After more than a year of storage, the percentage of seed germination of seeds of the studied Tillandsia species had declined, but was never completely lost. In the case of T. caput-medusae, the seeds had high longevity, since even when storaged at room temperatures the germination began at 99.5% and after more than one year had only declined to 81.7%.
This means that seeds of this species could germinate in at least two consecutive rainy periods, as has been foun for Aechmea bracteata (Goode and Allen, 1979). In the absence of regular rain, this high longevity would allow T. caput-medusae to develop a persisten seed bank (sensu Thompson and Grime, 1979) as has been found with other species of epiphytes (Nadkarni and Haber, 2009).
After more than a year of storage, the percentage of seed germination of seeds of the studied Tillandsia species had declined, but was never completely lost. In the case of T. caput-medusae, the seeds had high longevity, since even when storaged at room temperatures the germination began at 99.5% and after more than one year had only declined to 81.7%. This means that seeds of this species could germinate in at least two consecutive rainy periods, as has been foun for Aechmea bracteata (Goode and Allen, 1979). In the absence of regular rain, this high longevity would allow T. caput-medusae to develop a persisten seed bank (sensu Thompson and Grime, 1979) as has been found with other species of epiphytes (Nadkarni and Haber, 2009).
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