The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia

Autores
Boberg, Pelle; Raffaele, Estela; Chaia, Eugenia Esther; Eneström, Johanna; Pettersson, Lars B.; D'Hertefeldt, Tina
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We examined the effect of thermal shock on the germination of seeds of three conifers, two introduced (Pseudotsuga menziesii and Pinus ponderosa), and one native to Patagonia (Araucaria araucana). Previous research has suggested increased susceptibility to invasions in burnt areas, and therefore, the effect of simulated fire (heat) on seed germination in these native and introduced species was compared. Seeds were heated to two different heat intensities (508C and 1008C)
for 1 or 5 min, which is within the temperature range reached in the upper soil layers during forest fires. Germination tests were then carried out in a growth chamber. The heat treatments had a negative effect on the germination of P. menziesii at temperatures of 1008C, and a negative effect on the germination of P. ponderosa at the temperature of 1008C and the exposure of 5 min. The heat treatments had no affect at all on A. araucana. The species with larger seeds (A. araucana) had higher survival rates after the thermal shocks. Also intraspecific differences in seed sizes possibly point at larger seeds surviving thermal shocks better than smaller seeds. In addition, thermal shock caused a delay in the onset of germination in the two introduced species, while it did not change the time for germination in A. araucana.
Fil: Boberg, Pelle. Lund University; Suecia
Fil: Raffaele, Estela. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Chaia, Eugenia Esther. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Departamento de Biología; Argentina
Fil: Eneström, Johanna. Lund University; Suecia
Fil: Pettersson, Lars B.. Lund University; Suecia
Fil: D'Hertefeldt, Tina. Lund University; Suecia
Materia
seed germination
exotic conifer
native conifer
Patagonia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/278130
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/278130
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The effect of high temperatures on seed germination of one native and two alien conifers in PatagoniaBoberg, PelleRaffaele, EstelaChaia, Eugenia EstherEneström, JohannaPettersson, Lars B.D'Hertefeldt, Tinaseed germinationexotic conifernative coniferPatagoniahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1We examined the effect of thermal shock on the germination of seeds of three conifers, two introduced (Pseudotsuga menziesii and Pinus ponderosa), and one native to Patagonia (Araucaria araucana). Previous research has suggested increased susceptibility to invasions in burnt areas, and therefore, the effect of simulated fire (heat) on seed germination in these native and introduced species was compared. Seeds were heated to two different heat intensities (508C and 1008C)<br />for 1 or 5 min, which is within the temperature range reached in the upper soil layers during forest fires. Germination tests were then carried out in a growth chamber. The heat treatments had a negative effect on the germination of P. menziesii at temperatures of 1008C, and a negative effect on the germination of P. ponderosa at the temperature of 1008C and the exposure of 5 min. The heat treatments had no affect at all on A. araucana. The species with larger seeds (A. araucana) had higher survival rates after the thermal shocks. Also intraspecific differences in seed sizes possibly point at larger seeds surviving thermal shocks better than smaller seeds. In addition, thermal shock caused a delay in the onset of germination in the two introduced species, while it did not change the time for germination in A. araucana.Fil: Boberg, Pelle. Lund University; SueciaFil: Raffaele, Estela. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Chaia, Eugenia Esther. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Departamento de Biología; ArgentinaFil: Eneström, Johanna. Lund University; SueciaFil: Pettersson, Lars B.. Lund University; SueciaFil: D'Hertefeldt, Tina. Lund University; SueciaWiley Blackwell Publishing, Inc2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/278130Boberg, Pelle; Raffaele, Estela; Chaia, Eugenia Esther; Eneström, Johanna; Pettersson, Lars B.; et al.; The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia; Wiley Blackwell Publishing, Inc; Nordic Journal of Botany; 28; 2; 11-2010; 231-2390107-055XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/j.1756-1051.2009.00572.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1756-1051.2009.00572.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T14:58:31Zoai:ri.conicet.gov.ar:11336/278130instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-23 14:58:31.621CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
title The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
spellingShingle The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
Boberg, Pelle
seed germination
exotic conifer
native conifer
Patagonia
title_short The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
title_full The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
title_fullStr The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
title_full_unstemmed The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
title_sort The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia
dc.creator.none.fl_str_mv Boberg, Pelle
Raffaele, Estela
Chaia, Eugenia Esther
Eneström, Johanna
Pettersson, Lars B.
D'Hertefeldt, Tina
author Boberg, Pelle
author_facet Boberg, Pelle
Raffaele, Estela
Chaia, Eugenia Esther
Eneström, Johanna
Pettersson, Lars B.
D'Hertefeldt, Tina
author_role author
author2 Raffaele, Estela
Chaia, Eugenia Esther
Eneström, Johanna
Pettersson, Lars B.
D'Hertefeldt, Tina
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv seed germination
exotic conifer
native conifer
Patagonia
topic seed germination
exotic conifer
native conifer
Patagonia
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We examined the effect of thermal shock on the germination of seeds of three conifers, two introduced (Pseudotsuga menziesii and Pinus ponderosa), and one native to Patagonia (Araucaria araucana). Previous research has suggested increased susceptibility to invasions in burnt areas, and therefore, the effect of simulated fire (heat) on seed germination in these native and introduced species was compared. Seeds were heated to two different heat intensities (508C and 1008C)<br />for 1 or 5 min, which is within the temperature range reached in the upper soil layers during forest fires. Germination tests were then carried out in a growth chamber. The heat treatments had a negative effect on the germination of P. menziesii at temperatures of 1008C, and a negative effect on the germination of P. ponderosa at the temperature of 1008C and the exposure of 5 min. The heat treatments had no affect at all on A. araucana. The species with larger seeds (A. araucana) had higher survival rates after the thermal shocks. Also intraspecific differences in seed sizes possibly point at larger seeds surviving thermal shocks better than smaller seeds. In addition, thermal shock caused a delay in the onset of germination in the two introduced species, while it did not change the time for germination in A. araucana.
Fil: Boberg, Pelle. Lund University; Suecia
Fil: Raffaele, Estela. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Chaia, Eugenia Esther. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Departamento de Biología; Argentina
Fil: Eneström, Johanna. Lund University; Suecia
Fil: Pettersson, Lars B.. Lund University; Suecia
Fil: D'Hertefeldt, Tina. Lund University; Suecia
description We examined the effect of thermal shock on the germination of seeds of three conifers, two introduced (Pseudotsuga menziesii and Pinus ponderosa), and one native to Patagonia (Araucaria araucana). Previous research has suggested increased susceptibility to invasions in burnt areas, and therefore, the effect of simulated fire (heat) on seed germination in these native and introduced species was compared. Seeds were heated to two different heat intensities (508C and 1008C)<br />for 1 or 5 min, which is within the temperature range reached in the upper soil layers during forest fires. Germination tests were then carried out in a growth chamber. The heat treatments had a negative effect on the germination of P. menziesii at temperatures of 1008C, and a negative effect on the germination of P. ponderosa at the temperature of 1008C and the exposure of 5 min. The heat treatments had no affect at all on A. araucana. The species with larger seeds (A. araucana) had higher survival rates after the thermal shocks. Also intraspecific differences in seed sizes possibly point at larger seeds surviving thermal shocks better than smaller seeds. In addition, thermal shock caused a delay in the onset of germination in the two introduced species, while it did not change the time for germination in A. araucana.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/278130
Boberg, Pelle; Raffaele, Estela; Chaia, Eugenia Esther; Eneström, Johanna; Pettersson, Lars B.; et al.; The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia; Wiley Blackwell Publishing, Inc; Nordic Journal of Botany; 28; 2; 11-2010; 231-239
0107-055X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/278130
identifier_str_mv Boberg, Pelle; Raffaele, Estela; Chaia, Eugenia Esther; Eneström, Johanna; Pettersson, Lars B.; et al.; The effect of high temperatures on seed germination of one native and two alien conifers in Patagonia; Wiley Blackwell Publishing, Inc; Nordic Journal of Botany; 28; 2; 11-2010; 231-239
0107-055X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://nsojournals.onlinelibrary.wiley.com/doi/10.1111/j.1756-1051.2009.00572.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1756-1051.2009.00572.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1852335883180572672
score 12.952241

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