Resumen

ESQUIVEL-QUISPE, Roberta. Native arbuscular micorrizogen fungi propagation and their influence in Amylaceous corn production, in Paquecc-Ayacucho. First chapter: Propagation in combined crops in greenhouse. J. Selva Andina Biosph. [online]. 2020, vol.8, n.1, pp.42-52. ISSN 2308-3859.

Arbuscular mycorrhizal fungi (AMF) are microorganisms that represent up to 50% of the biomass of soil microbes, form symbiosis of greater relevance with more than 90% of plants. Considering its importance, the present work was carried out to evaluate the propagation of: AMF consortia from the Agrobiology laboratory (VAP1) and the consortia of arbuscular mycorrhizal fungi from five agroecosystems and a mixture of these consortia, when inoculated in crops associates of "ray grass" (L. multiflorum) and "pea" (P. sativum) under greenhouse conditions in Ayacucho. Seven treatments inoculated with the AMF consortia encoded as VAP1, Zm19, Zm20, Zm21, Zm22, Zm23, ZmM and control (Zm) were considered. The sowing was carried out in sterilized soil in experimental units of 1.5 kg capacity, which were inoculated with an average of 200 g of soil containing HMA consortium spores. Propagation was evaluated using: number of spores, percentage of colonization, dry weight and length of the foliage, these parameters were found to be significantly higher against Zm, except for dry weight and length of foliage. It was concluded that the HMA consortia of Zm23, VAP1, Zm19 and ZmM, spread in the associated cultures of P. sativum + L. multiflorum, producing between 32 to 43 spores g of soil, 15% to 35% of colonization and foliage dry weight higher than the rest of the HMA consortia, that is, the consortia are propagated in associated crops. The VAP1 consortium corresponds to the species of C. luteum and F. geosporum, Zm23, to the species of Gigaspora sp., C. etunicatum and Sclerocystis sp., Zm19, to the species of E. infrequens, C. claraideum and G. microaggregatum, Zm20, to the species of F. geosporum, Glomus sp., and C. etunicatum, Zm21, to the species F. geosporum, Sclerocystis sp and Claroideoglomus sp. It is concluded, to use associated cultures of L. multiflorum and P. sativum for the propagation of the HMA consortia and to test at the field level the HMA consortia of the treatments Zm23, VAP1, Zm19, and ZmM.

Palabras clave : Propagation; mycorrhizal fungi; associated cultures; L. multiflorum; P. sativum.

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