This work was carried out with the objective of estimating root system quality in semi-hardwood and hardwood cuttings of six peach cultivars (BR 3, Chula, Coral, Eldorado, Marli and Sinuelo), treated with IBA at rates of 1500 and 3000 mg L-1 (immersion during 5 seconds), as compared with a control. Cuttings with 20 cm length sampled in December (semi-hardwood with 4 leaves) and April (hardwood with no leaf) were used. Rooting was done in 100 cm3 pots filled with carbonized rice husk, during 90 days in a greenhouse with intermittent mist. The indol-butiric acid increased root system quality of all cultivars and cuttings types. The more apropriate concentration was 1500 mg.L-1. Root system from semi-hardwood cuttings was better in quality (number, lenght, root volume and dry matter), but the two cuttings types are indicated for plant propagation.
Prunus persica; cutting; indolbutyric acid; vegetative propagation
