Seed germination of oenocarpus minor Mart. in different substrata and temperatures

Abstract

The present work had as objective to evaluate the influence of the temperature and the substratum in the germination, thus as to determine the ideal depth of sowing for emergency of Oenocarpus minor Mart. seedlings. The experimental design was completely randomized, arranged in a 3x4 factorial scheme (temperature x substrate), with three replications of 30 seeds each. The seeds were placed in plastic boxes containning substratum and incubated at constant temperature in a germination chambers at constant temperature and 12 h photoperiod. For the emergency, 4 replications of 24 seeds had been used, distributed in tray plastic, with plantmax and vermiculita, in 0, 2 and 4 cm of sowing depth and kept in greenhouse. Based in results the best substrates and temperature for germination of Oenocarpus bacaba Mart. was sand and vermiculite and temperature of 30°C, respectively. Depths superior than 2 cm are inadequate for sowing of Oenocarpus minor Mart.