摘要
桂９９在试验条件下开花与散粉在时间上接近正态分布，跟开花相比，散粉比较分散，高峰出现较晚。花粉的空间分布很不均匀，随着对父本距离增加而急剧减少，５０％以上的花粉散落在父本行内。花粉有效率仅３．３％。
The time distribution of flowering and pollen shedding of Gui 99,a rice restorer line,abodeby normal distributiOn under the experimental conditions.Compared with flowering,pollen shedding wasmore scattered with a later peak.The space distribution of pollens was very uneven,the pollen densitysharply decreasing with the distance away from the male parent increasing.More than 50%of the total pol-lens shed within the rows of the male parent,and the effective pollens only accounted for 3.3%.
出处
《杂交水稻》
CSCD
北大核心
1996年第4期15-17,共3页
Hybrid Rice
关键词
开工频率
散粉频率
杂交水稻
制种
hybrid rice
male parent
flowering
pollen shedding
normal distribution
pollen density
