Tratamentos pré-germinativos em sementes de Mimosa tenuiflora (Willd) Poir. oriundas de população natural no Curimataú Paraibano

Abstract

Mimosa tenuiflora (Willd.) Poir. is a common species in dry regions with ecological, forage and medicinal importance, whose propagation by dormant seeds requires processes to overcome this dormancy. This research evaluated the efficiency of different pre-germination treatments in overcoming seed dormancy of this species. Seeds were subjected to 14 pre-germination treatments, including mechanical scarification, hot water immersion at 80, 90 and 100 °C, and sulfuric acid immersion for different periods. Chemical scarification with sulfuric acid (10, 15 and 20 minutes) and mechanical scarification proved to be the most effective methods for breaking tegumental dormancy, achieving germination rates of 85-97%.