GERMINAÇÃO E VIGOR DE DIÁSPOROS DE Lophantera lactescens Ducke APÓS SUPERAÇÃO DA DORMÊNCIA

Abstract

Lophantera lactescens Ducke, popularly known as lanterneira, lofantera-the-amazon, rain-of-gold, among others is an arboreal species, widely distributed in South America and one of the unique in the Amazon region. The aim of this study was to evaluate the effect of different pre-germination treatments to overcome dormancy in diasporas L. lactescens. The experiment was conducted at Agricultural Science Center of Seed Analysis Laboratory of the Federal University of Paraíba, which consisted of the following treatments: stratification by 10, 20, 30 and 40 days (T1, T2, T3 and T4, respectively) and soaking in distilled water for 0 (control), 6, 12 and 18 hours (T5, T6, T7 and T8, respectively) in experimental design completely randomized. In evaluating the effect of treatment the following variables were analyzed: germination test, germination speed index, length and dry mass of seedlings. Stratification by 20 and 30 days are effective for overcoming the diasporas of dormancy Lophantera lactescens Ducke and treatment of soaking in water for 12 to 18 hours is not indicated for overcoming the diasporas of dormancy L. lactescens therefore showed the lowest results in all variables.