Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000100008 |
Resumo: | The aims of this study were to evaluate the effects of osmotic potential on the water uptake curvein Cassia excelsa seeds and use the results to analyze the effects of dehydration and storage on primed seed germination. Seeds were imbibed in distillad water and polyethylene glicol (PEG 6000) osmotic solutions at -0.2, -0.4, and -0.6 MPa, at 20ºC. The radicle emergence and seed moisture content were evaluated at 6-hour intervals during 240 hours. Afterwards, seeds were primed in distillad water and PEG 6000 solutions at -0.2, -0.4, and -0.6 MPa for 48, 72, 96, and 168 hours at 20ºC, followed by air drying and storage for 15 days at 5ºC. The lower the osmotic potential, the higher the time required for priming. The osmoconditioning yields benefits with PEG solutions at 0.0 and -0.2 MPa; seed improvements were maintained during storage for 15 days at 5ºC, but were reverted by seed drying. |
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Brazilian Journal of Biology |
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Water uptake, priming, drying and storage effects inCassia excelsa Schrad seedsseedgerminationosmoconditioning imbibitiondryingThe aims of this study were to evaluate the effects of osmotic potential on the water uptake curvein Cassia excelsa seeds and use the results to analyze the effects of dehydration and storage on primed seed germination. Seeds were imbibed in distillad water and polyethylene glicol (PEG 6000) osmotic solutions at -0.2, -0.4, and -0.6 MPa, at 20ºC. The radicle emergence and seed moisture content were evaluated at 6-hour intervals during 240 hours. Afterwards, seeds were primed in distillad water and PEG 6000 solutions at -0.2, -0.4, and -0.6 MPa for 48, 72, 96, and 168 hours at 20ºC, followed by air drying and storage for 15 days at 5ºC. The lower the osmotic potential, the higher the time required for priming. The osmoconditioning yields benefits with PEG solutions at 0.0 and -0.2 MPa; seed improvements were maintained during storage for 15 days at 5ºC, but were reverted by seed drying.Instituto Internacional de Ecologia2003-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000100008Brazilian Journal of Biology v.63 n.1 2003reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842003000100008info:eu-repo/semantics/openAccessJeller,H.Perez,S. C. J. G. A.Raizer,J.eng2003-08-14T00:00:00Zoai:scielo:S1519-69842003000100008Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2003-08-14T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
title |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
spellingShingle |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds Jeller,H. seed germination osmoconditioning imbibition drying |
title_short |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
title_full |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
title_fullStr |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
title_full_unstemmed |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
title_sort |
Water uptake, priming, drying and storage effects inCassia excelsa Schrad seeds |
author |
Jeller,H. |
author_facet |
Jeller,H. Perez,S. C. J. G. A. Raizer,J. |
author_role |
author |
author2 |
Perez,S. C. J. G. A. Raizer,J. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Jeller,H. Perez,S. C. J. G. A. Raizer,J. |
dc.subject.por.fl_str_mv |
seed germination osmoconditioning imbibition drying |
topic |
seed germination osmoconditioning imbibition drying |
description |
The aims of this study were to evaluate the effects of osmotic potential on the water uptake curvein Cassia excelsa seeds and use the results to analyze the effects of dehydration and storage on primed seed germination. Seeds were imbibed in distillad water and polyethylene glicol (PEG 6000) osmotic solutions at -0.2, -0.4, and -0.6 MPa, at 20ºC. The radicle emergence and seed moisture content were evaluated at 6-hour intervals during 240 hours. Afterwards, seeds were primed in distillad water and PEG 6000 solutions at -0.2, -0.4, and -0.6 MPa for 48, 72, 96, and 168 hours at 20ºC, followed by air drying and storage for 15 days at 5ºC. The lower the osmotic potential, the higher the time required for priming. The osmoconditioning yields benefits with PEG solutions at 0.0 and -0.2 MPa; seed improvements were maintained during storage for 15 days at 5ºC, but were reverted by seed drying. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000100008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842003000100008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842003000100008 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.63 n.1 2003 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129874749816832 |