京科968等系列玉米品种“易制种”性状选育与高产高效制种关键技术研究  

Characteristics Related to ‘Easy Seed Production'and the Key Technology of High Yield and High Efficiency Seed Production of Commercial Hybrids Jingke968 et al.

作　　者：王元东[1] 赵久然[1] 冯培煜[1] 段民孝[1] 张华生[1] 王荣焕[1] 陈传永[1] 

机构地区：[1]北京市农林科学院玉米研究中心,北京100097

出　　处：《玉米科学》2016年第2期11-14,共4页Journal of Maize Sciences

基　　金：国家"863"项目"强优势玉米杂交种的创制与应用"(2011AA10A103);粮食作物产业技术体系北京市创新团队专项经费资助项目(BITG7);北京市农林科学院科技创新能力建设专项"玉米种质资源发掘;收集整理与创新"(KJCX20140107)

摘　　要：分析京科968等系列玉米品种与易制种相关的农艺性状、典型制种高产田的产量及产量构成要素。结果表明,京科968等系列玉米品种具有良好的易制种特性,单位面积制种产量大幅高于先玉335,与郑单958相当或略高。按单位面积有效商品子粒数计,京科968玉米品种较郑单958和先玉335具有明显优势。先进的育种指导思想和技术路线是易制种京科968等系列玉米品种选育成功的关键,集成和优化制种关键技术措施是其实现高产高效制种和产业化推广应用的基础。Characteristics related to‘easy seed production＇of Jingke968 et al., and their yield and yield com-ponents in typical seed high-yield plots were analyzed. The result showed that Jingke968 et al possessed good traitsfor easy seed production, and their seed yield per unit area was as high as Zhengdan958 and higher than Xianyu 335.Compared to Zhengdan958 and Xianyu335 there were obvious advantages in the total effective commodity grainnumber per unit area for Jingke968. Advancing breeding guidelines and technical routes were the key to the successfor Jingke968 et al in easy seed production, and integrated and optimized the key technical measures were the basisfor high yield and high efficiency in seed production.

关 键 词：玉米 京科968 “易制种”性状 

分 类 号：S513.035[农业科学—作物学]