The interaction of the mycorrhizae of the fungus Rhizophagus irregularis (Walker & Schüßler, 2010) (Glomerales: Glomeraceae) and the stem and bulb nematode (Ditylenchus dipsaci Kühn, 1857) (Tylenchida: Anguinidae) on the onion plant (Allium cepa L.) (Asparagales: Amaryllidaceae)

The stem and bulb nematode, Ditylenchus dipsaci, is a plant parasite that causes significant economic losses to growers of the main host plant, onion. Fungal mycorrhizae can increase growth induce systemic resistance against many diseases pests. However, no evidence detailed study was found regarding relationship with D. dipsaci. In this study, effects fungus, Rhizophagus irregularis, on onion Allium cepa, were investigated. did not significantly reduce nematode penetration multiplication roots. Mean rates for mycorrhizal non-mycorrhizal plants 13.5% 7.5%, respectively. rate between 0.6 1.3 in chamber 0.7 3.6 greenhouse. Fresh weight 0.9-2.2 g Since R. irregularis increased by increasing its tolerance it would be beneficial levels growing areas where present.