Resistance of local okra cultivars against Meloidogyne incognita (Kofoid & White, 1919) (Nematoda: Meloidogynidae), effects of nematode infestation on growth parameters and leaf macro- micronutrients

Okra is an important species of vegetable grown in Turkey and around the world. Root-knot nematodes cause serious yield losses vegetables. Twenty-six cultivars okra were obtained from Aegean Agricultural Research Institute 2002. Resistance this to nematode was determined changes induced with infestation on plant morphology macro- micronutrients leaves measured. The experiments conducted completely randomized design four replicates climate-controlled glasshouse at Alata Horticultural 2019. tested against Meloidogyne incognita (Kofoid & White, 1919) (Nematoda: Meloidogynidae) 25 ± 2ºC. Sixty days after inoculation, root gall indexes varied average 4.56. Compared uninoculated controls, inoculated reduced height by 46.0%, stem thickness 9.06%, lengths 39.7%, leaf widths 15.1%, 20.5% increase weight 14.5%. Leaf determined. control, inoculation N, P, K Mg concentrations 2.31, 5.85, 5.24 10.3%, respectively, increased Ca, Fe, Zn, Mn Cu 7.91, 17.0, 13.4, 118 15.6%, respectively.