杂交水稻配套以来,发展很快,种植面积迅速扩大,为我国粮食增产作出了重大贡献。近几年推广杂交水稻的实践证明,珍汕97不育系配组的组合,具有稳产、高产的特点,已成为当前生产上强优当家组合。但是,从我区的生产实践所反映的问题看,珍汕97不育系制种普遍不如 Since the establishment of hybrid rice, the development has been rapid and the area under cultivation has expanded rapidly, making a significant contribution to increasing grain output in our country. In recent years, the practice of popularizing hybrid rice has proved that the combination of Zhenshan 97 CMS has the characteristics of stable yield and high yield, and has become the current strong combination of production and superiority. However, judging from the problems reflected in our district’s production practices, the seed production of Zhenshan 97 CMS is generally not as good