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Merouche Abdelkader

  • Biodiversity Journal, 14 (2): 0329-0339

    Rahim Zohra, Merouche Abdelkader & Belhacini Fatma
    Study on plant parasitic nematodes (Pratylenchoides Winslow, 1958, Ditylenchus Filipjev, 1936 and Longidorus Micoletzky, 1922) infecting durum wheat (Triticum durum Desf., Poales Poaceae) in Beni-Slimane (Algeria)
    https://doi.org/10.31396/Biodiv.Jour.2023.14.2.329.339

    ABSTRACT
    The study on plant parasitic nematodes (Pratylenchoides Winslow, 1958, Ditylenchus Filipjev, 1936 and Longidorus Micoletzky, 1922) infecting durum wheat (Triticum durum Desf.) like a waha variety in the pilot farm of Si Achour (Medea) revealed that three taxa of phytoparasite nematodes belong to two orders (Tylenchida and Dorylaimida). The degree of infestation by these parasites varies from plot to plot and within the same plot. Variation in infestation is the result of several factors related to the growing system and environmental conditions. The study was conducted in two fields of durum wheat that have different textures throughout the vegetative cycle. The objective was to study the dynamics and density of nematodes under the influence of a few various physical-chemical factors. Besides, nematodes’ soil and root were extracted respectively by the Cobb (1918) method (so-called “bucket” method) and the Baermann (1917) method that are modified using Coyne et al. (2010). At both experimental sites, 3 species of phytoparasitic nematodes were recorded during the maturation stage. These species include Pratylenchoides sp., Ditylenchus sp., Longidorus sp. and some saprophagous nematodes. Among them, Ditylenchus sp. and saprophagenenes represent the vast majority of individuals found in the soil. Alternatively, durum root nematodes are represented mainly by two species: Pratylenccoides sp. and Ditylenchus sp.