的自交系配制的25个玉米杂交组合穗部性状配合力进行了研究,评价了5个美国Reid改良系的改良效果和利用潜力。结果表明:J1129和J1110的单株产量一般配合力高,组配出3个高产组合,增产潜力大;J1018和J1150单株产量的一般配合力较低,各组配出1个高产组合。表明改良系×塘四平头的组配模式与PA×塘四平头群的杂种优势模式相符,在高产密植型杂交种选育中具有较大应用潜力。Five improved maize inbreds were crosses with five testers representing key inbreds of Tangsipingtou group by NC-Ⅱ mating design.The improvement effects and utilization potential of improved lines were evaluated based on analysis of combining ability in 60 000 plant/ha.The results were that inbred lines J1129 and J1110 had higher general combining ability(GCA) on kernel yield per plant,and they crossed three high yield hybridized combi-nation,and they showed a high yielding potential.The GCA of kernel yield...

关 键 词：玉米 美国种质 Reid群 品种改良 

分 类 号：S513[农业科学—作物学]