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Subject: Nematology × Author: Roy, Pallabi × Start date: 2019 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Biomanagement of disease complex of Meloidogyne incognita and Fusarium oxysporum f.sp ciceri on chickpea (Cicer arientinum., Butler 1918)
    (2021) Roy, Pallabi; Borah, A.
    In the present study on the interaction of Meloidogyne incognita and Fusarium oxysporum f.sp ciceri on chickpea, the result indicated that dual inoculation treatments significantly decreased plant growth parameters over the treatment with M. incognita @1000 J2/kg soil and F. oxysporum @ 2% (w/w). The treatment with M. incognita @1000 J2/kg soil + F. oxysporum @ 2% (w/w) after 15 days of inoculation was statistically superior in decreasing the plant growth parameters of chickpea. However, number of galls, eggmasses, final nematode population was found maximum in single inoculation treatment than dual inoculation treatments. The highest number of galls, eggmasses, final nematode population were observed in the treatment with M. incognita @1000 J2/kg soil. The maximum disease incidence was recorded in the treatment with M. incognita @1000 J2/kg soil and F. oxysporum @ 2% (w/w) after 15 days of inoculation. Studies on the management of disease complex of Meloidogyne incognita and Fusarium oxysporum on chickpea with microbial consortia, vermicompost and Glomus fasiculatum alone or in combination under microplot condition showed that all the treatments differed significantly over untreated control in respect of increaseing plant growth parameters and yield of chickpea. The seed treatment with microbial consortia @ 5ml/l + soil application of vermicompost enriched microbial consortia @ 2t/ha + seed treatment with microbial consortia @ 5ml/l + soil application of Glomus fasciculatum spores/m2 was found to be most effective in increasing plant growth parameters, yield, N,P, and K content in soil. All the treatment significantly decreased the number of galls, eggmasses, nematode population and fungal population in soil and percent disease incidence. In the pilot field trial, conducted at farmers field with the best treatment combination found under microplot trial for the management of disease complex of Meloidogyne incognita and Fusarium oxysporum on chickpea showed that the seed treatment with microbial consortia @ 5ml/l + soil application of vermicompost enriched microbial consortia @ 2t/ha + seed treatment with microbial consortia @ 5ml/l + soil application of Glomus fasciculatum spores/m2 effective in increasing plant growth characters, yield and reducing in number of galls, final nematode population in soil and percent disease incidence over untreated control.