METODOLOGIA PARA TESTES DE GERMINAÇÃO E VIGOR DE SEMENTES DE Bowdichia virgilioides Kunth

Abstract

Bowdichia virgilioides Kunth, Belongs to the Fabaceae family is popularly known as “sucupira, sucupira preta, sucupira-roxa”, among others, in addition to its medicinal properties has heavy wood, fibrous, with decorative features and high strength. Thus the present study aimed to evaluate the effect of the amount of water on the substrate, temperature and different light schemes on germination and vigor of B. virgilioides. In the first experiment, the volumes of water used for moistening the paper towel substrate were equivalent to 1.5, 2.0, 2.5, 3.0 to 3.5 times the weight of the dry substrate at constant temperatures of 25, 30 and 35 °C and alternated 20-30 °C. In the second experiment, light systems tested were the white light, green, red, red-distant and continuous darkness, at constant temperatures of 25, 30 and 35 °C and alternating 20-30 ° C. It was adopted in both experiments the completely randomized in a factorial 5 x 4, with four replications of 25 seeds each. The variables analyzed were: percentage, first count and germination speed index, length and dry weight of root and shoot. Seeds of B. virgilioides germinate at all regimes of light, may be classified as neutral photoblastics and the combination between 30 °C and the water volume 2.5 times the weight of the dry substrate is most suitable condition for conducting the germination test of seeds species.