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espanolRESUMEN Bowdichia virgilioides Kunth. perteneciente a la familia Fabaceae, es conocida como sucupira o pariarana. Ademas de sus propiedades medicinales posee madera pesada, fibrosa, con caracteristicas decorativas y de gran resistencia. En este contexto. el presente trabajo tuvo como objetivo evaluar el efecto de la cantidad de agua en el sustrato, temperaturas y diferentes regimenes de luz en la germinacion y vigor de las semillas de B. virgilioides. En el primer experimento, los volumenes de agua utilizados para humedecimiento del sustrato fueron equivalentes a 1,5, 2,0, 2,5, 3,0 y 3,5 veces el peso del sustrato seco. en las temperaturas constantes de 25, 30 y 35 °C, y alternada de 20-30 °C. En el segundo experimento. los regimenes de luz probados fueron el de luz blanca, verde, roja, rojo-distante y oscuro continuo, a las temperaturas constantes de 25, 30 y 35 °C y alternada de 20-30 °C. Se adopto en ambos experimentos el delineamiento enteramente al azar. en factorial 5 x 4, con cuatro repeticiones de 25 semillas cada una. Las variables analizadas fueron porcentaje, primer conteo e indice de velocidad de germinacion, longitud y masa seca de raices y parte aerea. Las semillas de B. virgilioides germinan en todos los regimenes de luz, pudiendo ser clasificadas como fotoblasticas neutras y la combinacion entre la temperatura de 30 °C y el volumen de agua de 2,5 veces el peso del sustrato seco es la condicion mas apropiada para realizar la prueba de germinacion de semillas de esta especie. EnglishABSTRACT Bowdichia virgilioides Kunth., a member of the Fabaceae family, is known as sucupira or paricarana. In addition to its medicinal properties, it has heavy, fibrous wood with ornamental features and high strength. Consequently, the present study aimed to evaluate the effect of the amount of water of the substrate, substrate temperature and the effect of different light regimes on germination and vigor of B. virgilioides seeds. In the first experiment, the volumes of water used for wetting the substrate were equivalent to 1.5, 2.0, 2.5, 3.0 and 3.5 times the weight of the dry substrate, at constant temperatures of 25, 30 and 35 °C, and alternating between 20-30 °C. In the second experiment, the tested light regimes were white, green, red, far-red and dark light at constant tempera tures of 25, 30 and 35 °C and alternated between 20-30 °C. A completely randomized design was used in both experiments, in a 5 x 4 factorial model, with four replicates of 25 seeds each. The variables analyzed included percentage, first count and index of germination speed, length and dry mass of roots and shoot length. The seeds of B. virgilioides germinated under all light regimes, and classified as neutral photoblastics. The combination of a 30 °C temperature and volume of water 2.5 times larger than the weight of the dry substrate were shown to be the most appropriate conditions to perform the seed germination test of this species.

Methodology for seed germination and vigor tests of Bowdichia virgilioides