TECHNOLOGY OF Qualea grandiflora MART. (VOCHYSIACEAE) SEEDS
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
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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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 |
_version_ |
1799874941934370816 |