“…However, its exogenous application has been questioned in previous studies of the mini-cutting technique of native species, using juvenile propagules, where the rooting of mini-cuttings with IBA is not favoured, and might actually be harmful to the induction of root beginnings, as for P. peroba. This tendency has been corroborated for Cedrela fissilis (Xavier et al, 2003), Anadenanthera macrocarpa (Dias et al, 2012), Araucaria angustifolia (Pires et al, 2013)este trabalho objetivou avaliar a influência de concentrações de ácido indolbutírico (AIB, Tibouchina sellowiana (Fragoso et al, 2017), Peltophorum dubium (Mantovani et al, 2017), and Plathymenia reticulata (Pessanha et al, 2018). The application of high concentrations of synthetic auxin may lead to toxicity owing to hormonal imbalance (Rinaldi et al, 2018).…”