北方杂交粳稻不育系选育和提纯  

Breeding and Purification of Japonica CMS Lines

作　　者：迟克生[1] 华泽田[1] 苏玉安[1] 杨振玉[1] 

机构地区：[1]北方杂交粳稻研究中心

出　　处：《杂交水稻》1995年第5期12-14,共3页Hybrid Rice

摘　　要：提出了粳稻不育系选育应以人工制造保持系为主，并对其选育目标、途径和有关探索性问题进行了讨论。还重点介绍了不育系种茬结合的提纯方法。The planted area of japonica hybrid rice has decreased sharply in the North in recent years forlack of practical high yielding combinations and for the confounding and degeneration of CMS Iines.It isindicated that the breeding of CMS lines should be paid more attention to the crossbreeding of maintatinerlines. The breeding objectives.approaches of CMS lines and some new problems arising on research aspectswere also discussed.Futhermore,a new way to purify CMS lines through ratooning was put forwnrd.

关 键 词：粳稻 不育系 混杂 提纯 杂交水稻 选择育种 

分 类 号：S511.220.3[农业科学—作物学]