Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations

Autores
Valencia Gredilla, Francisco; Supiciche, María Laura; Chantre Balacca, Guillermo Ruben; Recasens, Jordi; Royo Esnal, Aritz
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Conyza bonariensis is one of the most problematic weed species across the world. It is considered highly noxious due to the interference with human activities, specially associated to competition with different crops. This research investigated the temperature requirements for seed germination of four different populations of C. bonariensis and the interval temperature effect in this specie. For this, different experiments were performed in growth chambers. In the first one, seeds of the four populations were maintained at constant temperatures of 5, 10, 15, 20, 25, 30 and 35ºC, and from this, we could obtain the final germination, the cardinal temperatures (base, optimum and maximum) and also the thermal time of each population. In the second experiment, we studied the influence of alternate temperatures on final germination, an important issue in annual-surface germination weeds. Seeds were exposed at different temperature regimes: 5/15, 10/20, 15/25 and 25/35ºC night/day temperature (intervals increasing 10ºC) and to 18/22, 26/24, 14/26, 12/28 and 10/30ºC night/day temperature (intervals with average of 20ºC). In general, all populations behaved similarly, with highest percentages of germination in the temperatures close to the optimum obtained (between 17.5 and 19.3ºC) both for constant and alternate temperatures. Also, germination response was accordingly with its climatic origin, where highest germination percentage at the lowest temperature assayed, were obtained from the coldest location (26.7% for Lleida). In addition, we could observe that the alternate temperatures can affect positively to total germination, especially in those ranges that are further close from the optimum temperature in its average (20ºC), with high germination percentage for all ranges and all populations . Also, the cardinal temperatures obtained shows differences across the populations. These results could help to better understand the behaviour of the specie providing valuable information to develop or improve current field emergence models.
Fil: Valencia Gredilla, Francisco. Universidad de Lleida; España
Fil: Supiciche, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Chantre Balacca, Guillermo Ruben. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Recasens, Jordi. Universidad de Lleida; España
Fil: Royo Esnal, Aritz. Universidad de Lleida; España
Materia
WEED BIOLOGY
HAIRY FLEABANE
GERMINATION RESPONSE
CARDINAL TEMPERATURES
WEED MANAGEMENT
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:11336/106918
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/106918
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populationsValencia Gredilla, FranciscoSupiciche, María LauraChantre Balacca, Guillermo RubenRecasens, JordiRoyo Esnal, AritzWEED BIOLOGYHAIRY FLEABANEGERMINATION RESPONSECARDINAL TEMPERATURESWEED MANAGEMENThttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Conyza bonariensis is one of the most problematic weed species across the world. It is considered highly noxious due to the interference with human activities, specially associated to competition with different crops. This research investigated the temperature requirements for seed germination of four different populations of C. bonariensis and the interval temperature effect in this specie. For this, different experiments were performed in growth chambers. In the first one, seeds of the four populations were maintained at constant temperatures of 5, 10, 15, 20, 25, 30 and 35ºC, and from this, we could obtain the final germination, the cardinal temperatures (base, optimum and maximum) and also the thermal time of each population. In the second experiment, we studied the influence of alternate temperatures on final germination, an important issue in annual-surface germination weeds. Seeds were exposed at different temperature regimes: 5/15, 10/20, 15/25 and 25/35ºC night/day temperature (intervals increasing 10ºC) and to 18/22, 26/24, 14/26, 12/28 and 10/30ºC night/day temperature (intervals with average of 20ºC). In general, all populations behaved similarly, with highest percentages of germination in the temperatures close to the optimum obtained (between 17.5 and 19.3ºC) both for constant and alternate temperatures. Also, germination response was accordingly with its climatic origin, where highest germination percentage at the lowest temperature assayed, were obtained from the coldest location (26.7% for Lleida). In addition, we could observe that the alternate temperatures can affect positively to total germination, especially in those ranges that are further close from the optimum temperature in its average (20ºC), with high germination percentage for all ranges and all populations . Also, the cardinal temperatures obtained shows differences across the populations. These results could help to better understand the behaviour of the specie providing valuable information to develop or improve current field emergence models.Fil: Valencia Gredilla, Francisco. Universidad de Lleida; EspañaFil: Supiciche, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaFil: Chantre Balacca, Guillermo Ruben. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Recasens, Jordi. Universidad de Lleida; EspañaFil: Royo Esnal, Aritz. Universidad de Lleida; EspañaWiley Blackwell Publishing, Inc2019-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/106918Valencia Gredilla, Francisco; Supiciche, María Laura; Chantre Balacca, Guillermo Ruben; Recasens, Jordi; Royo Esnal, Aritz; Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations; Wiley Blackwell Publishing, Inc; Annals of Applied Biology; 176; 1; 12-2019; 36-460003-4746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12556info:eu-repo/semantics/altIdentifier/doi/10.1111/aab.12556info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:12:38Zoai:ri.conicet.gov.ar:11336/106918instacron: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:34982025-09-10 13:12:38.451CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
title Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
spellingShingle Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
Valencia Gredilla, Francisco
WEED BIOLOGY
HAIRY FLEABANE
GERMINATION RESPONSE
CARDINAL TEMPERATURES
WEED MANAGEMENT
title_short Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
title_full Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
title_fullStr Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
title_full_unstemmed Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
title_sort Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations
dc.creator.none.fl_str_mv Valencia Gredilla, Francisco
Supiciche, María Laura
Chantre Balacca, Guillermo Ruben
Recasens, Jordi
Royo Esnal, Aritz
author Valencia Gredilla, Francisco
author_facet Valencia Gredilla, Francisco
Supiciche, María Laura
Chantre Balacca, Guillermo Ruben
Recasens, Jordi
Royo Esnal, Aritz
author_role author
author2 Supiciche, María Laura
Chantre Balacca, Guillermo Ruben
Recasens, Jordi
Royo Esnal, Aritz
author2_role author
author
author
author
dc.subject.none.fl_str_mv WEED BIOLOGY
HAIRY FLEABANE
GERMINATION RESPONSE
CARDINAL TEMPERATURES
WEED MANAGEMENT
topic WEED BIOLOGY
HAIRY FLEABANE
GERMINATION RESPONSE
CARDINAL TEMPERATURES
WEED MANAGEMENT
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Conyza bonariensis is one of the most problematic weed species across the world. It is considered highly noxious due to the interference with human activities, specially associated to competition with different crops. This research investigated the temperature requirements for seed germination of four different populations of C. bonariensis and the interval temperature effect in this specie. For this, different experiments were performed in growth chambers. In the first one, seeds of the four populations were maintained at constant temperatures of 5, 10, 15, 20, 25, 30 and 35ºC, and from this, we could obtain the final germination, the cardinal temperatures (base, optimum and maximum) and also the thermal time of each population. In the second experiment, we studied the influence of alternate temperatures on final germination, an important issue in annual-surface germination weeds. Seeds were exposed at different temperature regimes: 5/15, 10/20, 15/25 and 25/35ºC night/day temperature (intervals increasing 10ºC) and to 18/22, 26/24, 14/26, 12/28 and 10/30ºC night/day temperature (intervals with average of 20ºC). In general, all populations behaved similarly, with highest percentages of germination in the temperatures close to the optimum obtained (between 17.5 and 19.3ºC) both for constant and alternate temperatures. Also, germination response was accordingly with its climatic origin, where highest germination percentage at the lowest temperature assayed, were obtained from the coldest location (26.7% for Lleida). In addition, we could observe that the alternate temperatures can affect positively to total germination, especially in those ranges that are further close from the optimum temperature in its average (20ºC), with high germination percentage for all ranges and all populations . Also, the cardinal temperatures obtained shows differences across the populations. These results could help to better understand the behaviour of the specie providing valuable information to develop or improve current field emergence models.
Fil: Valencia Gredilla, Francisco. Universidad de Lleida; España
Fil: Supiciche, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Chantre Balacca, Guillermo Ruben. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Recasens, Jordi. Universidad de Lleida; España
Fil: Royo Esnal, Aritz. Universidad de Lleida; España
description Conyza bonariensis is one of the most problematic weed species across the world. It is considered highly noxious due to the interference with human activities, specially associated to competition with different crops. This research investigated the temperature requirements for seed germination of four different populations of C. bonariensis and the interval temperature effect in this specie. For this, different experiments were performed in growth chambers. In the first one, seeds of the four populations were maintained at constant temperatures of 5, 10, 15, 20, 25, 30 and 35ºC, and from this, we could obtain the final germination, the cardinal temperatures (base, optimum and maximum) and also the thermal time of each population. In the second experiment, we studied the influence of alternate temperatures on final germination, an important issue in annual-surface germination weeds. Seeds were exposed at different temperature regimes: 5/15, 10/20, 15/25 and 25/35ºC night/day temperature (intervals increasing 10ºC) and to 18/22, 26/24, 14/26, 12/28 and 10/30ºC night/day temperature (intervals with average of 20ºC). In general, all populations behaved similarly, with highest percentages of germination in the temperatures close to the optimum obtained (between 17.5 and 19.3ºC) both for constant and alternate temperatures. Also, germination response was accordingly with its climatic origin, where highest germination percentage at the lowest temperature assayed, were obtained from the coldest location (26.7% for Lleida). In addition, we could observe that the alternate temperatures can affect positively to total germination, especially in those ranges that are further close from the optimum temperature in its average (20ºC), with high germination percentage for all ranges and all populations . Also, the cardinal temperatures obtained shows differences across the populations. These results could help to better understand the behaviour of the specie providing valuable information to develop or improve current field emergence models.
publishDate 2019
dc.date.none.fl_str_mv 2019-12
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/11336/106918
Valencia Gredilla, Francisco; Supiciche, María Laura; Chantre Balacca, Guillermo Ruben; Recasens, Jordi; Royo Esnal, Aritz; Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations; Wiley Blackwell Publishing, Inc; Annals of Applied Biology; 176; 1; 12-2019; 36-46
0003-4746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/106918
identifier_str_mv Valencia Gredilla, Francisco; Supiciche, María Laura; Chantre Balacca, Guillermo Ruben; Recasens, Jordi; Royo Esnal, Aritz; Germination behaviour of Conyza bonariensis to constant and alternating temperatures across different populations; Wiley Blackwell Publishing, Inc; Annals of Applied Biology; 176; 1; 12-2019; 36-46
0003-4746
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://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12556
info:eu-repo/semantics/altIdentifier/doi/10.1111/aab.12556
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
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
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score 12.993085

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