Mini-estaquia e mini-enxertia em jabuticabeira, pitangueira e araçazeiro amarelo

Abstract

The Myrtaceae family has been widely studied, with natural occurrence in almost all the Brazilian biomes, and its fruits can be consumed in natura or in processed form. In addition to palatable fruits, the family has nutraceutical properties, which has aroused the curiosity of cosmetics and pharmaceutical companies. This situation increases the look for seedlings for use in commercial orchards that it will can formed. The present work aimed to test the propagation of jabuticab a tree , surinan cherry tree and yellow araça tree by mini cutting and mini grafting. The work consisted of three experiments, which were carried out at the Universidade Tecnológica Federal do Paraná , Dois Vizinhos Câ mpus , Paraná State, Brazil . The jabuticaba tree material were collected in two seasons of the year and with surinan cherry tree and yellow araça tree in four. Mini cuttings of 6 cm were made with a pair of leaves reduced to half the original size The mini cuttings had their bases immersed in indole butyric acid (IBA) at concentrations of 0, 1 000 and 3000 mg L 1 and benzyl amino purine (BAP) at conc entrations of 0 , 250 and 500 mg L 1 T he mini cuttings were later allocated in tubes containing commercial substrate in the greenhouse with humidity and controlled temperature. For the second experim ent, mini cuttings of 6 cm were also made, it being after put in phenolic foam immersed in IBA in the concentrations of 0 , 250 and 500 mg L 1 . The material was greenhouse with controlled humidity and temperature T he IBA solution s was changed every twenty days, in order to keep the phenolic foam on the solution sheet T he grafting experiment, seedlings and rootstocks of adult plants were used as grafts. The cleft graft and splice graft techniques w ere used. The use of indole butyric acid applied on immersion in permanent solution slab and phenolic foam as substrate was not adequate to stimulate the rooting of the mini cuttings for jabutica ba tree Plinia sp.), y ellow araça tree P. cattleyanum Sabine) and surinan cherry tree E. unifl ora L.). The use of the indole butyric acid x benzyl amino purine solution s was shown to be more promising for jaboticaba mini cuttings ( Plinia sp.). The re were correlations between the percentage of rooting with the amount of tryptophan and total sugar , b ut when they were significant were without the application of IBA and BAP. For the mini grafting experiment, the technique was not feasible for all the fruit trees studied in this work