通过对Ⅱ优 1 8、Ⅱ优 5 8父母本开花习性、生育习性的观察和不同施肥水平对双亲生育进程的影响及激素调花效果的研究 ,为确保父母本花期正常相遇、提高母本异交结实率、争取两系杂交小麦制种高产提供依据 Through the study of flowering habits and reproductive habits of parents and the effects of different fertilization levels on the process of parental development and hormonal translocation in Ⅱ You 18 and Ⅱ You 5 8 parents, in order to ensure the normal flowering of parents, To pay real rate, for two-line hybrid wheat high yield basis