PLANTAS FITOTERÁPICAS: EFEITO DE DIFERENTES CONCENTRAÇÕES DE AIB NO ENRAIZAMENTO DE Arrabidaea chica (HUMB. & BONPL.) B. VERL. (PARIRI)

The objective of this paper was to evaluate the influence of different concentrations of the IBA (indolbutyric acid) growth regulator on the rooting of pariri minicuttings. The study was carried out in the Embrapa Eastern Amazon Garden, where were used as explants nodal segments with approximately 2cm length. The experimental design was completely randomized with five treatments, with T1 = 0 (control); T2 = 50; T3 = 100; T4 = 150; And T5 = 200 ppm (ml.L-1) of indolebutyric acid with 20 replicates. After 45 days the percentage of rooting, number of roots and length of the largest root were evaluated and compared between the means of the treatments. According to the data collected, T1 (Control) treatment presented a more significant result (40%) in relation to rooted cuttings. Treatment (T5) was less significant for all variables.