Identificação da viabilidade de sementes de orquídeas pelo teste de tetrazólio Orchid seeds viability identification by tetrazolium test
2014
The knowledge of germinal potential optimizes the practice of in vitro germination of Orchidaceae. This work evaluated of the type and concentrations of tetrazolium solutions on reaction time and on the identification of viable orchid seeds. Were used seeds of the species Brassavola tuberculata Hook, Cattleya labiata Lindley var Amoema, Cattleya intermedia and Dendrobium antenatum and of two primary hybrids of Cattleya labiata autumnalis x Cattleya labiata Lindley var. Alba. The seeds (0.01g) of each species or hybrid were soaked in 3 mL of aqueous and neutral solutions of 2, 3, 5 triphenyltetrazolium chloride at 0.0625%, 0.125%, 0.25%, 0.5% and 1.0% concentrations and stored
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