Performance of distinct strategies on overcoming dormancy in Senna obtusifolia seeds

Senna obtusifolia presents structures favorable to the effects of dormancy phenomenon, presenting low germination rates for a certain period. This panorama can be solved by dormancy-breaking process, which is caused exposure seed adverse conditions that stimulate process. Accordingly, this study aimed evaluate efficiency different methods overcome in (L.) H. S. Irwin & Barneby seeds. A completely randomized design (CRD) was experimental adopted, with four treatments and eight replications 25 The consisted mechanical scarification, water imbibition, immersion hot water. In study, statistically significant difference seen between all parameters, where treatment under scarification most effective promoting (99 ± 1.51% germinated seeds). Furthermore, presented promising results average shoot length (ASL) (43.95 8.66 mm), root (ARL) (28.09 5.27 total fresh mass (MF) (1.97 0.10 g), dry (MS) (0.37 0.03 g). seeds favored efficient process overcoming