用协青早Ａ作母本配制的杂交系列组合具有抗性强、米质优、后期熟相好及大田产量高等特点，但由于制种难度相对较大，产量低，易穗芽，生产单位不愿组织生产。通过多年的摸索研究，笔者认为，在父母本发苗正常、花期相遇良好的情况下，解决好九二○的使用技术问题是提高种... The cross combinations of Xieqingzao A as female parent had the characteristics of strong resistance, good quality of rice, good late ripeness and high output of field. However, due to the relatively difficult seed production, low yield and easy bud production, Is willing to organize production. Through years of groping research, the author believes that the parents of the seedlings in the normal, flowering meet a good case, to solve the problem of using nine hundred twenty-two is to improve the technology ...