摘要
本研究通过不同地区的分期播种试验。观察了 W6154S、5460S 的生育特性和育性转换特性,指出了两个核雄性不育系的播种至始穗历期随纬度和海拔升高而增加,随栽培季节温度的升高而缩短.温度是诱导两个核雄性不育系育性转换的主导因素.同时提出了其制种与繁殖的适宜季节.
The development characteristics and fertility transformation of dual-purpose genicmale-sterile lines of W6154S and 5460S were studied in this paper.By differing sowing datein different regions,the days from sowing to heading incrcased as latitude and elevationraised,but decreased as temperature of sowing date rose.Temperature turned out to be amajor factor inducing fertility transformation of W6154S and 5460S.They would be fertileunder lower temperature,while sterile under higher temperature.The critical temperaturefor W6154S was 27.0℃,and 28.0℃ for 5460S.
出处
《江西农业大学学报》
CAS
CSCD
1993年第A01期15-20,共6页
Acta Agriculturae Universitatis Jiangxiensis
关键词
生育特性
育性转换
三系配套
水稻
Dual-purpose genic male sterile lines
Develpment charactistics
Fertility transformation
