ENRAIZAMENTO DE MINIESTACAS DE Croton urucurana Baill. EM FUNÇÃO DO VOLUME DO TUBETE E POSIÇÃO DO RAMO NA PLANTA MATRIZ.

In the present work, the objective is to evaluate or reduce the mini-cuttings of Croton urucurana Baill., Made from different positions of the plant branch and different recipients. As the used mini-cuttings were collected from mini-stumps, originating from the propagation of seminars. The procedures were organized in a 2 x 3 factorial scheme, with two types of containers (55 cm³ and 110 cm³) and three types of minicuttings in relation to the position in the plant branch (apical, semi-woody and woody). The design used was randomized blocks, with 4 replications. The experiment was installed in the greenhouse and after 25 days it was transferred to the shade house, where it remained for 10 days, totaling 35 days. Prohibited when leaving the greenhouse and shade as variables, in percentage: rooting, savings - considering live and unrooted mini-cuttings, budding and leaf maintenance. In both statistics there was a significant interaction for the percentage of leaf maintenance, with the container with variable variables and the type of minicutting in rooting, survival and sprouting being found or with significant effect. As for rooting, in estimated embassies, if the mini-cuttings of apical origin result in better rooting when compared to the woody ones, although they did not differ statistically from the semi-wood ones. In view of the results obtained, we conclude that: mini-cuttings made from apical and semi-wood parts of the branch of the optimized matrix plant or rooting; 55 cm³ or 110 cm³ containers can be used for vegetative propagation of Croton urucurana by mini-cutting. [ABSTRACT FROM AUTHOR]