Effect of indolebutyric acid on rooting ability of semihardwood stem cuttings of peach

Abstract

This work had as objective to evaluate the effect of indolebutyric acid (IBA) on the rooting of semihardwood cuttings of nine cultivars (Arlequim, Aurora, Biuti, Diamante, Momo, Ouromel, Pérola de Mairinque, Premier and Tropical) and of two rootstocks (Okinawa and R-15-2) of peach. The experiment was set up at the Universidade Federal de Lavras, Lavras, MG, Brazil, in Nov./Dec. 1997. The IBA concentrations were 0; 1,000; 2,000 and 3,000 mg L^-1, and the cutting base was dipped in the solution for five seconds. IBA influence was detected on rooting, on callus formation and root number. The highest percentage of rooting occurred in cultivars Pérola de Mairinque (56.62%) and Tropical (55.04%), both at the concentration of 3,000 mg L^-1 of IBA.