Data/hora: 10/06/2024 02:44:02

Provedor de dados: | PFB - Pesquisa Florestal Brasileira
País: | Brazil

Título:

Breaking of Dormancy of Erythrina crista-galli Seeds

Quebra de Dormência de Sementes de Erythrina crista-galli

Autores: | Silva, Ariadne Josiane Castoldi; Carpanezzi, Antonio Aparecido; Lavoranti, Osmir José.
Data: | 2011-03-08
Ano: | 2011
Palavras-chave: | Erythrina crista-galli L.; Fabaceae; A medium-sized N-fixing tree; Is native to flooding soils of several Brazilian biomes. Its cultivation has interest for ornamental and ecological restoration purposes. Information on seed coat dormancy is conflicting a Corticeira-do-banhado; Escarificação; Germinação; Armazenamento.
Resumo: | Erythrina crista-galli L., Fabaceae, a medium-sized N-fixing tree, is native to flooding soils of several Brazilian biomes. Its cultivation has interest for ornamental and ecological restoration purposes. Information on seed coat dormancy is conflicting and inexact, therefore the present work aimed to verify it and to define methods for its overcoming. The study was composed by two experiments, using seed lots collected in different dates. Seeds were subjected to inducing germination treatments by chemical scarification (ACS commercial sulfuric acid, d=1,84 g/cm³) and thermic scarification (hot water). Results demonstrated high germination under acid scarification (up to 95%) and inferior when submitted to thermic scarification (reaching up to 43%); witness treatments showed germination between 2% and 13%. The results confirmed the presence of seed coat dormancy. It is recommendable, to break the dormancy of lots which are similar to the investigated ones (three to 27 months after seed collection), the immersion in sulfuric acid during 30 minutes. Seeds maintained its total germinative capacity after storage for 27 months in paper bag in cold chamber (5 °C and 98 % air humidity).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/206
Editor: | Embrapa Florestas
Relação: | http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/206/156
Formato: | application/pdf

Fonte:

Brazilian Journal of Forestry Research; n. 53 (2006): jul./dez.; 65

Pesquisa Florestal Brasileira; n. 53 (2006): jul./dez.; 65

1983-2605

1809-3647

Fonte:

Direitos autorais 2015 Pesquisa Florestal Brasileira

http://creativecommons.org/licenses/by-nc-nd/4.0