Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components
- Autores
- Lo Valvo, Patricio Javier; Miralles, Daniel Julio; Serrago, Roman Augusto
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The objective of this study is to update the data of genetic progress in bread wheat cultivars released in Argentina from 1918 to 2011 (emphasizing the last 20 years) characterizing different agronomic traits of interest for breeders. Experiments were carried out with a wide range of bread wheat cultivars and conducted under field conditions without nutritional and water restrictions. Yields showed a significant (R2 = 0.68) tri-linear trend when associated with the cultivar's year of release. Until the 40s, when the first inflection point occurred, the genetic progress in terms of yield was 0.8 kg ha−1 yr−1 (0.02% yr−1). Between 1940 and 1999, yield genetic progress reached its highest value (51 kg ha−1 yr−1; 1.17% yr−1) but changed after 1999 when values became lower compared to the previous period, showing a value of 14 kg ha−1 yr−1 (0.18% yr−1). Changes in grain yield were mostly explained by increases in harvest index and not by those in above-ground biomass. Plant height showed a negative bi-linear trend with the year of release, reaching an inflexion point well before the introgression of semi-dwarfing genes in commercial cultivars. Grain number increased ca. 63% when modern cultivars were compared to older ones, which explains most of the grain yield changes. In contrast to grain number, no significant differences between old and modern cultivars were found for grain weight, with average values of ca. 30 mg grain−1 for all environments explored.
Fil: Lo Valvo, Patricio Javier. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina
Fil: Miralles, Daniel Julio. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina
Fil: Serrago, Roman Augusto. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
GENETIC GAIN
GRAIN YIELD
SOURCE-SINK RATIO
TRITICUM AESTIVUM - 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:11336/55756
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
spelling |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield componentsLo Valvo, Patricio JavierMiralles, Daniel JulioSerrago, Roman AugustoGENETIC GAINGRAIN YIELDSOURCE-SINK RATIOTRITICUM AESTIVUMhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The objective of this study is to update the data of genetic progress in bread wheat cultivars released in Argentina from 1918 to 2011 (emphasizing the last 20 years) characterizing different agronomic traits of interest for breeders. Experiments were carried out with a wide range of bread wheat cultivars and conducted under field conditions without nutritional and water restrictions. Yields showed a significant (R2 = 0.68) tri-linear trend when associated with the cultivar's year of release. Until the 40s, when the first inflection point occurred, the genetic progress in terms of yield was 0.8 kg ha−1 yr−1 (0.02% yr−1). Between 1940 and 1999, yield genetic progress reached its highest value (51 kg ha−1 yr−1; 1.17% yr−1) but changed after 1999 when values became lower compared to the previous period, showing a value of 14 kg ha−1 yr−1 (0.18% yr−1). Changes in grain yield were mostly explained by increases in harvest index and not by those in above-ground biomass. Plant height showed a negative bi-linear trend with the year of release, reaching an inflexion point well before the introgression of semi-dwarfing genes in commercial cultivars. Grain number increased ca. 63% when modern cultivars were compared to older ones, which explains most of the grain yield changes. In contrast to grain number, no significant differences between old and modern cultivars were found for grain weight, with average values of ca. 30 mg grain−1 for all environments explored.Fil: Lo Valvo, Patricio Javier. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; ArgentinaFil: Miralles, Daniel Julio. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; ArgentinaFil: Serrago, Roman Augusto. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55756Lo Valvo, Patricio Javier; Miralles, Daniel Julio; Serrago, Roman Augusto; Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components; Elsevier Science; Field Crops Research; 221; 5-2018; 314-3210378-4290CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2017.08.014info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378429016308383info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:50Zoai:ri.conicet.gov.ar:11336/55756instacron: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 09:37:50.537CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
title |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
spellingShingle |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components Lo Valvo, Patricio Javier GENETIC GAIN GRAIN YIELD SOURCE-SINK RATIO TRITICUM AESTIVUM |
title_short |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
title_full |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
title_fullStr |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
title_full_unstemmed |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
title_sort |
Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components |
dc.creator.none.fl_str_mv |
Lo Valvo, Patricio Javier Miralles, Daniel Julio Serrago, Roman Augusto |
author |
Lo Valvo, Patricio Javier |
author_facet |
Lo Valvo, Patricio Javier Miralles, Daniel Julio Serrago, Roman Augusto |
author_role |
author |
author2 |
Miralles, Daniel Julio Serrago, Roman Augusto |
author2_role |
author author |
dc.subject.none.fl_str_mv |
GENETIC GAIN GRAIN YIELD SOURCE-SINK RATIO TRITICUM AESTIVUM |
topic |
GENETIC GAIN GRAIN YIELD SOURCE-SINK RATIO TRITICUM AESTIVUM |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
dc.description.none.fl_txt_mv |
The objective of this study is to update the data of genetic progress in bread wheat cultivars released in Argentina from 1918 to 2011 (emphasizing the last 20 years) characterizing different agronomic traits of interest for breeders. Experiments were carried out with a wide range of bread wheat cultivars and conducted under field conditions without nutritional and water restrictions. Yields showed a significant (R2 = 0.68) tri-linear trend when associated with the cultivar's year of release. Until the 40s, when the first inflection point occurred, the genetic progress in terms of yield was 0.8 kg ha−1 yr−1 (0.02% yr−1). Between 1940 and 1999, yield genetic progress reached its highest value (51 kg ha−1 yr−1; 1.17% yr−1) but changed after 1999 when values became lower compared to the previous period, showing a value of 14 kg ha−1 yr−1 (0.18% yr−1). Changes in grain yield were mostly explained by increases in harvest index and not by those in above-ground biomass. Plant height showed a negative bi-linear trend with the year of release, reaching an inflexion point well before the introgression of semi-dwarfing genes in commercial cultivars. Grain number increased ca. 63% when modern cultivars were compared to older ones, which explains most of the grain yield changes. In contrast to grain number, no significant differences between old and modern cultivars were found for grain weight, with average values of ca. 30 mg grain−1 for all environments explored. Fil: Lo Valvo, Patricio Javier. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina Fil: Miralles, Daniel Julio. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina Fil: Serrago, Roman Augusto. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cerealicultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
The objective of this study is to update the data of genetic progress in bread wheat cultivars released in Argentina from 1918 to 2011 (emphasizing the last 20 years) characterizing different agronomic traits of interest for breeders. Experiments were carried out with a wide range of bread wheat cultivars and conducted under field conditions without nutritional and water restrictions. Yields showed a significant (R2 = 0.68) tri-linear trend when associated with the cultivar's year of release. Until the 40s, when the first inflection point occurred, the genetic progress in terms of yield was 0.8 kg ha−1 yr−1 (0.02% yr−1). Between 1940 and 1999, yield genetic progress reached its highest value (51 kg ha−1 yr−1; 1.17% yr−1) but changed after 1999 when values became lower compared to the previous period, showing a value of 14 kg ha−1 yr−1 (0.18% yr−1). Changes in grain yield were mostly explained by increases in harvest index and not by those in above-ground biomass. Plant height showed a negative bi-linear trend with the year of release, reaching an inflexion point well before the introgression of semi-dwarfing genes in commercial cultivars. Grain number increased ca. 63% when modern cultivars were compared to older ones, which explains most of the grain yield changes. In contrast to grain number, no significant differences between old and modern cultivars were found for grain weight, with average values of ca. 30 mg grain−1 for all environments explored. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05 |
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/11336/55756 Lo Valvo, Patricio Javier; Miralles, Daniel Julio; Serrago, Roman Augusto; Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components; Elsevier Science; Field Crops Research; 221; 5-2018; 314-321 0378-4290 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/55756 |
identifier_str_mv |
Lo Valvo, Patricio Javier; Miralles, Daniel Julio; Serrago, Roman Augusto; Genetic progress in Argentine bread wheat varieties released between 1918 and 2011: Changes in physiological and numerical yield components; Elsevier Science; Field Crops Research; 221; 5-2018; 314-321 0378-4290 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.fcr.2017.08.014 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378429016308383 |
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 |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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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1844613193756835840 |
score |
13.070432 |