近年来,化学杀雄杂交水稻赣化二号、三号等组合的试种、示范、推广,受到贫下中农的欢迎,引起了很多农业工作者的重视。如何根据“化杀”的特点,合理选择亲本,选育杀雄容易,制种产量高,特别是二代利用价值大的强优组合,对进一步利用杂种优势有着重大意义。几年来,我们进行 In recent years, chemical hybridization male hybrid rice Jiangxi 2, No. 3 and other combinations of trials, demonstration, promotion, by poor middle peasants welcome, attracted a lot of agricultural workers attention. According to the characteristics of “kill kill”, it is of great significance to further utilize the heterosis by reasonably selecting parents, selecting and killing kill male easily, high seed production and yield, especially the strong combination of high utilization value of the second generation. In recent years, we conducted