Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency

Autores
González, Fernanda Gabriela; Aldabe, María L.; Terrile, Ignacio I.; Rondanini, Deborah Paola
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Improving wheat (Triticum aestivum L.) yield potential via higher grain number per unit area (GN) may reduce average grain weight and consequently the yield increment would be low. Thirty-nine high-yielding modern cultivars differing in spike fruiting efficiency (FE) (number of grains per gram of no-grain spike) were grown under potential conditions during two temperature-contrasting years to study the level of source limitation during grain filling and rank the main physiological determinants of potential grain weight (PGW) and actual grain weight. The response of grain weight to a 100% higher source ranged from 0 to 25%, depending on cultivar and year. No general relationship was observed between PGW and FE. The stabilized grain water content, which was partially correlated with the endosperm cell number per grain (r2 = 48%, p < 0.05), was the main variable associated to grain weight variation (r2 = 77%, p < 0.00001) in both temperate and warm years. Genetic improvement focused on increasing the sink strength through higher GN is still an alternative to increase yield potential in modern cultivars as no source limitation during grain filling was observed. The improvement of FE could be used to increase GN and yield as no general negative relationship was observed between PGW and FE.
Fil: González, Fernanda Gabriela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aldabe, María L.. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Terrile, Ignacio I.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina
Fil: Rondanini, Deborah Paola. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
Materia
Wheat
Potential Grain Weight
Fruit Efficiency
Sink-Source Ratio
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:11336/16293
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiencyGonzález, Fernanda GabrielaAldabe, María L.Terrile, Ignacio I.Rondanini, Deborah PaolaWheatPotential Grain WeightFruit EfficiencySink-Source Ratiohttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Improving wheat (Triticum aestivum L.) yield potential via higher grain number per unit area (GN) may reduce average grain weight and consequently the yield increment would be low. Thirty-nine high-yielding modern cultivars differing in spike fruiting efficiency (FE) (number of grains per gram of no-grain spike) were grown under potential conditions during two temperature-contrasting years to study the level of source limitation during grain filling and rank the main physiological determinants of potential grain weight (PGW) and actual grain weight. The response of grain weight to a 100% higher source ranged from 0 to 25%, depending on cultivar and year. No general relationship was observed between PGW and FE. The stabilized grain water content, which was partially correlated with the endosperm cell number per grain (r2 = 48%, p < 0.05), was the main variable associated to grain weight variation (r2 = 77%, p < 0.00001) in both temperate and warm years. Genetic improvement focused on increasing the sink strength through higher GN is still an alternative to increase yield potential in modern cultivars as no source limitation during grain filling was observed. The improvement of FE could be used to increase GN and yield as no general negative relationship was observed between PGW and FE.Fil: González, Fernanda Gabriela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aldabe, María L.. Universidad de Buenos Aires. Facultad de Agronomia; ArgentinaFil: Terrile, Ignacio I.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; ArgentinaFil: Rondanini, Deborah Paola. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; ArgentinaCrop Science Society Of America2014-02info: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/11336/16293González, Fernanda Gabriela; Aldabe, María L.; Terrile, Ignacio I.; Rondanini, Deborah Paola; Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency; Crop Science Society Of America; Crop Science; 54; 1; 2-2014; 297-3090011-183X1435-0653enginfo:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2013.03.0157info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/54/1/297info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:01:49Zoai:ri.conicet.gov.ar:11336/16293instacron: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 10:01:49.467CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
title Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
spellingShingle Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
González, Fernanda Gabriela
Wheat
Potential Grain Weight
Fruit Efficiency
Sink-Source Ratio
title_short Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
title_full Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
title_fullStr Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
title_full_unstemmed Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
title_sort Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency
dc.creator.none.fl_str_mv González, Fernanda Gabriela
Aldabe, María L.
Terrile, Ignacio I.
Rondanini, Deborah Paola
author González, Fernanda Gabriela
author_facet González, Fernanda Gabriela
Aldabe, María L.
Terrile, Ignacio I.
Rondanini, Deborah Paola
author_role author
author2 Aldabe, María L.
Terrile, Ignacio I.
Rondanini, Deborah Paola
author2_role author
author
author
dc.subject.none.fl_str_mv Wheat
Potential Grain Weight
Fruit Efficiency
Sink-Source Ratio
topic Wheat
Potential Grain Weight
Fruit Efficiency
Sink-Source Ratio
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Improving wheat (Triticum aestivum L.) yield potential via higher grain number per unit area (GN) may reduce average grain weight and consequently the yield increment would be low. Thirty-nine high-yielding modern cultivars differing in spike fruiting efficiency (FE) (number of grains per gram of no-grain spike) were grown under potential conditions during two temperature-contrasting years to study the level of source limitation during grain filling and rank the main physiological determinants of potential grain weight (PGW) and actual grain weight. The response of grain weight to a 100% higher source ranged from 0 to 25%, depending on cultivar and year. No general relationship was observed between PGW and FE. The stabilized grain water content, which was partially correlated with the endosperm cell number per grain (r2 = 48%, p < 0.05), was the main variable associated to grain weight variation (r2 = 77%, p < 0.00001) in both temperate and warm years. Genetic improvement focused on increasing the sink strength through higher GN is still an alternative to increase yield potential in modern cultivars as no source limitation during grain filling was observed. The improvement of FE could be used to increase GN and yield as no general negative relationship was observed between PGW and FE.
Fil: González, Fernanda Gabriela. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Aldabe, María L.. Universidad de Buenos Aires. Facultad de Agronomia; Argentina
Fil: Terrile, Ignacio I.. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina
Fil: Rondanini, Deborah Paola. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
description Improving wheat (Triticum aestivum L.) yield potential via higher grain number per unit area (GN) may reduce average grain weight and consequently the yield increment would be low. Thirty-nine high-yielding modern cultivars differing in spike fruiting efficiency (FE) (number of grains per gram of no-grain spike) were grown under potential conditions during two temperature-contrasting years to study the level of source limitation during grain filling and rank the main physiological determinants of potential grain weight (PGW) and actual grain weight. The response of grain weight to a 100% higher source ranged from 0 to 25%, depending on cultivar and year. No general relationship was observed between PGW and FE. The stabilized grain water content, which was partially correlated with the endosperm cell number per grain (r2 = 48%, p < 0.05), was the main variable associated to grain weight variation (r2 = 77%, p < 0.00001) in both temperate and warm years. Genetic improvement focused on increasing the sink strength through higher GN is still an alternative to increase yield potential in modern cultivars as no source limitation during grain filling was observed. The improvement of FE could be used to increase GN and yield as no general negative relationship was observed between PGW and FE.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
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/11336/16293
González, Fernanda Gabriela; Aldabe, María L.; Terrile, Ignacio I.; Rondanini, Deborah Paola; Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency; Crop Science Society Of America; Crop Science; 54; 1; 2-2014; 297-309
0011-183X
1435-0653
url http://hdl.handle.net/11336/16293
identifier_str_mv González, Fernanda Gabriela; Aldabe, María L.; Terrile, Ignacio I.; Rondanini, Deborah Paola; Grain weight response to different postflowering source: sink ratios in modern high-yielding argentinean wheats differing in spike fruiting efficiency; Crop Science Society Of America; Crop Science; 54; 1; 2-2014; 297-309
0011-183X
1435-0653
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.2135/cropsci2013.03.0157
info:eu-repo/semantics/altIdentifier/url/https://dl.sciencesocieties.org/publications/cs/abstracts/54/1/297
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 13.070432

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