Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia

Understanding basic information on weed biology contributes to the implementation of appropriate management and control strategies. Thus, this work was developed to evaluate the germination of Spermacoce latifolia Aubl. seeds, an important weed in reforestation areas. The seeds were subjected to dor...

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Detalles Bibliográficos
Autores: Parreira, Mariana C. [UNESP], Cardozo, Nilceu P. [UNESP], Giancotti, Paulo R. F. [UNESP], Da C. A. Alves, Pedro L. [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:portugués
OAI Identifier:oai:repositorio.unesp.br:11449/72531
Acceso en línea:http://dx.doi.org/10.5039/agraria.v6i3a1031
http://hdl.handle.net/11449/72531
Access Level:acceso abierto
Palabra clave:Light quality
Scarification
Temperature
Water availability
Spermacoce latifolia
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spelling Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifoliaDormancy break and influence of environmental factors on the germination of Spermacoce latifolia seedsLight qualityScarificationTemperatureWater availabilitySpermacoce latifoliaUnderstanding basic information on weed biology contributes to the implementation of appropriate management and control strategies. Thus, this work was developed to evaluate the germination of Spermacoce latifolia Aubl. seeds, an important weed in reforestation areas. The seeds were subjected to dormancy break treatments, in which the mechanical scarification, chemical treatment (H2SO 4 and KNO 3), heat treatment, and control, were evaluated. Three more tests were done determinate the effects of temperature (10, 15, 20, 25, 30 and 35°C), light filters (absence of light and red, green, yellow, distant red, blue, orange and clear light) and water availability (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) on the seeds germination and vigor. The treatments were arranged in a completely randomized design with four replications, and the experimental plot was constituted by gerbox plastic boxes with 50 seeds. The mechanical scarification (sanding) provided the best dormancy break, indicating that Spermacoce latifolia seeds have tegument water impermeability. The seeds showed higher germination percentage under conditions of mild water stress (-0.2 MPa) and the optimal temperature was 25°C. The blue light reduced seed germination.Universidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal Laboratório de Biologia e Manejo de Plantas Daninhas, Rod. de Acesso Prof. Paulo Donato Castellane, km 5, Zona rural, CEP 14884-900, Jaboticabal-SPUniversidade Estadual Paulista Júlio de Mesquita Filho Faculdade de Ciências Agrárias e Veterinárias de Jaboticabal Laboratório de Biologia e Manejo de Plantas Daninhas, Rod. de Acesso Prof. Paulo Donato Castellane, km 5, Zona rural, CEP 14884-900, Jaboticabal-SPUniversidade Estadual Paulista (Unesp)2014-05-27T11:25:56Z2014-05-27T11:25:56Z2011-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article427-431application/pdfhttp://dx.doi.org/10.5039/agraria.v6i3a1031Revista Brasileirade Ciencias Agrarias, v. 6, n. 3, p. 427-431, 2011.1981-11601981-0997http://hdl.handle.net/11449/7253110.5039/agraria.v6i3a10312-s2.0-800530403062-s2.0-80053040306.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileirade Ciencias Agrarias0,2880,288info:eu-repo/semantics/openAccessParreira, Mariana C. [UNESP]Cardozo, Nilceu P. [UNESP]Giancotti, Paulo R. F. [UNESP]Da C. A. Alves, Pedro L. [UNESP]2025-10-22T05:41:55Zoai:repositorio.unesp.br:11449/72531Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-10-22T05:41:55Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
Dormancy break and influence of environmental factors on the germination of Spermacoce latifolia seeds
title Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
spellingShingle Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
Parreira, Mariana C. [UNESP]
Light quality
Scarification
Temperature
Water availability
Spermacoce latifolia
title_short Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
title_full Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
title_fullStr Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
title_full_unstemmed Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
title_sort Superação de dormência e influência dos fatores ambientais na germinação de sementes de Spermacoce latifolia
dc.creator.none.fl_str_mv Parreira, Mariana C. [UNESP]
Cardozo, Nilceu P. [UNESP]
Giancotti, Paulo R. F. [UNESP]
Da C. A. Alves, Pedro L. [UNESP]
author Parreira, Mariana C. [UNESP]
author_facet Parreira, Mariana C. [UNESP]
Cardozo, Nilceu P. [UNESP]
Giancotti, Paulo R. F. [UNESP]
Da C. A. Alves, Pedro L. [UNESP]
author_role author
author2 Cardozo, Nilceu P. [UNESP]
Giancotti, Paulo R. F. [UNESP]
Da C. A. Alves, Pedro L. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.subject.por.fl_str_mv Light quality
Scarification
Temperature
Water availability
Spermacoce latifolia
topic Light quality
Scarification
Temperature
Water availability
Spermacoce latifolia
description Understanding basic information on weed biology contributes to the implementation of appropriate management and control strategies. Thus, this work was developed to evaluate the germination of Spermacoce latifolia Aubl. seeds, an important weed in reforestation areas. The seeds were subjected to dormancy break treatments, in which the mechanical scarification, chemical treatment (H2SO 4 and KNO 3), heat treatment, and control, were evaluated. Three more tests were done determinate the effects of temperature (10, 15, 20, 25, 30 and 35°C), light filters (absence of light and red, green, yellow, distant red, blue, orange and clear light) and water availability (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa) on the seeds germination and vigor. The treatments were arranged in a completely randomized design with four replications, and the experimental plot was constituted by gerbox plastic boxes with 50 seeds. The mechanical scarification (sanding) provided the best dormancy break, indicating that Spermacoce latifolia seeds have tegument water impermeability. The seeds showed higher germination percentage under conditions of mild water stress (-0.2 MPa) and the optimal temperature was 25°C. The blue light reduced seed germination.
publishDate 2011
dc.date.none.fl_str_mv 2011-07-01
2014-05-27T11:25:56Z
2014-05-27T11:25:56Z
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://dx.doi.org/10.5039/agraria.v6i3a1031
Revista Brasileirade Ciencias Agrarias, v. 6, n. 3, p. 427-431, 2011.
1981-1160
1981-0997
http://hdl.handle.net/11449/72531
10.5039/agraria.v6i3a1031
2-s2.0-80053040306
2-s2.0-80053040306.pdf
url http://dx.doi.org/10.5039/agraria.v6i3a1031
http://hdl.handle.net/11449/72531
identifier_str_mv Revista Brasileirade Ciencias Agrarias, v. 6, n. 3, p. 427-431, 2011.
1981-1160
1981-0997
10.5039/agraria.v6i3a1031
2-s2.0-80053040306
2-s2.0-80053040306.pdf
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Revista Brasileirade Ciencias Agrarias
0,288
0,288
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 427-431
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 repositoriounesp@unesp.br
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