Influência do peso e da posição da semente no fruto sobre germinação de Senegalia bahiensis (Benth.) Seigler & Ebinger

Abstract

The Senegalia bahiensis is a native tree species of the Northeast, being well adapted to the savanna biome, which is popularly known as white jurema, hawthorn, belonging Fabaceae - Mimosoideae. The aim of this work was to study the influence of the weight and position of the fruit in the seed germination of S.bahiensis. The seeds were from mothers in the area with remaining Caatinga in the municipality of Castro Alves, Bahia. We used a randomized block design (RBD) with a 3x4 factorial design, with three weight classes (<0,020g, 0,020ga 0,040ge ≥ 0.040g) and four positions in the fruit (distal, 5th place, 6th place and proximal), totaling 12 treatments with three replications of 25 seeds. The germination test was conducted in germination type Biochemical Oxygen Demand (BOD) at a temperature of 30 ° C and continuous light. Three counts were performed in the second, sixth and eighth day. The results indicate that the quality of the seeds of S. baiensis is influenced by the weight and position of the seed in the fruit, the seeds of higher mass resulting in better performance germination, the seeds from the distal germination resulted in worse performance.