Sudhir Shrestha

DOI

ABSTRACT

Four eggplant and nine tomato rootstocks were evaluated for their resistance to bacterial wilt and compatibility with tomato scion ‘Ogata fukuju’ in Tsukuba International Training Center, Tsukuba from June to October 2010. Grafting was conducted two times and the method was tube grafting. All combinations were evaluated in terms of graft success, plant growth, stem thickness, evapotranspiration and incidence of bacterial wilt in naturally infested soil. Success percent in the two grafting batch was not similar in terms of different graft combinations. Eggplant rootstocks contributed for the overgrowth on stem diameter of scion, however no wilt symptoms due to incompatibility could be observed. Plants grafted on Tolban vigor, Tonasim, B-barrier and BF-Okitsu showed no bacterial wilt symptoms whereas that on Doctor-K, Taibyo Shinko No.1 and non-grafted control resulted in 100% disease incidence. Remaining rootstocks showed partial wilt incidence. Grafting thus can be taken as an important tool for managing bacterial wilt disease. However, further investigation is recommended for evaluating graft incompatibility.