我国主要水稻雄性不育系的熟期气候适应性分析

Study on Climate Adaptability of Growth Duration for Main Rice Genic Male Sterile Lines in China

根据我国南方稻区24地区1970-2001年的逐日气象资料,在预测各不育系抽穗期的基础上,以育性敏感期安全和扬花期安全为指标,分析了各不育系在我国南方稻区不同熟制下的熟期气候适应性。结果表明,所有水稻雄性不育系均随播期的推迟生育期缩短,熟期适应性因品种的光温特性及所处的环境条件而异。

Based on the daily meteorological data from 1970 to 2001 of 24 rice production regions in south of China, climate adaptability of growth duration for main rice genie male sterile lines（GMS） in China was investigated. Results showed that the growth duration turned shorter along with the delay of seeding date. Climate adaptability of growth duration for main rice GMS depended on the photoperiod, temperature sensitivity and growing environment.