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There is a close relationship between the hy—brid rice production and seed purity.Two-linehybrid rice with higher heterosis is producedthrough the hybridization between a photo-thermo sensitive genetic male sterile(GMS) rice line and a paternal variety.But the fertili-
There is a close relationship between the hy-brid rice production and seed purity. Two-line hybrid rice with higher heterosis is produced through the hybridization between a photo-thermo sensitive genetic male sterile (GMS) rice line and a paternal variety. But the fertili-