Abstract

RUIZ-SANCHEZ, Michel et al. Evaluation of different strains of arbuscular mycorrhizaein the development of rice plant (Oryza sativa L.) in flooded soil conditions. cultrop [online]. 2016, vol.37, n.4, pp.67-75. ISSN 0258-5936.  http://dx.doi.org/10.13140/RG.2.2.31096.85761.

The arbuscular mycorrhizal fungi are represented in all soils and colonize more than 80 % of terrestrial plants. Their association depends on many edaphoclimatic factors, plant and fungus. In rice cultivation mycorrhizal symbiosis was reported under anaerobic conditions. That is why the research was conducted in order to evaluate the response in rice plants inoculated with different strains of arbuscular mycorrhizal fungi (Claroideoglomus claroideum, Glomus cubense, Rhizoglomus intraradices y Funneliformis mosseae) in flooded conditions of Gley Nodular Hidromorphic Ferruginous Petroferrics soil, with a water depth of 5 cm in the Scientific Technological Base Unit “Los Palacios”. The results demonstrate that rice colonized, even with low percentages due to the presence of the water layer, which affects the establishment of the fungus in the plant. As for height, tillering, dry mass of the aerial part and roots in rice plants increased when there were inoculated with different strains than the control uninoculated observed a symbiotic efficiency higher depending on tillering and dry mass of the aerial part with strains R. intraradices, G. cubense and C. claroideum, but always strains R. intraradices and G. cubense were streigh among the strains of inoculum of AMF that showed greater effect on plant development. These results suggest the use of these strains in the production of bio-fertilizers for rice cultivation

Keywords : mycorrhizal colonization; Rhizoglomus intraradices; Glomus cubense; aerobiosis; flooded.

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