Potential rhizobacteria for the suppression of bacterial wilt pathogen, Ralstonia solanacearum in eggplant (Solanum melongena L.).
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Title |
Potential rhizobacteria for the suppression of bacterial wilt pathogen, Ralstonia solanacearum in eggplant (Solanum melongena L.).
Not Available |
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Creator |
Ramesh, R., Ghanekar, M.P. and Joshi, A. A.
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Subject |
bacterial wilt
Ralstonia solanacearum eggplant rhizobacteria |
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Description |
Not Available
Study was conducted to select potential antagonistic rhizobacteria for the management of bacterial wilt in eggplant. Sixteen rhizobacterial isolates were selected based on their inhibition efficiency against R. solanacearum. Among the selected isolates, 75 per cent belonged to species of Pseudomonas, which was clustered into five phylogeny groups based on biochemical tests. Efficiency of disease suppression was tested in vivo under greenhouse conditions. The lowest wilt incidence (13.3%) was recorded in RC24 (P. putida) followed by RBh1 (B. sublitis- 20.0%). From the 16 isolates, eight were selected and tested for their efficacy in the field conditions by soil drenching in one month-old transplanted eggplants using talc based formulation. Though antagonist treatments reduced disease incidence, the biocontrol efficiency was less than 36 per cent. This indicates that the biocontrol treatments to be started right from sowing or planting. All the selected antagonists produced Indole Acetic Acid and siderophores, which are responsible for plant growth promotion and few of them produced 2,4-diacetyl phloroglucinal, an antifungal antibiotic, indicating that these rhizobacteria would be highly effective to control R. solanacearum when applied at right time. Not Available |
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Date |
2021-07-22T06:58:51Z
2021-07-22T06:58:51Z 2009-05-01 |
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Type |
Research Paper
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/49326 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Indian Society of Vegetable Science
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