Morphology Root-Knot Nematode Meloidogyna incognita on Cucumber Plant in Southern Iraq

Abstract

Isolated root-knot nematodes. Meloidogyne sp from the roots of the cucumber plant from different regions of southern Iraq, and the morphological study showed the presence of type M. incognita. It showed the perineal pattern characterized by the presence of a squarish dorsal arch located at the dorsal apex of the perineal pattern, and jagged and jagged cuticle lines, in addition to the unclear lateral fields and the presence of wrinkles or breaks instead. The measurements of the second larvae phase showed that the average body length (L) was 444 μm, while the largest body length was 496 μm and the lowest body length was 386 μm, the average length of the spear was 11.8 μm, the largest length of the shaft was 12.5 μm and the minimum length was 11 μm. The average tail length was 61.9 μm, the largest tail length was 66 μm, and the minimum tail length was 60 μm. As for hyaline, the largest length was 13 μm and the lowest length was 11 μm.

Molecular Characterization of Root-Knot Nematodes Meloidogyne spp. Isolated from Cucumber Farms in Different Iraqi Regions

“…The M. hapla species was found in two samples from Shuan Kara and two samples from Rahmaniyah, representing 15.4% and 40% of the samples in each respective region. This aligns withAbed et al (2023) ndings, indicating that the M. hapla species is among the four major species prevalent in Iraqi soils. In contrast,Rashidifard et al (2019) observed that only 3% of South African samples were attributed to the M. hapla species.…”