مرکز منطقه ای اطلاع رساني علوم و فناوري - Distribution and Identification of Root-knot Nematode (Meloidogyne spp.) Species in Peach Growing Areas of Aegean Region

Abstract :

Objective: This study was carried out in order to determine the distribution and distribution of the species of Root-knot nematode (Meloidogyne spp.) in peach growing areas in Aegean Region. Material ve Methods: The main material of the study consisted of soil and plant root samples taken from a total of 239 horticultural peach cultivations in the Aegean Region. The samples were taken 30-60 cm deep from 3-4 points from the crown projection of the tree. In the analysis studies, the prevalence in the provinces was determined by examining the population densities of 100 gr in the soil. In order to determine the presence of moving nematodes in soil samples, the Enhanced Baermann Funnel Method (Hooper, 1986) was used. The root-knot nematode adult females present in the dish root samples were also obtained with the help of needles and lancet. In the diagnostic studies, permanent slides were obtained the anal sections of the females by taking the perineaI pattern and thus the present nematode species was determined. Results: According to analyze, Root-knot nematodes were found in izmir s districts, such as Sel uk, Tire and Torbali, whereas there was not found the nematodes in districts of Manisa and Aydin Provinces. In particular, Root-knot nematodes were found more abundant at some areas which Solanaceae crops, such as tomatoes, peppers, eggplant, were grown as intermediate in the peach orchard. As a result of identification studies, Meloidogyne incognita (Kofoid, White 1919) (63,4 %) was found more common than Meloidogyne javanica (Treub, 1885) (33.6 %) in peach-growing areas. Conclusion: It is considered that the vegetables such as tomatoes, peppers, eggplant, okra, melons, watermelons in the peach gardens should not be growed as intermediate in peach gardens and drip irrigation should be preferred instead of flood irrigation. In addition, selection of rootstocks which is resistance to root knot nematodes are should be preferred at the new garden plant.