反温敏核不育系go 543 s临界温度值及其温度敏感期的研究  

Critical Temperature and the Thermo-sensitive Phase of Reverse Thermo Sensitive Genic Male Sterile Rice Line——go 543 s

作　　者：蔡义东[1] 

机构地区：[1]湖南省种子管理站,长沙410005

出　　处：《种子》2005年第10期1-3,共3页Seed

基　　金：国家自然科学基金资助项目(项目批准号:30150004)

摘　　要：利用人工气候室和分期播种研究了反温敏核不育系go 543 s临界温度值及其温度敏感期.试验结果表明高温诱导反温敏核不育系go 543 s育性转换的临界温度值为29.5～30℃;反温敏核不育系go 543 s育性转换温度敏感期在雌雄蕊形成期至减数分裂期,即抽穗前18～13 d;同时讨论了该不育系在实际应用中应注意的问题.By using imported phytotron and sowing in different date, critical temperature and the thermo-sensitive phase of reverse thermo sensitive genie male sterile line——go 543 s were studied under artificial conditions. The results showed that critical temperature of the fertility alteration induced by high temperature in plant of reverse thermo sensitive genie male sterile line go 543 s were between 29.5℃ and 30℃. The thermo-sensitive phase of the fertility alteration in go 543 s occurred from stamen formation stage to meiotic phase, i.e. 18-13 days before heading. The practical utilization of go 543 s was also discussed.

关 键 词：反温敏核不育水稻 育性转换特性 临界温度值 温度敏感期 温敏核不育系 育性转换 人工气候室 减数分裂期 分期播种 高温诱导 

分 类 号：S511.210.3[农业科学—作物学] S511.101