The effect of the indol butiric acid (IBA) and the naftalenoacetic acid (NAA) in the rooting of 'Riparia de Traviú' cuttings obtained from the sproutings of the plants, before being grafted, in order to obtain new rootstocks. The experiment was conduted under green house conditions, at the orchard of the Lavras Federal University (UFLA). The herbaceous cuttings, measuring 15 cm of lengh 8 mm of diameter and without leaves, were treated with IBA and NAA (0, 1000, 2000, 3000 and 4000 mg.L-1) for 15 seconds and taken to polystyrene trays filled with vermiculita. After 60 days, the percentage of rooting and sprouted cuttings, the number of leaves and sprouts, the roots average length and the dry matter of the sproutings were evaluated. There was not signifficant effect of the IBA and NAA dosages for all the characteristics evaluated. The rooting percentage 56,73% not using of auxins, indicating that this can be a way to antecipate the obtaining of new rootstocks, by using material obtained from sproutings.
Vitis spp.; indol butiric acid and naftalenoacetic acid
