Desiccation tolerance of Tapirira obtusa seeds collected from different environments

Detalhes bibliográficos
Autor(a) principal: Pereira,Wilson Vicente Souza
Data de Publicação: 2012
Outros Autores: Faria,José Márcio Rocha, Tonetti,Olivia Alvina Oliveira, Silva,Edvaldo Aparecido Amaral da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Sementes (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300005
Resumo: This study was aimed at evaluating the desiccation sensitivity in seeds of the tree Tapirira obtusa (Benth.) J. D. Mitchell collected from three different environments and subjected to two distinct drying speeds. Seeds were collected from a rocky area, in the "Cerrado", and in a riparian forest area, in the region of municipality of Lavras, State of Minas Gerais. The seeds were subjected to drying with magnesium chloride (slow drying) or silica gel (fast drying), into closed environment, until moisture contents of 40%, 30%, 20% and 10%, considering as control, the percentage of germination at the initial moisture content in each environment, which varied from 47% to 50%. Percentages of germination and normal seedlings as well as germination speed index were assessed. For the three environments studied, there was no effect of slow drying on seed germination. Seeds from area of Cerrado, however, have shown a slight reduction on germination when subjected to fast drying. Oppositely, seeds from rocky area had germination increased when subjected to fast drying. Seeds from riparian forest area had no reduction on germination percentage, independent of drying speed. Results suggest that seeds of T. obtusa are not sensitive to desiccation.
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spelling Desiccation tolerance of Tapirira obtusa seeds collected from different environmentsdryinggerminationsensitivitydehydrationThis study was aimed at evaluating the desiccation sensitivity in seeds of the tree Tapirira obtusa (Benth.) J. D. Mitchell collected from three different environments and subjected to two distinct drying speeds. Seeds were collected from a rocky area, in the "Cerrado", and in a riparian forest area, in the region of municipality of Lavras, State of Minas Gerais. The seeds were subjected to drying with magnesium chloride (slow drying) or silica gel (fast drying), into closed environment, until moisture contents of 40%, 30%, 20% and 10%, considering as control, the percentage of germination at the initial moisture content in each environment, which varied from 47% to 50%. Percentages of germination and normal seedlings as well as germination speed index were assessed. For the three environments studied, there was no effect of slow drying on seed germination. Seeds from area of Cerrado, however, have shown a slight reduction on germination when subjected to fast drying. Oppositely, seeds from rocky area had germination increased when subjected to fast drying. Seeds from riparian forest area had no reduction on germination percentage, independent of drying speed. Results suggest that seeds of T. obtusa are not sensitive to desiccation.Associação Brasileira de Tecnologia de Sementes2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300005Revista Brasileira de Sementes v.34 n.3 2012reponame:Revista Brasileira de Sementes (Online)instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABTS10.1590/S0101-31222012000300005info:eu-repo/semantics/openAccessPereira,Wilson Vicente SouzaFaria,José Márcio RochaTonetti,Olivia Alvina OliveiraSilva,Edvaldo Aparecido Amaral daeng2012-10-01T00:00:00Zoai:scielo:S0101-31222012000300005Revistahttp://www.abrates.org.br/portal/revista/ONGhttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br1806-99750101-3122opendoar:2012-10-01T00:00Revista Brasileira de Sementes (Online) - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Desiccation tolerance of Tapirira obtusa seeds collected from different environments
title Desiccation tolerance of Tapirira obtusa seeds collected from different environments
spellingShingle Desiccation tolerance of Tapirira obtusa seeds collected from different environments
Pereira,Wilson Vicente Souza
drying
germination
sensitivity
dehydration
title_short Desiccation tolerance of Tapirira obtusa seeds collected from different environments
title_full Desiccation tolerance of Tapirira obtusa seeds collected from different environments
title_fullStr Desiccation tolerance of Tapirira obtusa seeds collected from different environments
title_full_unstemmed Desiccation tolerance of Tapirira obtusa seeds collected from different environments
title_sort Desiccation tolerance of Tapirira obtusa seeds collected from different environments
author Pereira,Wilson Vicente Souza
author_facet Pereira,Wilson Vicente Souza
Faria,José Márcio Rocha
Tonetti,Olivia Alvina Oliveira
Silva,Edvaldo Aparecido Amaral da
author_role author
author2 Faria,José Márcio Rocha
Tonetti,Olivia Alvina Oliveira
Silva,Edvaldo Aparecido Amaral da
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira,Wilson Vicente Souza
Faria,José Márcio Rocha
Tonetti,Olivia Alvina Oliveira
Silva,Edvaldo Aparecido Amaral da
dc.subject.por.fl_str_mv drying
germination
sensitivity
dehydration
topic drying
germination
sensitivity
dehydration
description This study was aimed at evaluating the desiccation sensitivity in seeds of the tree Tapirira obtusa (Benth.) J. D. Mitchell collected from three different environments and subjected to two distinct drying speeds. Seeds were collected from a rocky area, in the "Cerrado", and in a riparian forest area, in the region of municipality of Lavras, State of Minas Gerais. The seeds were subjected to drying with magnesium chloride (slow drying) or silica gel (fast drying), into closed environment, until moisture contents of 40%, 30%, 20% and 10%, considering as control, the percentage of germination at the initial moisture content in each environment, which varied from 47% to 50%. Percentages of germination and normal seedlings as well as germination speed index were assessed. For the three environments studied, there was no effect of slow drying on seed germination. Seeds from area of Cerrado, however, have shown a slight reduction on germination when subjected to fast drying. Oppositely, seeds from rocky area had germination increased when subjected to fast drying. Seeds from riparian forest area had no reduction on germination percentage, independent of drying speed. Results suggest that seeds of T. obtusa are not sensitive to desiccation.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
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=S0101-31222012000300005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0101-31222012000300005
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 Associação Brasileira de Tecnologia de Sementes
publisher.none.fl_str_mv Associação Brasileira de Tecnologia de Sementes
dc.source.none.fl_str_mv Revista Brasileira de Sementes v.34 n.3 2012
reponame:Revista Brasileira de Sementes (Online)
instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)
instacron:ABTS
instname_str Associação Brasileira de Tecnologia de Sementes (ABRATES)
instacron_str ABTS
institution ABTS
reponame_str Revista Brasileira de Sementes (Online)
collection Revista Brasileira de Sementes (Online)
repository.name.fl_str_mv Revista Brasileira de Sementes (Online) - Associação Brasileira de Tecnologia de Sementes (ABRATES)
repository.mail.fl_str_mv ||abrates@abrates.org.br
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