摘要
在省内３个不同生态地区，对７个两用核不育系的分期播种的育性观察试验表明，核不育系不育期的长短变化规律是随海拔增高由长变短；可育期内繁种结实性是随海拔增高由低到高。因此，可采取低海拔地区制种、高海拔地区繁种的方法利用水稻两用核不育系。同时，提出了参试不育系在贵州省的适用范围和繁制种措施。
The fertility investigation under different sowing stage was conducted for 7 rice dual purpose genic male sterile lines in 3 ecological regions of Guizhou. The results showed that: (1) Sterile period gradually becomes short from low elevation to high elevation. (2) Seed bearing rate in fertile period gets better from low elevation to high elevation. With this, we can reproduce the sterile line seeds in high elevation region and produce hybrid rice seeds in low elevation regions. Regional range is also analysed suitablly for utilizing the male sterile line and the measure of hybrid seed production and sterile line reporduction.
出处
《贵州农业科学》
CAS
1999年第4期6-8,共3页
Guizhou Agricultural Sciences
基金
贵州省"九五"科技攻关项目
关键词
两用核不育系
不育性
可育性
贵州
水稻
dual purpose genic male sterile line
sterility
fertility
Guizhou
