Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego

Detalhes bibliográficos
Autor(a) principal: Menezes, L. C. C. R. de [UNESP]
Data de Publicação: 2011
Outros Autores: Rossi, M. N.
Tipo de documento: Artigo
Idioma: eng
spa
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.revistaphyton.fund-romuloraggio.org.ar/vol80.html
http://hdl.handle.net/11449/73075
Resumo: After a fire event, germination of seeds with hard coats can be enhanced. In the present study, we investigated whether germination of Mimosa bimucronata (DC.) Kuntze (Fabaceae) seeds, which present hard coats, is increased after fire, even though these trees usually occur in damp areas, where fire is a transient event. Fire events were manipulated in trays filled with soil covered with different amounts of dry grasses, characterizing three treatments: a) 0g (control group); b) 300g, and c) 450g of dry grass. Burning treatments were applied to seeds positioned either on the soil surface or buried in the soil. Germination experiments were carried out at 0-h and 24-h after fire to obtain the germination percentage and the Germination Speed Index (GSI). For buried seeds, the control and the 300g treatments presented significantly higher germination percentages than the 450g treatment. On the other hand, the GSI was significantly higher in the 300g treatment. Significant differences were not found between 0-h and 24-h. Seeds on the soil surface did not survive after burning. Our study showed that temperatures around 100 °C significantly decrease the germinability of M. bimucronata seeds. However, when seeds were buried, the germination percentage did not differ between the control group and the 300g treatment. Results also suggest that temperatures around 60 °C may enhance the velocity of germination of M. bimucronata seeds.
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spelling Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuegoSeed germination after fire: A study with a plant inhabiting non-fire-prone areasFabaceaeGerminationHard seed coatHigh temperaturesAfter a fire event, germination of seeds with hard coats can be enhanced. In the present study, we investigated whether germination of Mimosa bimucronata (DC.) Kuntze (Fabaceae) seeds, which present hard coats, is increased after fire, even though these trees usually occur in damp areas, where fire is a transient event. Fire events were manipulated in trays filled with soil covered with different amounts of dry grasses, characterizing three treatments: a) 0g (control group); b) 300g, and c) 450g of dry grass. Burning treatments were applied to seeds positioned either on the soil surface or buried in the soil. Germination experiments were carried out at 0-h and 24-h after fire to obtain the germination percentage and the Germination Speed Index (GSI). For buried seeds, the control and the 300g treatments presented significantly higher germination percentages than the 450g treatment. On the other hand, the GSI was significantly higher in the 300g treatment. Significant differences were not found between 0-h and 24-h. Seeds on the soil surface did not survive after burning. Our study showed that temperatures around 100 °C significantly decrease the germinability of M. bimucronata seeds. However, when seeds were buried, the germination percentage did not differ between the control group and the 300g treatment. Results also suggest that temperatures around 60 °C may enhance the velocity of germination of M. bimucronata seeds.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (Unesp) Department of Botany, IB, Botucatu, 18618-000, São PauloFederal University of São Paulo (Unifesp) Department of Biological Sciences, Diadema, 09941-510, São PauloSão Paulo State University (Unesp) Department of Botany, IB, Botucatu, 18618-000, São PauloFAPESP: 05/57999-3FAPESP: 04/06737-6Universidade Estadual Paulista (Unesp)Universidade Federal de São Paulo (UNIFESP)Menezes, L. C. C. R. de [UNESP]Rossi, M. N.2014-05-27T11:26:20Z2014-05-27T11:26:20Z2011-12-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article153-160application/pdfhttp://www.revistaphyton.fund-romuloraggio.org.ar/vol80.htmlPhyton, v. 80, p. 153-160.0031-94571851-5657http://hdl.handle.net/11449/73075WOS:0002993012000232-s2.0-834551956832-s2.0-83455195683.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengspaPhyton0.2620,1730,173info:eu-repo/semantics/openAccess2023-12-15T06:17:25Zoai:repositorio.unesp.br:11449/73075Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:24:03.902417Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
Seed germination after fire: A study with a plant inhabiting non-fire-prone areas
title Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
spellingShingle Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
Menezes, L. C. C. R. de [UNESP]
Fabaceae
Germination
Hard seed coat
High temperatures
title_short Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
title_full Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
title_fullStr Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
title_full_unstemmed Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
title_sort Germinación de semillas después del fuego: Un estudio con una planta que habita áreas no propensas al fuego
author Menezes, L. C. C. R. de [UNESP]
author_facet Menezes, L. C. C. R. de [UNESP]
Rossi, M. N.
author_role author
author2 Rossi, M. N.
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de São Paulo (UNIFESP)
dc.contributor.author.fl_str_mv Menezes, L. C. C. R. de [UNESP]
Rossi, M. N.
dc.subject.por.fl_str_mv Fabaceae
Germination
Hard seed coat
High temperatures
topic Fabaceae
Germination
Hard seed coat
High temperatures
description After a fire event, germination of seeds with hard coats can be enhanced. In the present study, we investigated whether germination of Mimosa bimucronata (DC.) Kuntze (Fabaceae) seeds, which present hard coats, is increased after fire, even though these trees usually occur in damp areas, where fire is a transient event. Fire events were manipulated in trays filled with soil covered with different amounts of dry grasses, characterizing three treatments: a) 0g (control group); b) 300g, and c) 450g of dry grass. Burning treatments were applied to seeds positioned either on the soil surface or buried in the soil. Germination experiments were carried out at 0-h and 24-h after fire to obtain the germination percentage and the Germination Speed Index (GSI). For buried seeds, the control and the 300g treatments presented significantly higher germination percentages than the 450g treatment. On the other hand, the GSI was significantly higher in the 300g treatment. Significant differences were not found between 0-h and 24-h. Seeds on the soil surface did not survive after burning. Our study showed that temperatures around 100 °C significantly decrease the germinability of M. bimucronata seeds. However, when seeds were buried, the germination percentage did not differ between the control group and the 300g treatment. Results also suggest that temperatures around 60 °C may enhance the velocity of germination of M. bimucronata seeds.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-20
2014-05-27T11:26:20Z
2014-05-27T11:26:20Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.revistaphyton.fund-romuloraggio.org.ar/vol80.html
Phyton, v. 80, p. 153-160.
0031-9457
1851-5657
http://hdl.handle.net/11449/73075
WOS:000299301200023
2-s2.0-83455195683
2-s2.0-83455195683.pdf
url http://www.revistaphyton.fund-romuloraggio.org.ar/vol80.html
http://hdl.handle.net/11449/73075
identifier_str_mv Phyton, v. 80, p. 153-160.
0031-9457
1851-5657
WOS:000299301200023
2-s2.0-83455195683
2-s2.0-83455195683.pdf
dc.language.iso.fl_str_mv eng
spa
language eng
spa
dc.relation.none.fl_str_mv Phyton
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 153-160
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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