Abstract
Forage palms of the species Nopalea cochenillifera Salm-Dyck are an important source of food for animals in the semi-arid region. The aim was to evaluate the best methods for breaking dormancy in seeds from accessions of Nopalea cochenillifera Salm-Dyck. The treatments were: immersion in sulphuric acid for 3 minutes (T1), mechanical scarification with 80º sandpaper (T2); immersion in water at 80ºC for 1 and 3 minutes (T3 and T4 respectively) and control (T5) - intact seeds. The results showed that accessions A2, A4 and A5 did not differ from each other or from the treatments evaluated. However, access A3 obtained the best emergence percentages when subjected to hot water treatments for 1 and 3 minutes. The emergence of Nopalea cochenillifera Salm-Dyck seeds was enhanced by the treatments of immersion in hot water for 1 and 3 minutes, as observed in this study. However, it is important to note that the percentage of emergence did not exceed 50% for any of the accessions evaluated.
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