“矮败”小麦等的异交结实率和太谷核不育小麦一样，受多种因素影响，变动幅度较大，其中最关键的因素乃是矮秆的不育穗受到高秆不育株叶片的荫蔽。适当除去不育穗顶部遮挡的叶片，辅之以人工辅助授粉，可获得满意的效果。用鸡毛帚授粉，是授粉工具的最佳选择。 Similar to Taigu nuclear sterile wheat, the outcrossing rate of “dwarf defeat” wheat and so on is affected by many factors and the variation rate is large. The most crucial factor is that the dwarfed sterile spike is affected by the high stalk sterile plant Shaded leaves. Appropriate removal of the top leaves of sterile spikes, supplemented by artificial pollination, can be satisfied with the results. Pollination with a chicken broom is the best choice for pollination tools.