Light and Ethephon Overcoming Seed Dormancy in Friar's Crown (, Cactaceae), a Brazilian Cactus.

Seed germination in and other cactus species is hampered by dormancy. However, most studies failed to achieve high seed-germination rates, suggesting a complex mechanism of dormancy in Cactaceae. Thus, the objective of this study was to evaluate whether factors such as light and phytoregulators overcome the dormancy in the seeds of the friar's crown cactus ().