Abstract

The search for alternatives to allow the production of fruit seedlings is constant. Nowadays, the preference is to form the plants in containers because the advantages in relation to good root development and time for obtaining of seedlings, by using substrate prepared in a controlled environment. The study was carried out with the aim of evaluating the substrate formulation with the hydrogel polymer in rooting of blackberry cv. Brazos treated with IBA. There were used the completely randomized design in a 4 x 2 factorial arrangement with four replications and six cuttings per plot, the factors were the hydrogel polymer concentrations (Supragua®) : 0, 3, 6 and 9 g L-1 and indolbutiric acid (IBA): 0 and 3000 mg L-1. After 90 days were evaluated the following variables: rooting percentage, the number of roots, shoots and leaves, root and shoot length (cm). Treatment of cuttings with IBA did not influence the rooting. The incorporation to 5.6 g L-1 hydrogel polymer increased rooting and better seedling development. The roots number favored the shoot length and the leaves issue in cuttings of blackberry cv. Brazos.

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