Studies on Varietal Resistance in Soybean against Root Rot and Collar Rot Diseases
Swapnil Konde
Post Graduate Institute, Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra - 444104, INDIA
Rajkumar Kothikar*
Post Graduate Institute, Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra - 444104, INDIA
Mina Koche
Post Graduate Institute, Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra - 444104, INDIA
Amit Surpam
Post Graduate Institute, Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra - 444104, INDIA
DOI: NIL
Keywords: Soybean, Screening, Root rot, Collar rot
Abstract
Root rot caused by Macrophomina phaseolina and collar rot caused by Sclerotium rolfsii are the major threat for the successful production of soybean in India. Use of resistant varieties is considered as an economical and durable method of controlling these diseases. Therefore, fifteen soybean cultivars were evaluated by pot culture under epiphytotic conditions. Study of varietal resistance revealed that, among 15 varieties tested, none of the cultivar was found immune as well as moderately resistant or tolerant to both the diseases. Five cultivars (JS-93-05, TAMS-98-21, AMS-99-24, NRC-64, JS-335) were reported moderately susceptible and ten (JS-71-05, AMS-99-16, AMS-92-32, TAMS-38, NRC-67, AMS-99-3, AMS-47, Bragg, AMS-353, AMS-56) were found highly susceptible to root rot and collar rot diseases.
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Reference
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