Bio Efficacy of Bioagents against Sclerotium rolfsii: An Incitant of Stem Rot Disease in Groundnut
Divyasree J. P., Usha T. N., Rashmi D., Yashwantha P.
Journal of Advances in Biology & Biotechnology · pp. 982–986 · Published 19 Nov 2024
10.9734/jabb/2024/v27i111682Abstract
Aims: An experiment was carried out to know the bio efficacy of ten bio agents against Sclerotium rolfsii viz, Bacillus subtilis, Pseudomonas fluorescens, Bacillus megaterium, Bacillus velenzensis,Trichoderma longibrachiatum, Trichoderma hamatum, Trichoderma harzianum, Trichoderma afroharzianum,Trichoderma asperelloides, Trichoderma asperellum. Study Design: The experiment was carried out in Completely Randomised Design with three replications. Place and Duration of Study: During 2023-2024 at Department of Plant Pathology, College of Agriculture, Shivamogga. Methodology: The research utilized 10 different bioagents sourced from the Department of Plant Pathology at the College of Agriculture in Shimoga. Results: Statistically difference observed among the bio-agents evaluated with respect to per cent inhibition of mycelia growth of S. rolfsii. Among the fungal bioagents, the highest per cent inhibition of mycelial growth was observed in T. longibrachiatum (55.43%). Among bacterial bio-agents, Bacillus subtilis showed maximum inhibition (42.35 %). Conclusion: This study indicates that fungal bioagents are more effective than bacterial bioagents in controlling the growth of pathogen.
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