In vitro organogenesis of citrus was studied for the genotypes Citrus sinensis cv. ‘Natal’, C. limonia, C. volkameriana, and C. aurantium, with the use of epicotyl segments-derived explants, cultured in MT salts and vitamins medium supplemented with different concentrations of 6-benzylaminopurine (BAP – 0.0; 0.5; 1.0; 1.5, or 2.0 mg L-1). For the recalcitrant genotypes C. limonia and C. auranti...