Influência do ambiente de coleta das sementes de Poincianella pyramidalis (Tul.) L. P. Queiroz sobre o tempo de armazenamento

Abstract

This work was developed in the Seed Laboratory of the Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Bahia, with the objective of evaluating the effect of edge on seed storage catingueira (Poincianella pyramidalis), a species endemic to the caatinga has great economic potential. The experimental design was completely randomized (CRD), 3 x 3, Three areas (inside the forest edge and grassland) and three storage periods (0, 3 and 6 months). There were three replicates of 25 seeds each. In each storage period was determined seed moisture within each batch, according to the rule of seed analysis. Counts were performed on the third, seventh and tenth day, being considered germinated seeds, seeds with radicle protrusion. It was determined the percentage of normal seedling and germination speed index. Data on the percentage of normal plants, rate of germination and moisture content were subjected to analysis of variance (α = 0.05), tests of means for the qualitative factor and regression analysis for the quantitative factor. The location of the plant in the field interferes with the germination potential in different periods of storage under uncontrolled conditions. Seeds collected within the interior of the fragment scrub and in a pasture, reduce the germination potential during the six months of storage, while the seeds of plants edge remains during the study period.