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Pakistan Journal of Biological Sciences

Year: 2001 | Volume: 4 | Issue: 6 | Page No.: 676-678
DOI: 10.3923/pjbs.2001.676.678
Fungitoxic Effect of Biocontrol Agents and Plant Extracts on Seed Borne Fungi of Sorghum (Sorghum bicolor (L.) Moench)
T. Saravanan and V. Valluvaparidasan

Abstract: The fungitoxic effect of biocontrol agents and plant extracts on seed-borne fungi of sorghum was evaluated. The biocontrol agents viz., Bacillus subti/is, Pseudomonas fluorescens and Trichoderma viride significantly inhibited the mycelial growth of sorghum seed-borne fungi viz., Acremonium strictum, Allernaria tennis, Aspergillus niger, Curvularia lunata, Fusarium moniliforme, HelimiMhosporium halodes and Heliininthosporium tetramera. Among them B.subtilis exhibited maximum reduction in mycelial growth of all fungi. Among leaf extracts viz., Albizia amara, Catharanthus roseus and Prosopis jut/flora screened, C. roseus at 20% concentration possessed maximum inhibition of mycelial growth of A. n/`ger, C.lunata and F. moniliforme, where as 20% leaf extracts of P. juliflora inhibited the growth of remaining fungi. The culture filtrates of B. subtitis exerted significant reduction in mycelial weight of all fungi, except C.lunata. The maximum reduction of mycelial weight of all fungi was observed in 20% leaf extract of C. roseus among the plant extracts except for F.moniliforme.

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How to cite this article
T. Saravanan and V. Valluvaparidasan, 2001. Fungitoxic Effect of Biocontrol Agents and Plant Extracts on Seed Borne Fungi of Sorghum (Sorghum bicolor (L.) Moench). Pakistan Journal of Biological Sciences, 4: 676-678.

Keywords: Sorghum, biocontrol agents, plant extracts and seed borne fungi

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