It was studied the induction of embryogenics calli in cupuassu, in function of kind of explant and culture medium. Cotyledons segments and embryonic axes were tested and divided in three parts: region of plumule, radicule and hypocotile. The explants were cultivated in two different culture medium: 1) MS supplemented with 2,4-D (1 mg L-1) and Kinetin (0,25 mg L-1); 2) MS supplemented with NAA (5 mg L-1) and Kinetin (0,25 mg L-1). The hypocotile region demonstrated to be more responsive segment of the embryonic axe, forming callus with white and friable aspect. No somatic embryogenesis was evidenced in callus of cupuassu with auxines testeds in the medium.
Tissue culture; cupuassu; Theobroma grandiflorum; auxine
