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Revista mexicana de ciencias agrícolas

versión impresa ISSN 2007-0934


REYES TENA, Alfredo; QUINONES AGUILAR, Evangelina Esmeralda; RINCON ENRIQUEZ, Gabriel  y  LOPEZ PEREZ, Luis. Mycorrhizae in Capsicum annuum L. to promote growth and biosecurity against Phytophthora capsici L. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.4, pp.857-870. ISSN 2007-0934.

In order to evaluate the promotion of growth and bio consortia arbuscular mycorrhizal fungi (HMA) against Phytophthora capsici (PC) in pepper plants (Capsicum annuum L.) var. poblano and serrano, in 2014 in the IIAF of the UMSNH an experiment was conducted under greenhouse conditions to evaluate seven inoculates HMA, a positive control (Rhizophagus intraradices) and a negative control (without HMA). At 56 days after inoculation (DDI) of the plants with the HMA, plant height (AP), stem diameter (DT), number of leaves (NH), percentage of mycorrhizal colonization (PCM) and density was recorded HMA spores. At 75 DDI, the plants were infected with a zoospore suspension of PC, to the level of 95 DDI plant damage was assessed by an ordinal six levels of severity qualitative scale and fresh biomass was recorded. The data were subjected to analysis of variance and Tukey test (p≤ 0.05). The PCM found to 93.3%. In serrano pepper plants, the mycorrhizal consortium Cerro del Metate (CM) recorded the highest values of AP, DT and NH, poblano pepper while there were only differences in AP. The inoculated with CM in both varieties of pepper, plants showed a severity level 1 and increased biomass fresh air (15.4 and 6.95 g) compared to non-mycorrhizal plants (8.23 g and 2.83 g). The results showed that CM promoted growth and had a bioprotector effect against PC.

Palabras llave : Rhizophagus intraradices; antagonism; biological control; mycorrhizae; pepper wilt.

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