中国水稻科学2001，Vol.15Issue(2)：81-87,7.
我国主要水稻光温敏核不育系类型的气候适应性
Adaptability of Photo-Thermo Sensitive Genic Male Sterile Rice Line to Climate Condition in China
摘要
Abstract
Based on the data from the experiment “joint ecologicaldetermination of new sterile lines” at Sanya, Wuchang, Nanjing, and Guiyang in 1997-1998, fertility variation of Pei′ai64S（a low temperature sensitive sterile line） and N5088S（a photoperiod sensitive sterile line）under different daylength and temperature condition was analyzed. The results showed that the fertility of Pei′ai64S was dominantly affected by temperature and unstable，the critical low temperature for fertility conversion were different among years and cities; and that of N5088S was dominantly affected by daylength, difference of critical daylength for fertility conversion was small in different years in a city，but large in different cities. According to daily mean temperature and theoretical daylength in 1951-1992, space/time patterns in the southern rice region(18°14′-34°17′N), including the areas of Sanya, Nanjing, Guangzhou, Fuzhou, Changsha, Hangzhou, Gaoyou，and Xuzhou, were assessed. From an ecological opinion, three techniques for overcoming cool summer injuries to the production of such rice seeds are presented, which are: selecting a appropriate region in a climatic condition; changing seeds production season from autumn to spring in double cropping rice areas, or moving to higher region of single rice cropping region for seeds production at autumn; evaluating comprehensively the features of temperature- and photoperiod-sensitive sterile lines, and rationally utilizing photo-thermo sensitive sterile line based on climatic condition.关键词
水稻/光温敏核不育系/气候条件/适应性/育性转换指标/日照长度/温度分类
农业科技引用本文复制引用
卢兴桂,袁潜华,姚克敏,刘梅..我国主要水稻光温敏核不育系类型的气候适应性[J].中国水稻科学,2001,15(2):81-87,7.基金项目
国家“863”计划资助项目。 （）
