Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale

Autores
Dominguez, Constanza Pía; Batlla, Diego; Rodríguez, María Verónica; Windauer, Liliana Beatriz; Gerbaldo, Magdalena; Benech-Arnold, Roberto Luis
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sunflower (Helianthus annuus L.) achenes often display pericarp-imposed dormancy, which is long-lasting and causes serious problems to crop production and the seed industry. For this study we assessed an extensively used sunflower inbred line that has this type of dormancy. Our goals were (i) to determine the effect of pericarp on germination and to evaluate its impact on crop field emergence, (ii) to provide insight into the physiological basis of pericarp-imposed dormancy by determining the effects of abscisic acid (ABA) accumulation in the embryo and the embryo sensitivity to ABA during incubation at different temperatures, (iii) to assess the effect of oxidant agents and other compounds on dormancy termination, and (iv) to evaluate the feasibility of using oxidants to remove dormancy at an industrial scale. Incubation at high temperatures (i.e., 25 to 30°C) allowed the expression of dormancy, which was imposed by the pericarp and was accompanied by an increase in embryo sensitivity to ABA, but not in ABA concentration. Treated achenes with sodium hypochlorite, or their incubation in presence of an ethylene precursor or gibberellins overcame dormancy. ABA concentration decreased during incubation when treated with sodium hypochlorite. Application of sodium hypochlorite on a commercial seed lot (i.e., washing with 3 and 7%, after additional chemicals used by the industry were applied) resulted in higher germination compared with dormant non-treated controls. Field trials showed that pericarp-imposed dormancy reduced crop emergence in the inbred line tested herein. However, treating achenes with sodium hypochlorite using described industrial procedures improved field emergence.
Fil: Dominguez, Constanza Pía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Batlla, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Rodríguez, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Windauer, Liliana Beatriz. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
Fil: Gerbaldo, Magdalena. Dow AgroSciences; Argentina
Fil: Benech-Arnold, Roberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Materia
Dormancy Removal
Abscisic Acid
Sunflower Achene
Sodium Hypochlorite
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:11336/50942
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/50942
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scaleDominguez, Constanza PíaBatlla, DiegoRodríguez, María VerónicaWindauer, Liliana BeatrizGerbaldo, MagdalenaBenech-Arnold, Roberto LuisDormancy RemovalAbscisic AcidSunflower AcheneSodium Hypochloritehttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Sunflower (Helianthus annuus L.) achenes often display pericarp-imposed dormancy, which is long-lasting and causes serious problems to crop production and the seed industry. For this study we assessed an extensively used sunflower inbred line that has this type of dormancy. Our goals were (i) to determine the effect of pericarp on germination and to evaluate its impact on crop field emergence, (ii) to provide insight into the physiological basis of pericarp-imposed dormancy by determining the effects of abscisic acid (ABA) accumulation in the embryo and the embryo sensitivity to ABA during incubation at different temperatures, (iii) to assess the effect of oxidant agents and other compounds on dormancy termination, and (iv) to evaluate the feasibility of using oxidants to remove dormancy at an industrial scale. Incubation at high temperatures (i.e., 25 to 30°C) allowed the expression of dormancy, which was imposed by the pericarp and was accompanied by an increase in embryo sensitivity to ABA, but not in ABA concentration. Treated achenes with sodium hypochlorite, or their incubation in presence of an ethylene precursor or gibberellins overcame dormancy. ABA concentration decreased during incubation when treated with sodium hypochlorite. Application of sodium hypochlorite on a commercial seed lot (i.e., washing with 3 and 7%, after additional chemicals used by the industry were applied) resulted in higher germination compared with dormant non-treated controls. Field trials showed that pericarp-imposed dormancy reduced crop emergence in the inbred line tested herein. However, treating achenes with sodium hypochlorite using described industrial procedures improved field emergence.Fil: Dominguez, Constanza Pía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; ArgentinaFil: Batlla, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; ArgentinaFil: Rodríguez, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; ArgentinaFil: Windauer, Liliana Beatriz. Universidad de Buenos Aires. Facultad de Agronomía; ArgentinaFil: Gerbaldo, Magdalena. Dow AgroSciences; ArgentinaFil: Benech-Arnold, Roberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; ArgentinaCrop Science Society of America2016-03-15info: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/11336/50942Dominguez, Constanza Pía; Batlla, Diego; Rodríguez, María Verónica; Windauer, Liliana Beatriz; Gerbaldo, Magdalena; et al.; Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale; Crop Science Society of America; Crop Science; 56; 2; 15-3-2016; 716-7260011-183XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2015.06.0335info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/56/2/716info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-26T08:46:39Zoai:ri.conicet.gov.ar:11336/50942instacron: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:34982025-11-26 08:46:40.134CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
title Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
spellingShingle Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
Dominguez, Constanza Pía
Dormancy Removal
Abscisic Acid
Sunflower Achene
Sodium Hypochlorite
title_short Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
title_full Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
title_fullStr Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
title_full_unstemmed Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
title_sort Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale
dc.creator.none.fl_str_mv Dominguez, Constanza Pía
Batlla, Diego
Rodríguez, María Verónica
Windauer, Liliana Beatriz
Gerbaldo, Magdalena
Benech-Arnold, Roberto Luis
author Dominguez, Constanza Pía
author_facet Dominguez, Constanza Pía
Batlla, Diego
Rodríguez, María Verónica
Windauer, Liliana Beatriz
Gerbaldo, Magdalena
Benech-Arnold, Roberto Luis
author_role author
author2 Batlla, Diego
Rodríguez, María Verónica
Windauer, Liliana Beatriz
Gerbaldo, Magdalena
Benech-Arnold, Roberto Luis
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Dormancy Removal
Abscisic Acid
Sunflower Achene
Sodium Hypochlorite
topic Dormancy Removal
Abscisic Acid
Sunflower Achene
Sodium Hypochlorite
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 (Helianthus annuus L.) achenes often display pericarp-imposed dormancy, which is long-lasting and causes serious problems to crop production and the seed industry. For this study we assessed an extensively used sunflower inbred line that has this type of dormancy. Our goals were (i) to determine the effect of pericarp on germination and to evaluate its impact on crop field emergence, (ii) to provide insight into the physiological basis of pericarp-imposed dormancy by determining the effects of abscisic acid (ABA) accumulation in the embryo and the embryo sensitivity to ABA during incubation at different temperatures, (iii) to assess the effect of oxidant agents and other compounds on dormancy termination, and (iv) to evaluate the feasibility of using oxidants to remove dormancy at an industrial scale. Incubation at high temperatures (i.e., 25 to 30°C) allowed the expression of dormancy, which was imposed by the pericarp and was accompanied by an increase in embryo sensitivity to ABA, but not in ABA concentration. Treated achenes with sodium hypochlorite, or their incubation in presence of an ethylene precursor or gibberellins overcame dormancy. ABA concentration decreased during incubation when treated with sodium hypochlorite. Application of sodium hypochlorite on a commercial seed lot (i.e., washing with 3 and 7%, after additional chemicals used by the industry were applied) resulted in higher germination compared with dormant non-treated controls. Field trials showed that pericarp-imposed dormancy reduced crop emergence in the inbred line tested herein. However, treating achenes with sodium hypochlorite using described industrial procedures improved field emergence.
Fil: Dominguez, Constanza Pía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Batlla, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Rodríguez, María Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Windauer, Liliana Beatriz. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
Fil: Gerbaldo, Magdalena. Dow AgroSciences; Argentina
Fil: Benech-Arnold, Roberto Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
description Sunflower (Helianthus annuus L.) achenes often display pericarp-imposed dormancy, which is long-lasting and causes serious problems to crop production and the seed industry. For this study we assessed an extensively used sunflower inbred line that has this type of dormancy. Our goals were (i) to determine the effect of pericarp on germination and to evaluate its impact on crop field emergence, (ii) to provide insight into the physiological basis of pericarp-imposed dormancy by determining the effects of abscisic acid (ABA) accumulation in the embryo and the embryo sensitivity to ABA during incubation at different temperatures, (iii) to assess the effect of oxidant agents and other compounds on dormancy termination, and (iv) to evaluate the feasibility of using oxidants to remove dormancy at an industrial scale. Incubation at high temperatures (i.e., 25 to 30°C) allowed the expression of dormancy, which was imposed by the pericarp and was accompanied by an increase in embryo sensitivity to ABA, but not in ABA concentration. Treated achenes with sodium hypochlorite, or their incubation in presence of an ethylene precursor or gibberellins overcame dormancy. ABA concentration decreased during incubation when treated with sodium hypochlorite. Application of sodium hypochlorite on a commercial seed lot (i.e., washing with 3 and 7%, after additional chemicals used by the industry were applied) resulted in higher germination compared with dormant non-treated controls. Field trials showed that pericarp-imposed dormancy reduced crop emergence in the inbred line tested herein. However, treating achenes with sodium hypochlorite using described industrial procedures improved field emergence.
publishDate 2016
dc.date.none.fl_str_mv 2016-03-15
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/11336/50942
Dominguez, Constanza Pía; Batlla, Diego; Rodríguez, María Verónica; Windauer, Liliana Beatriz; Gerbaldo, Magdalena; et al.; Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale; Crop Science Society of America; Crop Science; 56; 2; 15-3-2016; 716-726
0011-183X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50942
identifier_str_mv Dominguez, Constanza Pía; Batlla, Diego; Rodríguez, María Verónica; Windauer, Liliana Beatriz; Gerbaldo, Magdalena; et al.; Pericarp-imposed dormancy in sunflower: Physiological basis, impact on crop emergence, and removal at an industrial scale; Crop Science Society of America; Crop Science; 56; 2; 15-3-2016; 716-726
0011-183X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2015.06.0335
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/56/2/716
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
application/pdf
dc.publisher.none.fl_str_mv Crop Science Society of America
publisher.none.fl_str_mv Crop Science Society of America
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 13.011256

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