|
|
Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
22/02/2013 |
Data da última atualização: |
13/06/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
REIS, R. C. R.; DANTAS, B. F.; PELACANI, C. R. |
Afiliação: |
RENATA CONDURU RIBEIRO REIS; BARBARA FRANCA DANTAS, CPATSA; CLAUDINÉIA REGINA PELACANI. |
Título: |
Mobilization of reserves and germination of seeds of Erythrina velutina Willd. (Leguminosae - Papilionoideae) under different osmotic potentials. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Revista Brasileira de Sementes, v. 34, n. 4, p. 580-588, 2012. |
Idioma: |
Inglês |
Conteúdo: |
Some environmental factors, including water availability, may influence seed germination. This study investigated the germination of E. velutina seeds submitted to different osmotic potentials and mobilization of reserves during water-stress. Scarified seeds were arranged in paper rolls and soaked in solutions of Polyethylene Glycol (PEG) prepared in osmotic potentials 0.0, -0.2, -0.4, -0.6, and -0.8 MPa and kept into a seed germinator, at 25 °C, and 12/12 h photoperiod (L/D), during 10 days. The percentage, mean time, mean speed, germination speed index; as well as the germination uniformity coefficient were assessed. During germination process the total soluble sugars, reducing sugars, soluble protein, and total amino acids were quantified in the cotyledon, hypocotyl and radicle of soaked seeds and cotyledons of quiescent seeds (control). There was influence of osmotic potential on E. velutina seed germination. The germination percentage remained at high levels until -0.6 MPa and above this osmotic potential there has been no germination. The mobilization of stored reserves of carbon and nitrogen in E. velutina seeds was also influenced by water-stress. There was sensitiveness between -0.2 and -0.6 MPa; however, the degradation and the mobilization of reserves was slower when the osmotic potential decreased. |
Palavras-Chave: |
Carbono de reserva; Proteínas solúveis; Stresse hídrico. |
Thesagro: |
Caatinga; Germinação; Mulungu; Recurso natural; Semente. |
Thesaurus Nal: |
Erythrina velutina; Natural resources; Water stress. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/78727/1/Barbara.pdf
|
Marc: |
LEADER 02186naa a2200277 a 4500 001 1950565 005 2023-06-13 008 2012 bl uuuu u00u1 u #d 100 1 $aREIS, R. C. R. 245 $aMobilization of reserves and germination of seeds of Erythrina velutina Willd. (Leguminosae - Papilionoideae) under different osmotic potentials.$h[electronic resource] 260 $c2012 520 $aSome environmental factors, including water availability, may influence seed germination. This study investigated the germination of E. velutina seeds submitted to different osmotic potentials and mobilization of reserves during water-stress. Scarified seeds were arranged in paper rolls and soaked in solutions of Polyethylene Glycol (PEG) prepared in osmotic potentials 0.0, -0.2, -0.4, -0.6, and -0.8 MPa and kept into a seed germinator, at 25 °C, and 12/12 h photoperiod (L/D), during 10 days. The percentage, mean time, mean speed, germination speed index; as well as the germination uniformity coefficient were assessed. During germination process the total soluble sugars, reducing sugars, soluble protein, and total amino acids were quantified in the cotyledon, hypocotyl and radicle of soaked seeds and cotyledons of quiescent seeds (control). There was influence of osmotic potential on E. velutina seed germination. The germination percentage remained at high levels until -0.6 MPa and above this osmotic potential there has been no germination. The mobilization of stored reserves of carbon and nitrogen in E. velutina seeds was also influenced by water-stress. There was sensitiveness between -0.2 and -0.6 MPa; however, the degradation and the mobilization of reserves was slower when the osmotic potential decreased. 650 $aErythrina velutina 650 $aNatural resources 650 $aWater stress 650 $aCaatinga 650 $aGerminação 650 $aMulungu 650 $aRecurso natural 650 $aSemente 653 $aCarbono de reserva 653 $aProteínas solúveis 653 $aStresse hídrico 700 1 $aDANTAS, B. F. 700 1 $aPELACANI, C. R. 773 $tRevista Brasileira de Sementes$gv. 34, n. 4, p. 580-588, 2012.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Semiárido (CPATSA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
05/07/2006 |
Data da última atualização: |
13/01/2020 |
Autoria: |
DAL VESCO, L. L.; TORRES, A. C.; NODARI, R. O.; GUERRA, M. P. |
Afiliação: |
DAL VESCO, LIRIO LIZ; ANTONIO CARLOS TORRES, CNPH; RUBENS ONOFRE NODARI; MIGUEL PEDRO GUERRA. |
Título: |
Regulation of somatic embryogenesis in Feijoa sellowiana Berg. and technology of synthetic seeds. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
Plant Cell Culture Micropropagation, Lavras, v. 1, n. 1, p. 37-46, 2005. |
Idioma: |
Inglês |
Palavras-Chave: |
Embriogênese somática; Feijoa sellowiana; Formulação salina; Semente sintética. |
Thesagro: |
Histologia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00664naa a2200205 a 4500 001 1779183 005 2020-01-13 008 2005 bl uuuu u00u1 u #d 100 1 $aDAL VESCO, L. L. 245 $aRegulation of somatic embryogenesis in Feijoa sellowiana Berg. and technology of synthetic seeds.$h[electronic resource] 260 $c2005 650 $aHistologia 653 $aEmbriogênese somática 653 $aFeijoa sellowiana 653 $aFormulação salina 653 $aSemente sintética 700 1 $aTORRES, A. C. 700 1 $aNODARI, R. O. 700 1 $aGUERRA, M. P. 773 $tPlant Cell Culture Micropropagation, Lavras$gv. 1, n. 1, p. 37-46, 2005.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Hortaliças (CNPH) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|