玉米品种郧单21亲本选育及高产制种技术  

Parent breeding and high-yielding breeding technology of maize variety Yundan 21

作　　者：周刚[1] 陈光勇[1] 杨虎[1] 张世洪[1] 唐余成 叶青松[1] 徐星华[1] 李文品[1] ZHOU Gang;CHEN Guang-yong;YANG Hu;ZHANG Shi-hong;TANG Yu-cheng;YE Qing-song;XU Xing-hua;LI Wen-pin(Shiyan Academy of Agricultural Sciences,Shiyan 442000,Hubei,China)

机构地区：[1]十堰市农业科学院,湖北十堰442000

出　　处：《湖北农业科学》2021年第23期15-17,26,共4页Hubei Agricultural Sciences

基　　金：湖北省农业科技创新中心项目(2016-620-000-001-063)。

摘　　要：郧单21是用自交系WD03作母本、自交系N75作父本组配的玉米杂交种。介绍了郧单21亲本自交系的选育过程及其特征特性,总结了亲本自交系的繁殖技术。从选择基地、科学的群体结构、播差期等方面总结了高产制种技术措施。结果表明,适宜的制种密度为75000~90000株/hm^(2),父母本行比为1∶4,播差期为同期播种。Yundan 21 is a maize hybrid with inbred line WD03 as parent,inbred line N75 as parent.The breeding process and characteristics of Yundan 21 parent inbred lines were introduced,and the breeding techniques of parent inbred lines were summarized.The technical measures of high-yield seed production were summarized from the selection of base,scientific population structure and sowing time.The results showed that the suitable seed production density was 75000~90000 plants/hm^(2),the ratio of parents was 1∶4,the sowing time was the same period.

关 键 词：郧单21 WD03 N75 亲本选育 高产制种技术 

分 类 号：S513[农业科学—作物学] S331