This work aimed to develop a methodology of vegetative propagation for the vine rootstock '43-43'. Hardwood cuttings collected in August, softwood cuttings collected in January and semi-hardwood cuttings collected in March were immersed in solutions, by 10 minutes, containing different doses of the plant regulators paclobutrazol (0, 100 and 200 mg.L-1) and indole butyric acid (0, 500 and 1,000 mg.L-1), combined or not, totalizing nine treatments for each kind of cutting. Sixty days after planting the cuttings, the following variables were evaluated: percentage of rooted cuttings, number of roots, fresh weight of roots and percentage of sprouted cuttings. The hardwood cuttings presented 100% of sprouted cuttings, but it was not verified rooting, independent of the utilization of plant regulators. The softwood cuttings that were not treated with plant regulators showed 92% of rooting and 84% of sprouting. For this king of cutting the IBA at 1,000 mg.L-1 increased the number of roots. The semi-hardwood cuttings had the highest percentage of rooting (23.5%) when they were treated with IBA at 1,000 mg.L-1. This treatment also propitiated the maximum fresh weight and number of roots, nevertheless, these values were inferior to those verified for softwood cuttings.
grapes; cuttings; rooting; paclobutrazol; IBA; auxins
