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Subject: Nematology × Author: Dutta, Ananya × End date: 2017 × Start date: 2013 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    INTEGRATED MANAGEMENT OF Meloidogyne incognita AND Sclerotinia sclerotiorum DISEASE COMPLEX ON FRENCH BEAN (Phaseolus vulgaris L.)
    (AAU, Jorhat, 2017-07) Dutta, Ananya; Borah, A.
    In the present study on the interaction of Meloidogyne incognita and Sclerotinia sclerotiorum on French bean, the results indicated that the dual inoculation treatments significantly decreased plant growth parameters over the treatments with S. sclerotiorum @ 0.2% w/w and M. incognita @ 1000 J2/kg of soil. The treatment with M. incognita @ 1000 J2/kg of soil and S. sclerotiorum @ 0.2 % w/w simultaneous inoculation was statistically superior in decreasing the plant growth parameters of French bean. However, the number of galls, eggmasses and final nematode population in soil were found maximum in single inoculation treatment than dual inoculation treatments. The highest number of galls, eggmasses and nematode population were observed in the treatment with M. incognita @ 1000 J2/kg of soil. Maximum disease incidence was recorded in the treatment with M. incognita @ 1000 J2/kg soil + S. sclerotiorum @ 0.2% w/w after 15 days inoculation. Studies on the efficacy of biocontrol agent and chemicals against M. incognita and S. sclerotiorum disease complex on French bean under net house condition showed that all the treatments differed significantly over control in respect of increasing plant growth parameters. The seed treatments with T. harzianum @ 5ml/ kg + seed treatment with carbendazim 0.05% w/w + soil application with carbofuran @ 0.5 kg a.i/ha was found to be most effective in increasing plant growth parameters of French bean. All the treatments significantly decreased the number of galls, eggmasses and final nematode population in soil except control and the treatment with carbendazim @ 0.3% w/w. However, the treatment with carbofuran @ 1 kg a.i/ha was found to be best in suppressing the number of galls, eggmasses and final nematode population in soil. Maximum reduction in disease incidence was recorded in the seed treatment with T. harzianum @ 5ml/ kg + seed treatment with carbendazim 0.05% w/w + soil application with carbofuran @ 0.5 kg a.i/ha.