Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam

Detalhes bibliográficos
Autor(a) principal: Mello,Juliana Iura de Oliveira
Data de Publicação: 2013
Outros Autores: Figueiredo-Ribeiro,Rita de Cássia Leone, Barbedo,Claudio José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Seed Science
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000400014
Resumo: Seeds of brazilwood usually have their germinability quickly reduced if stored under natural conditions. Low temperatures, mainly sub-zero, can extend this viability for at least two years. However, there is no information about the germination behavior of these seeds for longer periods, aiming at the germoplasm bank formation. The objective of this work was to evaluate the viability of brazilwood seeds during five-year storage period at 2, 8 and -18 °C. Before storage, seeds were subjected to artificial drying (50 °C) until the moisture content reached 10%. The germination and the normal seedling development of seeds maintained at low temperatures did not differ from other treatment during the first year of storage. However, after two years only seeds stored at -18 °C kept high germination percentage. Seeds stored for five years at -18 °C showed high values of germination and normal seedling development; however, after this period it was possible to identify some symptoms of seed deterioration. Storage at sub-zero temperatures is considered as an important initiative to maintain Caesalpinia echinata seed banks, contributing to the conservation of plant biodiversity.
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spelling Sub-zero temperature enables storage of seeds of Caesalpinia echinata LambrazilwoodconservationfreezingLeguminosaeSeeds of brazilwood usually have their germinability quickly reduced if stored under natural conditions. Low temperatures, mainly sub-zero, can extend this viability for at least two years. However, there is no information about the germination behavior of these seeds for longer periods, aiming at the germoplasm bank formation. The objective of this work was to evaluate the viability of brazilwood seeds during five-year storage period at 2, 8 and -18 °C. Before storage, seeds were subjected to artificial drying (50 °C) until the moisture content reached 10%. The germination and the normal seedling development of seeds maintained at low temperatures did not differ from other treatment during the first year of storage. However, after two years only seeds stored at -18 °C kept high germination percentage. Seeds stored for five years at -18 °C showed high values of germination and normal seedling development; however, after this period it was possible to identify some symptoms of seed deterioration. Storage at sub-zero temperatures is considered as an important initiative to maintain Caesalpinia echinata seed banks, contributing to the conservation of plant biodiversity.ABRATES - Associação Brasileira de Tecnologia de Sementes2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000400014Journal of Seed Science v.35 n.4 2013reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/S2317-15372013000400014info:eu-repo/semantics/openAccessMello,Juliana Iura de OliveiraFigueiredo-Ribeiro,Rita de Cássia LeoneBarbedo,Claudio Joséeng2014-01-20T00:00:00Zoai:scielo:S2317-15372013000400014Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2014-01-20T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
title Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
spellingShingle Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
Mello,Juliana Iura de Oliveira
brazilwood
conservation
freezing
Leguminosae
title_short Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
title_full Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
title_fullStr Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
title_full_unstemmed Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
title_sort Sub-zero temperature enables storage of seeds of Caesalpinia echinata Lam
author Mello,Juliana Iura de Oliveira
author_facet Mello,Juliana Iura de Oliveira
Figueiredo-Ribeiro,Rita de Cássia Leone
Barbedo,Claudio José
author_role author
author2 Figueiredo-Ribeiro,Rita de Cássia Leone
Barbedo,Claudio José
author2_role author
author
dc.contributor.author.fl_str_mv Mello,Juliana Iura de Oliveira
Figueiredo-Ribeiro,Rita de Cássia Leone
Barbedo,Claudio José
dc.subject.por.fl_str_mv brazilwood
conservation
freezing
Leguminosae
topic brazilwood
conservation
freezing
Leguminosae
description Seeds of brazilwood usually have their germinability quickly reduced if stored under natural conditions. Low temperatures, mainly sub-zero, can extend this viability for at least two years. However, there is no information about the germination behavior of these seeds for longer periods, aiming at the germoplasm bank formation. The objective of this work was to evaluate the viability of brazilwood seeds during five-year storage period at 2, 8 and -18 °C. Before storage, seeds were subjected to artificial drying (50 °C) until the moisture content reached 10%. The germination and the normal seedling development of seeds maintained at low temperatures did not differ from other treatment during the first year of storage. However, after two years only seeds stored at -18 °C kept high germination percentage. Seeds stored for five years at -18 °C showed high values of germination and normal seedling development; however, after this period it was possible to identify some symptoms of seed deterioration. Storage at sub-zero temperatures is considered as an important initiative to maintain Caesalpinia echinata seed banks, contributing to the conservation of plant biodiversity.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372013000400014
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2317-15372013000400014
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
dc.source.none.fl_str_mv Journal of Seed Science v.35 n.4 2013
reponame:Journal of Seed Science
instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)
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repository.name.fl_str_mv Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)
repository.mail.fl_str_mv ||abrates@abrates.org.br
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