National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Fungal phytopathogens cause serious losses of crop production worldwide. One of the most common diseases caused by fungal phytopathogens is damping off disease. Damping-off inhibits the initial stages of plant of growth and effectiveness, resulting in a serious hazard to horticulture and agriculture. Chemical control of these phytopathogens are hazardous to human health and the environment and lead to environmental pollution. Bacteria play a key role as biocontrol agents for plant disease control. For this reason, the present study was conducted to determine the antagonistic potential of rhizospheric soil bacteria against selected phytopathogenic fungi such as Fusarium oxysporum, Rhizoctonia solani, Botrytis cinerea and Alternaria solani by dual culture assay. The growth inhibition by each microbial strain of the fungal phytopathogens was measured and compared against a control. Among the tested pathogens, Botrytis cinerea was most inhibited (68.8%), followed by Alternaria solani (59.0%) and Fusarium oxysporum (57.7%). In contrast, Rhizoctonia solani exhibited the least inhibition (21.3%). Among the isolates, A5 showed the strongest broad-spectrum antagonism (74.8% inhibition), whereas B24 exhibited the weakest activity (27.4%). These findings highlight the potential of specific bacterial strains, particularly A5 (74.8%), C5 (64.2%), and C6 (60.2%), as promising biocontrol agents.
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