TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS

Detalhes bibliográficos
Autor(a) principal: Dousseau, Sara
Data de Publicação: 2016
Outros Autores: Alvarenga, Amauri Alves de, Arantes, Lúcio de Oliveira, Chaves, Izabel de Souza, Avelino, Eduardo Valente
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerne (Online)
Texto Completo: https://cerne.ufla.br/site/index.php/CERNE/article/view/880
Resumo: Qualea grandiflora Mart. (Vochysiaceae), commonly known as “pau-terra”, is an arborous species native to the Brazilian savannah which possess commercial interests, as it can be used either as an ornamental or as a medicinal plant. “Pau-terra” can also be used in the heterogeneous reforestation of areas which are destined for restoration of permanent preservation degraded areas. Propagation studies with this species are scarce, being necessary then further clarification regarding the factors that influences the germination process. In this context, the objective of this work was to evaluate the influence of different temperatures, substrates and light conditions on seed germination. We selected light brown seeds which were subjected to different interactions between temperatures (15-25, 20-30, 25 and 30°C), substrate (paper, sand and vermiculite) and light (light and dark). All seeds were later dryincubated at 32°C for 3, 6 and 12 hours. After treatments, seeds were kept in BOD at 58% RH and the following parameters were calculated: germination (%G) and germination speed index (GSI); the formation of normal and abnormal seedlings and the number dead seeds. Interaction was observed for all variables. In the optimum temperature range, the seeds behaved as photoblastic neutral or indifferent. Under alternating temperatures, darkness enhanced the germination, especially when combined with the lower temperatures. We noted that the sowing in sand, at 25°C, allowed the maintenance of suitable combinations of germination and seedling development. With respect to desiccation tolerance, “pau-terra” seeds presented an orthodox behavior, with a linear increase of the vigor as function of drying.
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spelling TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDSLighttemperaturesubstratedryingorthodox.Qualea grandiflora Mart. (Vochysiaceae), commonly known as “pau-terra”, is an arborous species native to the Brazilian savannah which possess commercial interests, as it can be used either as an ornamental or as a medicinal plant. “Pau-terra” can also be used in the heterogeneous reforestation of areas which are destined for restoration of permanent preservation degraded areas. Propagation studies with this species are scarce, being necessary then further clarification regarding the factors that influences the germination process. In this context, the objective of this work was to evaluate the influence of different temperatures, substrates and light conditions on seed germination. We selected light brown seeds which were subjected to different interactions between temperatures (15-25, 20-30, 25 and 30°C), substrate (paper, sand and vermiculite) and light (light and dark). All seeds were later dryincubated at 32°C for 3, 6 and 12 hours. After treatments, seeds were kept in BOD at 58% RH and the following parameters were calculated: germination (%G) and germination speed index (GSI); the formation of normal and abnormal seedlings and the number dead seeds. Interaction was observed for all variables. In the optimum temperature range, the seeds behaved as photoblastic neutral or indifferent. Under alternating temperatures, darkness enhanced the germination, especially when combined with the lower temperatures. We noted that the sowing in sand, at 25°C, allowed the maintenance of suitable combinations of germination and seedling development. With respect to desiccation tolerance, “pau-terra” seeds presented an orthodox behavior, with a linear increase of the vigor as function of drying.CERNECERNE2016-04-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/880CERNE; Vol. 19 No. 1 (2013); 93-101CERNE; v. 19 n. 1 (2013); 93-1012317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/880/659Copyright (c) 2016 CERNEinfo:eu-repo/semantics/openAccessDousseau, SaraAlvarenga, Amauri Alves deArantes, Lúcio de OliveiraChaves, Izabel de SouzaAvelino, Eduardo Valente2016-04-19T15:46:46Zoai:cerne.ufla.br:article/880Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:54:09.613158Cerne (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
title TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
spellingShingle TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
Dousseau, Sara
Light
temperature
substrate
drying
orthodox.
title_short TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
title_full TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
title_fullStr TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
title_full_unstemmed TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
title_sort TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
author Dousseau, Sara
author_facet Dousseau, Sara
Alvarenga, Amauri Alves de
Arantes, Lúcio de Oliveira
Chaves, Izabel de Souza
Avelino, Eduardo Valente
author_role author
author2 Alvarenga, Amauri Alves de
Arantes, Lúcio de Oliveira
Chaves, Izabel de Souza
Avelino, Eduardo Valente
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Dousseau, Sara
Alvarenga, Amauri Alves de
Arantes, Lúcio de Oliveira
Chaves, Izabel de Souza
Avelino, Eduardo Valente
dc.subject.por.fl_str_mv Light
temperature
substrate
drying
orthodox.
topic Light
temperature
substrate
drying
orthodox.
description Qualea grandiflora Mart. (Vochysiaceae), commonly known as “pau-terra”, is an arborous species native to the Brazilian savannah which possess commercial interests, as it can be used either as an ornamental or as a medicinal plant. “Pau-terra” can also be used in the heterogeneous reforestation of areas which are destined for restoration of permanent preservation degraded areas. Propagation studies with this species are scarce, being necessary then further clarification regarding the factors that influences the germination process. In this context, the objective of this work was to evaluate the influence of different temperatures, substrates and light conditions on seed germination. We selected light brown seeds which were subjected to different interactions between temperatures (15-25, 20-30, 25 and 30°C), substrate (paper, sand and vermiculite) and light (light and dark). All seeds were later dryincubated at 32°C for 3, 6 and 12 hours. After treatments, seeds were kept in BOD at 58% RH and the following parameters were calculated: germination (%G) and germination speed index (GSI); the formation of normal and abnormal seedlings and the number dead seeds. Interaction was observed for all variables. In the optimum temperature range, the seeds behaved as photoblastic neutral or indifferent. Under alternating temperatures, darkness enhanced the germination, especially when combined with the lower temperatures. We noted that the sowing in sand, at 25°C, allowed the maintenance of suitable combinations of germination and seedling development. With respect to desiccation tolerance, “pau-terra” seeds presented an orthodox behavior, with a linear increase of the vigor as function of drying.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-05
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://cerne.ufla.br/site/index.php/CERNE/article/view/880
url https://cerne.ufla.br/site/index.php/CERNE/article/view/880
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://cerne.ufla.br/site/index.php/CERNE/article/view/880/659
dc.rights.driver.fl_str_mv Copyright (c) 2016 CERNE
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2016 CERNE
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv CERNE
CERNE
publisher.none.fl_str_mv CERNE
CERNE
dc.source.none.fl_str_mv CERNE; Vol. 19 No. 1 (2013); 93-101
CERNE; v. 19 n. 1 (2013); 93-101
2317-6342
0104-7760
reponame:Cerne (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Cerne (Online)
collection Cerne (Online)
repository.name.fl_str_mv Cerne (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv cerne@dcf.ufla.br||cerne@dcf.ufla.br
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