A total of 10 good MSHs were selected according to the grain yield and the population uniformity, and its grain yield increased from 10.43% to 26.39% compared with the corresponding higher SHs. 通过综合考查各改良单交组合的产量优势及群体整齐度,筛选得到10个有可能在生产上应用的改良单交种,其产量比相应高产单交种增加10.43%~26.39%。