Abstract

Arbuscular mycorrhizal fungi (AMF) are soil organisms, they have symbiotic interaction with most plants, they improve the supply of nutrients, growth, and production of host plants, hence their importance as a biofertilizer in agriculture, the objective of this work was to evaluate the effectiveness and infectivity of species of arbuscular mycorrhizal fungi in Solanum tuberosum L. "papa" unique variety. The experiment was carried out under greenhouse conditions, with five treatments: control, Glomus fasciculatum, Entrophospora infrequens, Funneliformis geosporum, Claroideoglomus etunicatum. 75 spores were inoculated per pot (by species and treatment), evaluating the following indicators: length (cm), number of leaves, fresh and dry weight of the aerial part (g), root length (cm), fresh weight, and root dryness (g), number of tubers and stolons, plant vigor, number of spores and percentage of infection, G. fasciculatum, E. infrequens and F. geosporum were more effective and C. etunicatum, G. fasciculatum and F. geosporum showed higher infectivity.

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