Auxins and Cytokinins elicit a differentiated response in the formation of shoots and roots in Cattleya maxima Lindl and Phalaenopsis amabilis (L) Blume

Orchids have a long period of production and need to be under the right conditions. Therefore, in vitro propagation is an alternative reduce time. This study aimed determine optimal conditions two species orchids, Cattleya maxima Lindl. Phalaenopsis amabilis (L.) Blume. For this goal, experiments were carried out: multiplication rooting, for both species. In experiment, treatments differentiated according complement MS (Murashige Skoog medium), banana flour, kinetin or 6-Benzylaminopurine (BAP). Meanwhile, rooting complements Indol-3-butiric acid (IBA), Naphthaleneacetic (NAA) 2,4-Dichlorophenoxyacetic (2,4-D). According results, flour (50 g.L-1) increased plantlet height C. (multiplication) P. (rooting). Kinetin (0.003 BAP (0.005 number shoots leaves maxima, experiment. NAA significantly maxima. The root formation was notably stimulated by Likewise, 2,4-D can cause phytotoxic effects inhibit formation. conclusion, more robust than since all studied variables former presented highest values. Furthermore, responds adequately application increase aerial part plant, however, they contrast, do not limit growth amabilis.