TO435恢复系是湖南省衡阳市农科所用TO494为母本,IR26为父本的杂交后代经测交选育而成。1982年配组,1983年参加该所早稻新组合比较试验,亩产498.5公斤,比对照湘矮早9号增产10.2%。1984年参加该所晚稻新组合比较试验,于7月12日播种,9月7—13日抽穗,全生育期95—100天,平均亩产43 TO435 restorer line is Hengyang City, Hunan Province, TO494 used as the female parent, IR26 as the male parent of hybrid progenies selected cross breeding. In 1982 with the group, in 1983 to participate in the new combination of early rice test, a yield of 498.5 kilograms, compared with the control Xiang short morning 9 yield 10.2%. 1984 to participate in the late rice new combinations of comparative trials, sown on July 12, September 7-13 heading, the whole growth period of 95-100 days, the average yield 43