Use este identificador para citar ou linkar para este item: repositorio.ufla.br/jspui/handle/1/14691
Título: PHYSIOLOGIC DORMANCY BREAKING METHODS OF Caryocar brasiliense Camb.
Autor: Dombroski, Jeferson Luiz Dallabona
Paiva, Renato
Alves, João Mauricio Cavalcante
Santos, Breno Regis
Nogueira, Rairys Cravo
Paiva, Patrícia Duarte de Oliveira
Barbosa, Sandro
Palavras-chave: Caryocaraceae, dormancy breaking, germination mean time
Publicador: CERNE
CERNE
Data: 14-Mai-2015
Outras Identificações : http://www.cerne.ufla.br/site/index.php/CERNE/article/view/148
Descrição: Caryocar brasiliense is a native species from Brazilian cerrado that has a considerable economic potential. The aim of this work was verifying the effect of substances with potential for seed germination stimulation. Seeds were extracted from the endocarps and set to germinate in paper rolls moistened with the following solutions: distilled water (Control); 2mmol L-1 KNO3 (Nitrate); 2mmol L-1 Etephon (ET); 1mmol L-1 GA3 (GA), 1mmol L-1 GA3 + 2mmol L-1 Etephon (GA + ET). The germination and the germination mean time were, respectively, 54.0% and 9.3 days in the GA treatment, 47.3% and 11.0 days in the GA + ET treatment, 32.0% and 12.2 days in the Control treatment, 30.7% and 13.1 days in the Etephon treatment, and 20.1% and 13.1 days in the Nitrate treatment. Low germination rates were observed in the GA + ET treatment up to the ninth day from sowing, when compared to the GA treatment, what indicates a possible seed germination inhibition due to ethylene presence.
Idioma: por
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