Vol. 7, Issue 6 (2019)
Efficacy of different bioagents against stem rot of groundnut incited by Sclerotium rolfsii under in vitro conditions
Author(s): Mool Chand Meena, Ashok Kumar Meena and Prabhu Narayan Meena
Abstract: Stem rot caused by Sclerotium rolfsii considered as one of the most devastating disease of groundnut. The main aim of this study was to find out the potentiality of various fungal and bacterial bioagents viz., Trichoderma harzianum (BKN), T. viride (BKN), T. harzianum (JPR), T. viride (Tv-1), T. atroviride (Ta-7), T. atroviride (Ta-15), T. longibrachiatum, P. fluorescens (Pf-BKN), P. fluorescens (Pf-1), P. fluorescens (Pf-2), B. subtilis (Bs-BKN), B. subtilis (Bs-1) and B. subtilis (Bs-2) against the S. rolfsii. Among the fungal bioagents, maximum growth inhibition of S. rolfsii was recorded with T. harzianum (Th-BKN) (88.66%) followed by T. viride (Tv-BKN) (85.27%) and T. harzianum (Th-JPR) (84.93%). Similarly, B. subtilis (Bs-BKN) (70.54%) and P. fluorescens (Pf-BKN) (63.79%) also gave maximum mycelial growth inhibition of S. rolfsii under in vitro conditions. Culture filtrate of different bioagents at the concentration of 1, 2.5 and 5% were tested and the maximum growth inhibition of S. rolfsii was recorded with T. harzianum (Th-BKN) 88.64 per cent at 5 per cent concentration followed by T. viride (Tv-BKN) (84.28%). The results indicated that T. harzianum (BKN), T. viride (BKN), T. harzianum (JPR), P. fluorescens (Pf-BKN), and B. subtilis (Bs-BKN), potentially control the growth of S. rolfsii and could be used for further exploitation under field conditions.
Pages: 259-263 | 532 Views 65 Downloads
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How to cite this article:
Mool Chand Meena, Ashok Kumar Meena, Prabhu Narayan Meena. Efficacy of different bioagents against stem rot of groundnut incited by Sclerotium rolfsii under in vitro conditions. Int J Chem Stud 2019;7(6):259-263.
