The inheritance of resistance to the strain RS-68 of Xanthomonas oryzae pv. oryzicola in four indica rice cultivars (Dular, IR26, IR36 and IR1545-339) were studied. Based on the analysis of population variations in lesion length in hybrids including F1,F2,BC1 and BC2 derived from four combinations by those resistant cultivars with a susceptible cultivar Jingang 30. It was found that the resistance of Dular, IR26 and IR1545-339 to the pathogen wes respectively controlled by one pair of dominant genes, and the resistance of IR36 was controlled by a recessive gene.
Chinese Journal of Rice Science