Myrcia glabra (O.Berg) D. Legrand and Myrcia palustris DC. – Myrtaceae seed germination in cold chamber storage

• Autor(a) principal: Leonhardt, Cristina
• Data de Publicação: 2010
• Outros Autores: Calil, Anaíse Costa, Fior, Claudimar Sidnei
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Iheringia. Série Botânica
• Texto Completo: https://isb.emnuvens.com.br/iheringia/article/view/78
• topic: seed viability; seed storage.; viabilidade de sementes; armazenamento de sementes.

Myrcia glabra (O.Berg) D. Legrand and Myrcia palustris DC. are ornamental tree species, both indicated as urban trees and used in environmental restoration. The objective of this study was to evaluate seed germination at harvest time and during storage in a cold storage for six months, by seed moisture determinations, germination and speed of germination, and seedling emergence. At harvest time M. glabra and M. palustris seeds presented germination of 88% and 97% and seedling emergence of 80% and 87%, respectively. Under storage, the seeds presented a non-signifi cant difference in germination until 90 days and in emergence until 110 days and 120 days, respectively. After fi ve and six months of storage M. glabra and M. palustris seeds presented 50% and 58% of initial germination rate. The cold chamber conditions preserved the seeds’ initial quality in both species by, approximately, four months of storage and were appropriate for extending the seed longevity for fi ve and six months to M. glabra and M. palustris, respectively.