Evaluation of fungicides against Sclerotium rolfsii incitant of collar rot disease of chickpea Kumari Priyanka1, Gupta Ramesh Nath1,*, Sah Shyam Babu2, Prasad Shambhu3 1Department of Plant Pathology, Bihar Agriculture College, BAU, Sabour, Bhagalpur 2Department of Entomology, Mandan Bharti Agriculture College, Agwanpur, Saharsa, BAU, Sabour 3Department of Agronomy, Bihar Agriculture College, BAU, Sabour, Bhagalpur *Correspondence email: rameshnathgupta@gmail.com
Online published on 28 November, 2023. Abstract Chickpea is an important legume grown throughout the world. Collar rot disease incited by Sclerotium rolfsii is an important economic disease of chickpea and causes 10-30% yield loss. Under favorable weather circumstances such as heavy rainfall and soil temperature (25-30°C) disease can cause 55-95% mortality at the seedling stage. It is more prevalent and causes heavy yield loss when chickpea are sown after harvesting rice having stubbles in fields. For the management of this destructive pathogen, different fungicides were evaluated under both in vitro and in vivo conditions. In vitro evaluation of fungicides in three concentrations (100, 200, and 300 ppm), the combination fungicide (carbendazim 12% + mancozeb 63%) was found most effective in inhibiting complete mycelial growth of S. rolfsii at each concentration. Under in vivo evaluation, seed treatment with a combination fungicide (carbendazim12% + mancozeb63%) @ 2 gm/kg seed was found most effective in controlling collar rot disease as well as enhanced yield attributing traits and yield. Minimum disease incidence (9.69 %) and highest seed yield (1339.91kg/ha) were recorded with the treatment of combination fungicide (carbendazim 12% + mancozeb 63%) as compared to control (22.49 %) and (1094.96 kg/ha), respectively. Top Keywords Collar rot, Sclerotium rolfsii, Chickpea. Top |