Resumo

OJEDA, L; FURRAZOLA, E  e  HERNANDEZ, Consuelo. Arbuscular mycorrhizae in legumes of the livestock production enterprise El Tablón, Cuba. Pastos y Forrajes [online]. 2014, vol.37, n.4, pp. 392-398. ISSN 0864-0394.

On a Grayish Brown soil, a study was conducted to determine the presence of arbuscular mycorrhizae associated to the roots of the species: Leucaena leucocephala cv. Perú, Centrosema pubescens IH-129, Centrosema pubescens CIAT-482, Centrosema macrocarpum CIAT-5434, Canavalia ensiformis and Desmodium sp., in natural areas of the dairy laboratory farm No. 3 of the Livestock Production Enterprise El Tablón (Cumanayagua, Cienfuegos province, Cuba). An efficiency test was also made on the native arbuscular mycorrhizal fungi (AMF), under semicontrolled conditions (glass house), and with a randomized block design for each species, two treatments and three replications. Under these conditions, the forage legumes were naturally colonized by mycorrhizae, but with low colonization: between 21 and 34 % in the first sampling, and between 14 and 20 % in the second one. When the native AMF were inoculated in an indicator crop (forage sorghum) there were no significant differences regarding the leaf content of phosphorus and the colonization; while the DM yield was slightly benefited in Desmodium sp. in the two variants; therefore, it cannot be ascribed to the effects of AMF. Such results showed the need to test commercial AMF strains in legume species under these conditions and soil type.

Palavras-chave : legumes; vesicular arbuscular mycorhizae.

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