Studies on the effect of inoculum concentration and duration of root inocu lation revealed that these factors can directly influence the severity of Kresek (Wilt) phase of rice bacterial blight and inversely the incubation period in expressing the disease symptoms. A minimum inoculum pressure at 107 celis/ml and prolonged root exposure to inoculum (about 48 hi ur above) ware highly favourahla for severe form of wilt appearance under water culture.
© Madras Agricultural Journal. Website design – All rights reserved.