ABSTRACT. Three simplified, low-cost culture media, prepared with foliar fertilizers, were compared with the commonly used ½ MS-ban (Murashige Skoog medium ½ salt concentration, with banana fruit) for the in vitro multiplication of the orchid hybrid Cattleya amethystoglossa x nobilior. The simplified culture media tested were Hy-ban, which is made with 1.33 g L -1of Hyponex fertilizer (NPK 6.5-6-19); KP-ban, which is made with 0.92 g L of banana fruit, pH 5.6. Plantlets were evaluated after 80 days for the following parameters: number of shoots, shoot length, number of roots, longest root length and fresh weight. While all four media can be used for the studied hybrid, the best medium was Kcal-ban.
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