玉米自交系长_3的改良与利用  

The Improvement and Utilization of the Self Line Chang3

作　　者：龚士琛[1] 苏俊[1] 李春霞[1] 张坪[1] 宋锡章[1] 张瑞英[1] 钟占贵[1] 闫淑琴[1] 李国良[1] 扈光辉[1] 王明泉[1] 

机构地区：[1]黑龙江省农业科学院玉米研究中心,黑龙江哈尔滨150086

出　　处：《玉米科学》2004年第2期46-48,共3页Journal of Maize Sciences

摘　　要：以骨干自交系长3与5003杂交后与长3回交,选育出了配合力高、抗病性强、早熟和综合性状好的新自交系K10、HR25和HR3。用其作亲本,育成龙单13、龙单20和黑342等玉米杂交种在生产上大面积推广应用。K10已成为黑龙江省玉米育种的骨干自交系之一。By crossing the leading self line Chang3with5003and then back crossing,we had selected new self lines K10、HR25and HR3with fine comprehensivee characteristics of high combining ability,strong disease-resis-tance,early maturation.Utilizing these self lines as parents,the maize hybrids longdan13、longdan20、Hei342,etc,had been selected and developed in large scale.K10had become one of the leading self lines in the maize breeding of Heilongjiang province.

关 键 词：玉米 自交系 杂交 回交 改良 育种 

分 类 号：S513[农业科学—作物学]