水稻三系育种,就是通过选育三系作为配组的双亲,配制出杂交水稻供生产应用。一九七三年,当我们筛选出第一批恢复系时,就感到野栽型不育系的恢复系较少,且筛得的是引自东南亚品种,生育期较长,影响到杂交水稻迟熟,应用范围受到限制,同时也给制种带来困难。因此,从那时开始我们就着手进行新恢复系的选育工作。几年来,我们采用恢复系与恢复系杂交、恢复系与保持系杂交、野栽型三系杂交、恢复系诱 Three lines of rice breeding, that is, through the selection of three lines as a group of parents, prepared hybrid rice for production applications. In 1973, when we screened the first restorer lines, we found that the restorer lines of wild-type CMS lines were fewer and the screenings were derived from the Southeast Asia cultivars with longer growth period and affected the hybrid rice Late maturity, the scope of application is limited, but also to seed production difficulties. Therefore, since then we have embarked on the breeding of new restorers. Over the past few years, we use the restorer and restorer hybrids, restorer and maintainer hybrids, wild-type hybrids and restorers