SUBSTRATOS NA PRODUÇÃO DE MUDAS DE GLIRICIDIA SEPIUM (JACQ) EM SACO PLÁSTICO, EM CASA DE VEGETAÇÃO

Abstract

Gliricidia (Gliricidia sepium) is an original legume from Mexico, with great potential for use in Brazil, and can be used as a tree for shading, landscaping and in animal feed. However, a seedling production chain is necessary, which are used in its propagation, which depends, directly on good quality substrates. In this context, the objective was to evaluate substrates for the production of seedlings of this species. The work was carried out in a greenhouse at the Federal Goiano Institute - Campus Urutaí, in the municipality of Urutaí, GO. The experimental design was completely randomized, with 14 treatments and four replications. The experimental unit consisted of a plastic bag, measuring 10 x 20 cm, filled with substrate, according to each treatment, and a seedling of gliricidia. Plant height, stem diameter and number of leaves per plant were evaluated at 30 and 60 days after emergence. The results were subjected to analysis of variance and, when the F test was significant, the treatment means were compared with each other using the Scott-Knott test, using the statistical software R. The treatments T1, T5, T7 and T10 were the ones that provided greater height and plant, stem diameter and number of leaves. The treatments in group A also provided seedlings with a larger stem diameter, at 30 and 60 days after emergence, similarly to the treatments in group B, however, with lower performance than these for the height of seedlings and the number of leaves