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Indole-3-butyric acid (IBA) is a plant growth regulator widely used to induce rooting of cuttings. The objective of this work was to evaluate the effect of different concentrations of IBA and of two cuttings types in vegetative propagation of Senna alata (Linnaeus) Roxburgh. The experiment was established in a completely randomized design with four repetitions, in factorial 4 x 2, using four concentrations of A...