EMERGÊNCIA DE PLÂNTULAS DE schinus terebinthifolius RADDI. SOB DIFERENTES NÍVEIS DE SOMBREAMENTO

Abstract

The luminosity directly influences plants development and growth, being very importance to know the effect of different levels of light on the forest species. Therefore, the present work had the objective of analyzing the effect of different shading levels on the emergence of Schinus terebinthifolius Raddi. seedlings, in a nursery area of ​​the rural campus of the State University of Southwest of Bahia, in order to verify the behavior of this species due to the availability of light. The experiment was conducted based on a completely randomized design (DIC), structured in four treatments with different levels of shade (80%, 50% and 30% in full sun) and twenty replicates per treatment, where were sown five seeds per polyethylene bag, which were arranged under "sombrite" fabrics. Estatistically, were evaluated the percentage of emergency (TXE-%), the mean time of emergency (TME) and the Index of Emergency Speed (IVE) by Tukey's test average at the 95% of probability level. Seeds under the 30% of shading level presented the highest emergence rate and emergence speed index, although with a longer average time of emergence.