Efeito de diferentes reguladores de crescimento na regenera？？o in vitro de pau-rosa (Aniba rosaeodora Ducke)

the objective of this work was to establish a protocol for in vitro regeneration of rosewood (aniba rosaeodora ducke), using apical and nodal segments inoculated in culture medium with various concentrations of growth regulators. explants disinfected with solutions of benomyl (4,0 g.l-1) for 24 hours and sodium hipoclorite in 20% + tween 20 for 20 minutes were submitted in an experiment of shoot, root and callus induction in ms medium, with 30 g.l-1 of sucrose and 9,0 g.l-1 of agar added with the growth regulators: bap (0,0 and 4,0 mg.l-1), ana, aia and 2,4-d (0,0; 3,0 and 6,0 mg.l-1), and their respective combinations. the design was complete randomized in arranged factorial 7 x 2, with 14 treatments and 15 replications, where about the explants were analysed the number of shoot, root and callus . after 90 days, the results showed that the presence of auxins is fundamental to induce buds, roots and callus . the medium was contained 4,0 mg.l-1 bap + 6,0 mg.l-1 aia showed the best average for shooting with 2,13 buds/explants. in the rooting, the medium was contained 3,0 mg.l-1 of ana was the more efficient, showed 2,53 roots/explant. however, all the treatments obtained formation of callus, but the medium with 4,0 mg.l-1 bap + 6,0 mg.l-1 2,4-d showed the best result,1.67 callus/explant.