Multiplication of Ralstonia solanacearum in Capsicum annuum

Bacterial population differed statistically between resistant and susceptible cultivars at the mid stem, collar and mid stem regions and for all techniques of inoculation used. In susceptible cultivar, bacterial population density did not differ significantly from the 8th to 16th day neither for different sites of detection nor for the inoculation techniques used. Bacterial population decreased significantly at all sampling sites in stem-inoculated resistant plants. In root-inoculated plants, the population density increased initially, then decreased significantly among the three sites tested. When soil-inoculated, bacterial population decreased significantly between the root and collar region, and the pathogen was not detected in mid stem region.