Germination responses to temperature and water potential as affected by seed oil composition in sunflower
- Autores
- González Belo, Raúl; Tognetti, Jorge Alberto; Benech-arnold, Roberto Luis; Izquierdo, Natalia Gabriela
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Sunflower genotypes with increased concentration of stearic and oleic acids have been developed to fulfil industrial specific requirements. Fatty acid composition of membranes has been widely described to affect seed germination, but the effect of composition of reserve lipids on germination is still unknown. Two experiments were conducted including: traditional (high linoleic), high stearic–high oleic, high stearic–high linoleic and high oleic genotypes. Thermal and hydrotime analyses were performed on germination data obtained from the incubation of seeds at different temperatures and water potentials. Fatty acid composition affected the parameters values of thermal time model. Base temperature was inversely related to linoleic acid concentration. Genotypes with high linoleic acid concentration germinated earlier at low temperatures, while no significant differences among genotypes at temperatures above 15 °C were found. High stearic–high oleic genotypes showed lower thermal time requirement for 50% germination than traditional and high stearic–high linoleic genotypes. The parameters of hydrotime model were not affected by fatty acid composition, but at low water potentials and high temperatures thermo-dormancy was induced and strongly reduced final seed germination in all genotypes studied. In conclusion, breeding for higher oleic acid and lower linoleic acid concentration in sunflower oil may affect seed germination performance at low temperatures.
Fil: González Belo, Raúl. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Tognetti, Jorge Alberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina
Fil: Benech-arnold, Roberto Luis. Universidad de Buenos Aires. Facultad de Agronomia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Izquierdo, Natalia Gabriela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Helianthus Annuus L.
Fatty Acid Composition
Germination
Thermal Time
Hydrotime - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/4169
Ver los metadatos del registro completo
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spelling |
Germination responses to temperature and water potential as affected by seed oil composition in sunflowerGonzález Belo, RaúlTognetti, Jorge AlbertoBenech-arnold, Roberto LuisIzquierdo, Natalia GabrielaHelianthus Annuus L.Fatty Acid CompositionGerminationThermal TimeHydrotimehttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Sunflower genotypes with increased concentration of stearic and oleic acids have been developed to fulfil industrial specific requirements. Fatty acid composition of membranes has been widely described to affect seed germination, but the effect of composition of reserve lipids on germination is still unknown. Two experiments were conducted including: traditional (high linoleic), high stearic–high oleic, high stearic–high linoleic and high oleic genotypes. Thermal and hydrotime analyses were performed on germination data obtained from the incubation of seeds at different temperatures and water potentials. Fatty acid composition affected the parameters values of thermal time model. Base temperature was inversely related to linoleic acid concentration. Genotypes with high linoleic acid concentration germinated earlier at low temperatures, while no significant differences among genotypes at temperatures above 15 °C were found. High stearic–high oleic genotypes showed lower thermal time requirement for 50% germination than traditional and high stearic–high linoleic genotypes. The parameters of hydrotime model were not affected by fatty acid composition, but at low water potentials and high temperatures thermo-dormancy was induced and strongly reduced final seed germination in all genotypes studied. In conclusion, breeding for higher oleic acid and lower linoleic acid concentration in sunflower oil may affect seed germination performance at low temperatures.Fil: González Belo, Raúl. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Tognetti, Jorge Alberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Benech-arnold, Roberto Luis. Universidad de Buenos Aires. Facultad de Agronomia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Izquierdo, Natalia Gabriela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4169González Belo, Raúl; Tognetti, Jorge Alberto; Benech-arnold, Roberto Luis; Izquierdo, Natalia Gabriela; Germination responses to temperature and water potential as affected by seed oil composition in sunflower; Elsevier; Industrial Crops and Products; 62; 9-2014; 537-5440926-6690enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926669014005743info:eu-repo/semantics/altIdentifier/issn/0926-6690info:eu-repo/semantics/altIdentifier/doi/10.1016/j.indcrop.2014.09.029info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:10Zoai:ri.conicet.gov.ar:11336/4169instacron: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:34982025-09-29 10:07:10.739CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
title |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
spellingShingle |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower González Belo, Raúl Helianthus Annuus L. Fatty Acid Composition Germination Thermal Time Hydrotime |
title_short |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
title_full |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
title_fullStr |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
title_full_unstemmed |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
title_sort |
Germination responses to temperature and water potential as affected by seed oil composition in sunflower |
dc.creator.none.fl_str_mv |
González Belo, Raúl Tognetti, Jorge Alberto Benech-arnold, Roberto Luis Izquierdo, Natalia Gabriela |
author |
González Belo, Raúl |
author_facet |
González Belo, Raúl Tognetti, Jorge Alberto Benech-arnold, Roberto Luis Izquierdo, Natalia Gabriela |
author_role |
author |
author2 |
Tognetti, Jorge Alberto Benech-arnold, Roberto Luis Izquierdo, Natalia Gabriela |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Helianthus Annuus L. Fatty Acid Composition Germination Thermal Time Hydrotime |
topic |
Helianthus Annuus L. Fatty Acid Composition Germination Thermal Time Hydrotime |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
Sunflower genotypes with increased concentration of stearic and oleic acids have been developed to fulfil industrial specific requirements. Fatty acid composition of membranes has been widely described to affect seed germination, but the effect of composition of reserve lipids on germination is still unknown. Two experiments were conducted including: traditional (high linoleic), high stearic–high oleic, high stearic–high linoleic and high oleic genotypes. Thermal and hydrotime analyses were performed on germination data obtained from the incubation of seeds at different temperatures and water potentials. Fatty acid composition affected the parameters values of thermal time model. Base temperature was inversely related to linoleic acid concentration. Genotypes with high linoleic acid concentration germinated earlier at low temperatures, while no significant differences among genotypes at temperatures above 15 °C were found. High stearic–high oleic genotypes showed lower thermal time requirement for 50% germination than traditional and high stearic–high linoleic genotypes. The parameters of hydrotime model were not affected by fatty acid composition, but at low water potentials and high temperatures thermo-dormancy was induced and strongly reduced final seed germination in all genotypes studied. In conclusion, breeding for higher oleic acid and lower linoleic acid concentration in sunflower oil may affect seed germination performance at low temperatures. Fil: González Belo, Raúl. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina Fil: Tognetti, Jorge Alberto. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina Fil: Benech-arnold, Roberto Luis. Universidad de Buenos Aires. Facultad de Agronomia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina Fil: Izquierdo, Natalia Gabriela. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Sunflower genotypes with increased concentration of stearic and oleic acids have been developed to fulfil industrial specific requirements. Fatty acid composition of membranes has been widely described to affect seed germination, but the effect of composition of reserve lipids on germination is still unknown. Two experiments were conducted including: traditional (high linoleic), high stearic–high oleic, high stearic–high linoleic and high oleic genotypes. Thermal and hydrotime analyses were performed on germination data obtained from the incubation of seeds at different temperatures and water potentials. Fatty acid composition affected the parameters values of thermal time model. Base temperature was inversely related to linoleic acid concentration. Genotypes with high linoleic acid concentration germinated earlier at low temperatures, while no significant differences among genotypes at temperatures above 15 °C were found. High stearic–high oleic genotypes showed lower thermal time requirement for 50% germination than traditional and high stearic–high linoleic genotypes. The parameters of hydrotime model were not affected by fatty acid composition, but at low water potentials and high temperatures thermo-dormancy was induced and strongly reduced final seed germination in all genotypes studied. In conclusion, breeding for higher oleic acid and lower linoleic acid concentration in sunflower oil may affect seed germination performance at low temperatures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09 |
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/11336/4169 González Belo, Raúl; Tognetti, Jorge Alberto; Benech-arnold, Roberto Luis; Izquierdo, Natalia Gabriela; Germination responses to temperature and water potential as affected by seed oil composition in sunflower; Elsevier; Industrial Crops and Products; 62; 9-2014; 537-544 0926-6690 |
url |
http://hdl.handle.net/11336/4169 |
identifier_str_mv |
González Belo, Raúl; Tognetti, Jorge Alberto; Benech-arnold, Roberto Luis; Izquierdo, Natalia Gabriela; Germination responses to temperature and water potential as affected by seed oil composition in sunflower; Elsevier; Industrial Crops and Products; 62; 9-2014; 537-544 0926-6690 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926669014005743 info:eu-repo/semantics/altIdentifier/issn/0926-6690 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.indcrop.2014.09.029 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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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1844613928396521472 |
score |
13.070432 |