Collar rot of chilli

Collar rot (Sclerotium rolfsii Sacc.) of chilli (Capsicum annuum L.) is one of the devastating soil-borne diseases of fungal origin, due to which 16–80% yield loss is recorded annually according to the severity of the disease. An integrated disease management approach was developed for the management of collar rot of chilli using fungicide, biocontrol agents and an organic amendment.

8p nguaconbaynhay7 15-08-2020 21 1   Download

Collar rot of chilli caused by Sclerotium rolfsii Sacc. is currently occurring in chilli growing areas of Marathwada region in India. The genetic diversity among eight chilli S. rolfsii isolates collected from eight districts covering various geographic areas of Marathwada region of Maharashtra state were analysed using random amplified polymorphic DNA (RAPD) using five random primers. Size of DNA fragments amplified by the five primers ranged from 0.1 Kb to 10 Kb indicating polymorphism among S. rolfsii isolates. RAPD banding profiles with five different random primers viz.

9p quenchua6 15-06-2020 12 1   Download

Bacillus subtilis a gram positive, endospore forming bacteria play a major role in biocontrol and PGPR activities. Thirty isolates of B. subtilis were obtained from different rhizosphere soil samples from different parts of North Eastern Karnataka region. All the isolates were rod shaped, positive for gram reaction, endospore, oxidase, catalase, starch hydrolysis, negative for indole, KOH test and green coloured colonies were grown on Hichrome Bacillus agar medium.

6p trinhthamhodang5 16-05-2020 12 1   Download