Resumo

SANTANA DIAZ, Tarsicio  e  CASTELLANOS GONZALEZ, Leónides. Biostimulating effect of Trichoderma harzianum Rifai on seedling of Leucaena, Cedar and Saman. Colomb. for. [online]. 2018, vol.21, n.1, pp.81-90. ISSN 0120-0739.  https://doi.org/10.14483/2256201x.11744.

The present article aims to evaluate the biostimulating effect of Trichoderma harzianum Rifai in the seedling production of Leucaena leucocephala (Lam) de Wit., Cedrela odorata L., and Pithecellobium saman (Jacq.) Merr. An experiment for each specie was carried out under nursery conditions. A totally randomized design was used with four parcels by treatment. The treatments were: Trichoderma harzianum to reason of 20 g.L-1 and to 40 g.L-1, and a control. The germination percentage was evaluated, and the morphometric variables diameter of the shaft, height and dry matter of the root and the air part of the plant. The treatments with Trichoderma didn’t increase the germination percentage in cedar, saman and leucaena. T. harzianum increased the height, the number of leaves and the dry biomass of the foliar area in the cedar seedlings, while in leucaena and saman only it incremented the basal diameter of the seedlings.

Palavras-chave : antagonist; biomas; forestall species; germination.

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