Abstract

LOPEZ-GOMEZ, Bety Fabiola; ALARCON, Alejandro; QUINTERO-LIZAOLA, Roberto  and  LARA-HERRERA, Alfredo. Selecting strains of arbuscular mycorrhizal fungi in two production systems of chili pepper. Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.6, pp.1203-1214. ISSN 2007-0934.

The selection of native microorganisms of a region for biofertilizer production, gives higher possibilities of adaptation and multiplication thereof on the ground, because, among these, functional diversity of arbuscular mycorrhizal fungi (AMF) may depend on the origin of the isolates, rather than the fungal species. With the aim of selecting AMF native strains isolated from soil of two production systems of Mirasol chili pepper: technified (TEC) and traditional (TRA); as trap crop for selecting AMF Mirasol chili pepper seedlings which were inoculated with soil and TRA and TEC and a non-inoculated control, for selecting parameters were considered infectivity and effectiveness. Stablishing in a greenhouse 14 treatments with TEC and 15 with TRA, each with eight repetitions. For 40 days, the variable plant height and dry biomass were measured (leaves, stem, root and total), the percentage of root colonized at 90 days after transplantation was also evaluated. The TEC-11 and TRA-14 were those with the treatments most consistent by measured parameters, they had a total dry biomass production of (0.66 and 0.69 g, respectively), with percentage of root colonization (and 33.89 36.67, respectively).

Keywords : Capsicum annuum L.; isolation; mycorrhiza; soil; root colonization.

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