The objective of the present research to verify the was influence of the indol-3-butyric acid (IBA) on rooting of cutting of araticum-de-terra-fria and araticum-mirim. Semi hardwood cuttings standardized with 15 cm of length, one pair of leaves and diameter of 0,4-0,5 cm, were treated with different concentrations of IBA (0, 1000, 2000 and 3000 mg.L-1) for five seconds and later on placed in trays of polypropylene of 72 cells (120 cm³), containing as substrate vermiculita, being transferred to a camera of intermittent nebulization. After 60 days, the alive cutting, callous, rooting and sprouting percentages, and also, the number of rootses emitted by cutting were evaluated. The araticum-de-terra-fria promoted better results for all the analyzed variables, in comparison to araticum-mirim. IBA just influenced the callous, rooting and sprouting percentage for the araticum-de-terra-fria. Growing concentrations of IBA increased the callous and rooting percentage to the values of 89 and 56.4%, respectively, but on the other hand, they lineally decreased sprouting percentage.
Propagation; cutting; indol-3-butyric acid; IBA
