我国杂交小麦的研究起步较早，且有三系、两系之分。就目前来说，三系大都难于配套，且成本高。两系制种，又分不育系（光温敏）制种和化杀制种两种，光温敏不育系制种，母本受温度、光照影响较大，用起来风险性大而且需要异地制种，增加杂交种成本。而化杀制种，是目前较简捷 The research on hybrid wheat in our country started earlier and has three lines and two lines. For now, most of the three lines are difficult to match and costly. Two lines of seed production, but also the male sterile lines (light temperature sensitive) seed production and kill two kinds of species, light temperature-sensitive male sterile seed production, the female parent by the temperature, the greater the impact of light, with a large risk and Need to produce seeds off-site, increase the cost of hybrids. The killing of species, is the more simple