水稻光温敏核不育系利用中存在的问题与对策  

Problems and Countermeasures in Utilization of PTGMS Lines in Rice

作　　者：何强[1] 蔡义东[2] 徐耀武 陈立云[1] 

机构地区：[1]湖南农业大学水稻研究所,湖南长沙410128 [2]湖南省农业厅种子管理站,湖南长沙410005 [3]湖南亚华种业股份有限公司,湖南长沙410001

出　　处：《杂交水稻》2004年第1期1-5,共5页Hybrid Rice

基　　金：湖南省自然科学基金资助项目 (0 3JJY3 0 3 3 )

摘　　要：系统回顾了自 1989年以来在利用水稻光温敏核不育系中遇到的温度对育性的影响、不育起点温度“漂变”以及两系杂交稻制种实践中出现的风险等问题 ,分析了导致这些问题产生的原因 ,讨论了解决这些问题的方法和技术策略。The problems such as the effect of temperature on fertility/sterility alteration, the drift of critical sterility-inducing temperature (CSIT) and the risk of two-line hybrid rice seed production were systematically reviewed in utilization of photo- and/or thermo-sensitive genetic male sterile (PTGMS) lines in rice after 1989. The causes of these problems were analyzed, and the countermeasures and technical strategies were discussed for solving these problems.

关 键 词：杂交水稻 光温敏核不育系 温度效应 育性转换 临界温度“漂变” 制种风险 技术策略 

分 类 号：S334[农业科学—作物遗传育种] S311[农业科学—农艺学]