Breeding of Hybrid Rice Restorer Line, Fuhui 673

Fuhui 673 is a hybrid rice restorer line bred at the Rice Research Institute of Fujian Academy of Agricultural Sciences by crossbreeding the restore line N175 and the F2 plant of crossing between the SP1 plant of Minghui 86 of space mutation and Tainong 67. The resultant hybrid had a strong restoring ability, wide restorer profile and good combining capacity. The series of breeds, including Yiyou 673, II you 673, Chuanyou 673, Tianyou 673, Guangyou 673, Yueliangyou 673, etc., exhibited excellent characteristics in regional trials in and outside the province. Among them, Yiyou 673, II you 673, Chuanyou 673 and Tianyou 673 had passed tests 8 times by the crop variety approval committee beyond the provincial level. The breeding process of the restorer line Fuhui 673, as well as the biological characteristics and performance of these new hybrid rice varieties, is presented.