Garfagem e diâmetro de porta-enxerto na obtenção de mudas de umbuzeiro do acesso Laranja

The objective of this study was to verify the efficiency of different methods of grafting in umbuzeiro, as well as, to observe the behavior of different diameter of stock. The treatments were arranged in a randomized design in factorial 2 x 2 factors, in which the factors were: diameters (0,5-0,7 cm and 0,75-1,0 cm) and grafting (cleft graft and splice graft), using three repetitions, with eight plants per parcel. The percentage of grafting success and growth of shoots were evaluated. The splice grafting showed higher fixation than the cleft grafting. The largest diameter of the stock allowed a higher percentage of grafting and a greater length and diameter of the graft shoots of umbuzeiro.