论文部分内容阅读
Rice(Oryza sativa L.)is one of the most important food crops in the world.Originating in tropical and subtropical regions,rice cultivars are grouped into two major subspecies,indica(O.sativa ssp.indica)and japonica(O.sativa ssp.japonica).indica cultivars grown in low latitude areas
Rice (Oryza sativa L.) is one of the most important food crops in the world. Originally in tropical and subtropical regions, rice cultivars are grouped into two major subspecies, indica (O.sativa ssp. Indica) and japonica (O.sativa ssp.japonica) .indica cultivars grown in low latitude areas