Fig. (6) Colony growth as per OD at A₆₀₀ (left panel) and extent of colony pigmentation as per A₅₀₀ (right panel) of different isolates of Ralstonia solanacearum from various crop sources or geographic locations on KM-TTC documented on day 2. P1-P19 represents 19 KM-TTC peptone formulations with different brands and lots as in Table 2 and P20 represents CPGA control. The isolates included ‘NH-Av01’ from tomato, ‘Rs.01.11’ from eggplant, ‘Rs. 09-94’ from chilli, ‘GRs-Mnt’ from ginger and ‘KAU-Av01’ from tomato.