Germination requirements of a widely distributed species, Eugenia punicifolia (Kunth) DC

Abstract Information on seed requirements is important for understanding the life-history strategies of a species, as it can help explain species abundance and distribution. Temperature is one of the abiotic variables that affect germination, but responses to that variable can be different in populations of species along climatic gradients. Seeds of Eugenia punicifolia (Kunth) DC were obtained from three plant physiognomies and two experiments were conducted. Variation in germination rates in response to temperature among populations from environments with contrasting climatic conditions may reflect adaptation to the climate of their native habitats and help explain the species’ broad colonization across different environments The ability of seeds to germinate across a range of temperatures may be ecologically advantageous by increasing the temporal and spatial windows for seedling establishment, particularly in environments characterized by seasonal and unpredictable conditions. Moreover, differences in dormancy release and germination rates may influence recruitment success and contribute to the persistence and regeneration of populations.Thus, temperature-dependent germination responses provide important insights into the ecological strategies of E. punicifolia and may help explain its capacity to colonize and persist across different vegetation types and environmental conditions.