Borah, AparajitaLourembam, Manjeet2024-07-112024-07-112023https://krishikosh.egranth.ac.in/handle/1/5810211827In the present study on screening of okra varieties against root-knot nematode, Meloidogyne incognita, all the nine varieties of okra viz., Kashi Lalima, NOH-7100, Laksmi-500, OH-940, Basanti, S-51, Arka Abhay, BHS-280 and Pusa sawni were found to be susceptible to M.incognita. In the study on the efficacy of essential oil for the management of root-knot nematode, M.incognita in okra under net house condition showed that all the treatment were effective in increasing plant growth parameters shoot length, fresh weight and dry weight of shoot and root in okra. All the treatments significantly decreased numbers of galls, egg masses and final nematode population in soil. The treatment with Nimitz@1.5g/pot showed maximum increase in plant growth parameters with reduction of galls,egg masses and nematode population in soil.Among the different treatments with essential oils, seed treatment with Neem oil@20%v/w was found to be most effective in increasing plant growth parameters with reduction in numbers of galls, egg masses and nematode population in soil.EnglishThesis