作物杂种优势利用在玉米、水稻、油菜等作物上己取得了举世瞩目的成就和良好的经济效益。小麦系自花授粉作物,通过异交获得较高的种子产量,是一项难度较大的技术,强优势组合筛选效率低、制种技术不够成熟、杂交种成本较高,是制约杂交小麦大面积应用的两大技术难题。杂交小麦的单位面积用种量是杂交水稻、杂交玉米的3倍,因此除了改进播种方法和栽培技术、降低杂交小麦的单位面积用种量外,在保证制种纯度的前提下,建立成熟稳定的规范化、规模化高效杂交小麦 Heterosis advantage of crops has made remarkable achievements and good economic benefits on crops such as corn, rice and rape. Wheat is a self-pollinated crop, and the higher seed yield through outcrossing is a more difficult technique. The combination of high-potency combinations has low screening efficiency, seed production technology is not mature enough and hybrids cost more, Area application of the two major technical problems. Therefore, in addition to improving the sowing methods and cultivation techniques, reducing the unit area of ​​hybrid wheat with the amount of seed, under the premise of ensuring seed purity, to establish a mature and stable Standardized, large-scale and efficient hybrid wheat