POTENCIAL DE ENRAIZAMENTO DE MINIESTACAS DE Pinus Taeda L. PROVENIENTES DE BROTAÇÃO APICAL DE MUDAS JOVENS

This study aimed to evaluate the influence of the genotype (family) on the rooting potentiality of Pinus taeda L. mini-cuttings collected from apical coppicing of seedling with 90 days of age. The cuttings were distributed in a randomized blocks in a 2 x 10 factorial design. Two types of medium (Plantmax® and Vermiculite®) were used in combination with ten different families. The 114 mini-cuttings plots were distributed into four blocks. Rootings were evaluated after 70 days. Based on the results, it was possible to verify that the young coppicing present high capacity of rooting (an average of 84.55%) and no statistically significant differences were observed among the ten open pollination families in relation to the percentage of rooting Rooting using Plantmax® medium (92.7%) was higher than rooting using Vermiculite® (64.3%) medium