The present study objective was to evaluate gibberellic acid (GA3) (a.i.), in the concentrations of 50 and 100 mg L-1, increased by the ExtravonTM (0.05%) adhesive spreader in two leaf applications, and the use of paclobutrazol (PBZ) (a.i.), with dosages of 2 and 4 g per plant, and a single application on the soil at yellow passion-fruit flowering anticipation in Araguari-MG. The experimental design was in split-plots with five treatments (plots) and two treatments (subplots), with four repetitions and four plants per plot. Twelve tertiary branches were identified per plot, with six branches exposed to predominantly morning brightness and six exposed to predominantly evening brightness. Both sides were evaluated at 103 days after the first treatment application, whereas the length of the branches and the internodes, number of nodes and number of floral buds were observed. The regulators did not promote significant responses for internodes length and floral buds number. However, an indication of a greate number of flower buds was observed with 2 g of PBZ. The larger length of branches was obtained with 100 mg L-1 of GA3 and under the morning brightness. Comparing the treatments from both brightness conditions, 4 g of PBZ offered the smallest branch size independently of the luminosity condition.
Passiflora edulis f. flavicarpa; plant regulator; flowering
