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Malathi, S.
- Management of Root Rot Disease in French Beans (Phaseolus vulgaris) by using Microbial Consortium
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Affiliations
1 Horticultural Research Station (T.N.A.U.), Ooty (T.N.), IN
1 Horticultural Research Station (T.N.A.U.), Ooty (T.N.), IN
Source
International Journal of Plant Sciences, Vol 14, No 1 (2019), Pagination: 28-32Abstract
Root rot disease of beans is caused by Rhizoctonia solani. Biocontrol agents were tested for their antagonistic activity against ischolar_main rot pathogen Rhizoctonia solani. Among the tested isolates, Trichoderma viride recorded the maximum (86.04 %) inhibition on the mycelial growth of pathogen followed by Pseudomonas fluorescence which recorded 79.12 per cent inhibition on the mycelial growth. Treatment with (SA+ST with P. fluorescens + T. viride) + Neem cake was recorded maximum (78.55%) disease reduction in the field condition with the yield of 2654 kg/acre. Combined application of biocontrol agents having ability to reduce ischolar_main rot disease in French bean and increase the yield siginificantly.Keywords
Beans Root Rot, Rhizoctonia solani, Trichoderma sp., Pseudomonas sp., Biological Control.
References
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- Biological Control of Cabbage (Brassica oleracea var. capitata) Head Rot Disease Caused By Sclerotinia sclerotiorum
Abstract Views :257 |
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Authors
Affiliations
1 Rice Research Station (T.N.A.U.), Tirur, Tiruvallur (T.N.), IN
1 Rice Research Station (T.N.A.U.), Tirur, Tiruvallur (T.N.), IN
Source
International Journal of Plant Sciences, Vol 14, No 2 (2019), Pagination: 57-61Abstract
Head rot disease of cabbage is caused by Sclerotinia sclerotiorum. Efficacy of various biocontrol agents were evaluated for their potential to manage the head rot of cabbage under invitro condition. Among the tested isolates, Trichoderma viride recorded the maximum (85.71%) inhibition on the mycelial growth of pathogen followed by Pseudomonas fluorescens which recorded 79.15 per cent inhibition on the mycelial growth of Sclerotinia sclerotiorum. Based on the laboratory analysis, effective biocontrol agents were evaluated under glass house and field condition. Among the treatments tested in field condition, combined application of biocontrol agents (ST+ SA with (Pf + Tv) + Foliar spray with Pf) significantly recorded maximum (75.26) per cent disease reduction. These biocontrol agents were used an alternative to the chemical for controlling the cabbage head rot disease and enhanced the plant growth parameters and there by increased yield in cabbage.Keywords
Cabbage, Head Rot, Sclerotinia sclerotiorum, Biocontrol Agents, Trichoderma viride, Pseudomonas fluorescens.References
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- Management of Wilt and Dry Root Rot Diseases of Redgram [Cajanus cajan (l.) Millsp.] by using Actinomycetes
Abstract Views :366 |
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Authors
Affiliations
1 Rice Research Station (T.N.A.U.), Tirur, Tiruvallur (T.N.), IN
1 Rice Research Station (T.N.A.U.), Tirur, Tiruvallur (T.N.), IN
Source
International Journal of Plant Sciences, Vol 15, No 2 (2020), Pagination: 96-100Abstract
Actinomycetes were tested for their antagonistic activity against Fusarium udum and Macrophomina phaseolina under in vitro condition. Among the tested isolates of Actinomycetes AC (5) reported highest 82.85 per cent reduction of mycelial growth of Fusarium udum and 85.13 per cent reduction of mycelial growth of Macrophomina phaseolina. In the field experiment, five treatments were tested for the management of wilt and dry ischolar_main rot disease, T3- ST+ SA with Actinomycetes (AC 5) significantly recorded 71.92 and 70.38 per cent reduction of the wilt and dry ischolar_main rot diseases, respectively. These biocontrol agents were used an alternative to the chemical fungicide for controlling the wilt and dry ischolar_main rot incidence and enhanced the plant growth parameters and there by increased yield in redgram.Keywords
Redgram, Fusarium udum, Macrophomina phaseolina, Actinomycetes, Management.References
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