【作者】 王连敏； 王立志； 李忠杰； 李锐； 王春艳； 刘功； 中本和夫；

【Author】 Wang Lianmin Wang Lizhi Li Zhongjie Li Rui Wang Chunyan Liu Gong (1 Crop Tillage and Cultivation Institute of Heilongjiang Academy of Agricultual Sciences,Harbin 150086.2 International Agriculture Research Center of Japan)

【机构】 黑龙江省农业科学院耕作栽培所； 日本国际农林水产研究中心；

【摘要】 利用人工气候室对黑龙江省主栽水稻品种进行耐小孢子阶段低温试验,结果表明：不同水稻品种耐低温的能力有较大的差异。15℃低温处理7天,不育率降低幅度由3% 增至70%。冷积温每增加1℃．d,不育率由0．002%增至1．898%。由此鉴定出来的耐小孢子阶段低温的水稻品种有：松粳10,东农423,空育131,龙稻3号以及龙稻6号。而对此其低温较敏感的品种是龙粳11、龙粳13、松粳7号、龙稻7号、垦稻12等。更多还原

【Abstract】 Cooling temperature-tolerant experiment on major rice cultivars at microspore stage in Heilongjiang province was conducted in phtotran.The experimental results showed that cooling temperature-tolerant ability among cultivars was greatly different.Under cooling temperature (15 ℃) for 7 days,the spikelets sterile rate ranged from 3% to 70%.When accumulated cooling temperature increased for 1℃.d,the spikelets sterile rate ranged from 0.002% to 1.989%.Therefore,it could be referred that cooling temperature-tolerant cultivars were Songjing No.10,Dongnong 423, Kongyu No.131,Longdao No.3 and No.6.while the cooling temperature-sensitive cultivars were Longjing No 11,No.13,Songjing No.7,Longdao No.7 and Kendao No.12.更多还原