Screening of tomato F_2:3 families derived from the cross vaibhav x anaga for bacterial wilt disease

The present study was conducted at College of Horticulture, University of Horticultural Sciences Campus, GKVK, Bengaluru during 20013-14. The experimental material comprised of bacterial wilt resistant variety, Anaga and susceptible variety, Vaibhav. The seeds from F1 hybrid derived from the cross involving Vaibhav x Anaga this cross combination was identified for F1 being resistant and productive and a genetic analysis involving these two parents also revealed monogenic/oligogenic nature of inheritance for bacterial wilt (Jyothi, 2013) and the experiment was laid out in Randomized block design with three replication. The F3 families of all the F2 individual plants will be evaluated both in sick plot and sick pot conditions to ascertain their segregation pattern for the incidence of bacterial wilt disease. Result on bacterial wilt showed that out of 300 F2:3 populations 70 recombinant inbreed lines were resistant, 147 lines were moderately resistant and 83 were susceptible for bacterial wilt disease incidence under sick field condition, where as 83 lines were resistant, 148 lines were moderately resistant and 85 were susceptible for bacterial wilt disease incidence under potted condition for bacterial wilt disease incidence.