AMI, S. N. and ABDULQAHAR, F.I. 2023. EXISTENCE, MOLECULAR DIAGNOSIS AND GENETIC VARIATION OF DIFFERENT ISOLATES OF ROOT – KNOT NEMATODES Meloidogyne spp. PARASITIZING CUCUMBER PLANTS. Journal of Duhok University. 26, 2 (Sep. 2023), 20-33. DOI:https://doi.org/10.26682/ajuod.2023.26.2.3.