Considering the necessity of search more efficacious technique in the peach plant propagation, this work was realized with the objective to determine six peach tree cultivars of the semi-hardwood and hardwood cuttings rooting potential (BR 3, Chula, Coral, Eldorado, Marli and Sinuelo), treated with IBA at rates of 1500 and 3000 mg.L-1 (immersed 5 seconds), compared with a control (without IBA). Were used cuttings with 20 cm length, collected in December 2000 (semi-hardwood with 4 leaves) and in April 2001 (hardwood without leaf). The cuttings were done in plastic tubets, containing carbonized rice husk, during 90 days in a greenhouse with intermittent mist. The indol-butiric acid increased, for all cultivars and types of cuttings, the survival and the rooting percentage. The 1500 mg.L-1 was considered the appropriate concentration, providing rooting between 65.3 % to 97.2 % (live + dead cuttings) and 27.9 % to 88.9 % (live rooting cuttings). In this concentration, considering only live cuttings, the most rotting percentage was obtained in Chula, Sinuelo and Marli cultivars with semi-hardwood cutting and Chula and Eldorado cultivars with hardwood cuttings. The hardwood cuttings are more indicated for plant propagation.
Prunus persica; peach; cutting; vegetative propagation
