Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.cesumar.br/pesquisa/periodicos/index.php/rama/article/view/1852 http://hdl.handle.net/11449/72287 |
Resumo: | Dormancy caused by the tegument's impermeability to water is a feature of Schizolobium parahyba seeds. So that the best methodology for overcoming the species's dormancy may be determined, the seeds were submitted to mechanical scarification treatments, using sandpaper and scissors, on the opposite side of the hilum. Chemical scarification was also undertaken with sulfuric (H<inf>2</inf>SO<inf>4</inf>) and hydrochloric (HCl) acids for 30 minutes. Seeds were distributed in groups of 25 units in four petri plates. The experiment was undertaken in a BOD germination chamber at 25°C and 120 μmol.m<sup>-2</sup>.s<sup>-1</sup>. Data were used to calculate the germination capacity (G%), the Germination Velocity Index (IVG) and Mean Germination Time (TM). Imbibation curve was also calculated to analyze the dormancy type of the seeds by using the three-phase model where phase FI was completed in 6 hours and FIII was initiated after 12 hours of imbibation. Results show that whereas pre-germinative treatments trigger S. parahyba germination, mechanical scarification is the most effective method to overcome the species's dormancy. |
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Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae)Evaluation of scarification methods in overcoming dormancy of chizolobium parahyba (Vell.) Blake (Fabaceae: Caesalpinioideae)GerminationSeedsTegumentVegetal ProductionCaesalpinioideaeFabaceaeSchizolobium parahybaDormancy caused by the tegument's impermeability to water is a feature of Schizolobium parahyba seeds. So that the best methodology for overcoming the species's dormancy may be determined, the seeds were submitted to mechanical scarification treatments, using sandpaper and scissors, on the opposite side of the hilum. Chemical scarification was also undertaken with sulfuric (H<inf>2</inf>SO<inf>4</inf>) and hydrochloric (HCl) acids for 30 minutes. Seeds were distributed in groups of 25 units in four petri plates. The experiment was undertaken in a BOD germination chamber at 25°C and 120 μmol.m<sup>-2</sup>.s<sup>-1</sup>. Data were used to calculate the germination capacity (G%), the Germination Velocity Index (IVG) and Mean Germination Time (TM). Imbibation curve was also calculated to analyze the dormancy type of the seeds by using the three-phase model where phase FI was completed in 6 hours and FIII was initiated after 12 hours of imbibation. Results show that whereas pre-germinative treatments trigger S. parahyba germination, mechanical scarification is the most effective method to overcome the species's dormancy.Curso de Ciências Biológicas Centro Universitário Hermínio Hometto - UNIARARASDoutorando Do Departamento de Botânica Universidade Estadual Paulista - UNESPDoutorando Do Departamento de Botânica Universidade Estadual Paulista - UNESPCentro Universitário Hermínio Hometto - UNIARARASUniversidade Estadual Paulista (Unesp)De Oliveira Pereira, MarianaDe Souza-Leal, ThiagoLagazzi, GuilhermePedroso-De-Moraes, Cristiano [UNESP]2014-05-27T11:25:27Z2014-05-27T11:25:27Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article119-129application/pdfhttp://www.cesumar.br/pesquisa/periodicos/index.php/rama/article/view/1852Revista em Agronegocio e Meio Ambiente, v. 4, n. 1, p. 119-129, 2011.1981-99512176-9168http://hdl.handle.net/11449/722872-s2.0-800539338712-s2.0-80053933871.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista em Agronegocio e Meio Ambiente0,1560,156info:eu-repo/semantics/openAccess2023-09-30T06:04:16Zoai:repositorio.unesp.br:11449/72287Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:34:09.237921Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) Evaluation of scarification methods in overcoming dormancy of chizolobium parahyba (Vell.) Blake (Fabaceae: Caesalpinioideae) |
title |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
spellingShingle |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) De Oliveira Pereira, Mariana Germination Seeds Tegument Vegetal Production Caesalpinioideae Fabaceae Schizolobium parahyba |
title_short |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
title_full |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
title_fullStr |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
title_full_unstemmed |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
title_sort |
Avaliação de métodos de escarificação na superação de dormência de chizolobium parahyba (vell.) blake (Fabaceae: caesalpinioideae) |
author |
De Oliveira Pereira, Mariana |
author_facet |
De Oliveira Pereira, Mariana De Souza-Leal, Thiago Lagazzi, Guilherme Pedroso-De-Moraes, Cristiano [UNESP] |
author_role |
author |
author2 |
De Souza-Leal, Thiago Lagazzi, Guilherme Pedroso-De-Moraes, Cristiano [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Centro Universitário Hermínio Hometto - UNIARARAS Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
De Oliveira Pereira, Mariana De Souza-Leal, Thiago Lagazzi, Guilherme Pedroso-De-Moraes, Cristiano [UNESP] |
dc.subject.por.fl_str_mv |
Germination Seeds Tegument Vegetal Production Caesalpinioideae Fabaceae Schizolobium parahyba |
topic |
Germination Seeds Tegument Vegetal Production Caesalpinioideae Fabaceae Schizolobium parahyba |
description |
Dormancy caused by the tegument's impermeability to water is a feature of Schizolobium parahyba seeds. So that the best methodology for overcoming the species's dormancy may be determined, the seeds were submitted to mechanical scarification treatments, using sandpaper and scissors, on the opposite side of the hilum. Chemical scarification was also undertaken with sulfuric (H<inf>2</inf>SO<inf>4</inf>) and hydrochloric (HCl) acids for 30 minutes. Seeds were distributed in groups of 25 units in four petri plates. The experiment was undertaken in a BOD germination chamber at 25°C and 120 μmol.m<sup>-2</sup>.s<sup>-1</sup>. Data were used to calculate the germination capacity (G%), the Germination Velocity Index (IVG) and Mean Germination Time (TM). Imbibation curve was also calculated to analyze the dormancy type of the seeds by using the three-phase model where phase FI was completed in 6 hours and FIII was initiated after 12 hours of imbibation. Results show that whereas pre-germinative treatments trigger S. parahyba germination, mechanical scarification is the most effective method to overcome the species's dormancy. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-01 2014-05-27T11:25:27Z 2014-05-27T11:25:27Z |
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.cesumar.br/pesquisa/periodicos/index.php/rama/article/view/1852 Revista em Agronegocio e Meio Ambiente, v. 4, n. 1, p. 119-129, 2011. 1981-9951 2176-9168 http://hdl.handle.net/11449/72287 2-s2.0-80053933871 2-s2.0-80053933871.pdf |
url |
http://www.cesumar.br/pesquisa/periodicos/index.php/rama/article/view/1852 http://hdl.handle.net/11449/72287 |
identifier_str_mv |
Revista em Agronegocio e Meio Ambiente, v. 4, n. 1, p. 119-129, 2011. 1981-9951 2176-9168 2-s2.0-80053933871 2-s2.0-80053933871.pdf |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista em Agronegocio e Meio Ambiente 0,156 0,156 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
119-129 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 |
|
_version_ |
1808128248446451712 |