Breeding bacterial blight resistant rice (Oryza sativa L.) hybrids

Abstract

Bacterial blight (BB) caused by pathogen Xanthomonas oryzae pv. oryzae (Dowson) Dye is a major rice (Oryza sativa L.) disease especially in the tropics and sub tropics. Since no chemical control is effective against this disease therefore, genetic resistance is the suitable alternative for the disease management. In hybrid breeding programme, resistance governed by dominant gene(s), is desirable because even one parent having dominant resistance will result in the development of resistant hybrids. [1].