Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield

Autores
Salve, Diego Antonio; Ferreyra, Mariana Jimena; Defacio, Raquel Alicia; Maydup, María L.; Lauff, Diana B.; Tambussi, Eduardo A.; Antonietta, Mariana
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the Argentinean Andean region, maize is a main staple being cropped up to 3,900 m above sea level (masl). Yields are limited by the sharp decrease in temperature associated with altitude but also by a lack of management and breeding technologies to underpin traditional practices. In this review we discuss: (i) the main physiological changes of increasing altitude using experimental reports up to 2,650 m above sea level plus own experiments up to 3,300 masl; (ii) available genetic diversity within local races; (iii) maize cropping systems based on literature and own data from 23 surveys; and (iv) possible avenues for improving yield. Among physiological traits, major penalties are associated with delayed phenology reducing light capture, and low temperatures inhibiting photosynthesis and kernel growth rate. As a result, yields can be reduced up to 85% at 3,300 masl compared with 2,300 masl in contrast to increases at lower latitudes. Local races are characterized by a high genetic diversity that is aiming to be preserved by both in situ and ex situ conservation initiatives. However, little is known about phenotypic variation, impairing the exploitation of these genetic resources in breeding programs. Breeding strategies could consider tillering ability (to buffer stand heterogeneity) and photosynthetic recovery rates from chilling as important target traits, whereas plant density management could overcome penalties related with delayed plantings and phenology. Water availability is currently insufficient, especially at higher altitudes where most farmers rely on water from thaw, and climate change projections suggest this will worsen; thus improving water use efficiency also deserves further work.
EEA Pergamino
Fil: Salve, Diego Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; Argentina
Fil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; Argentina
Fil: Maydup, M. L. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Lauff, Diana B. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Tambussi, Eduardo A. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Antonietta, M. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fuente
Technology in Agronomy 3 : 14 (November 2023)
Materia
Maíz
Rendimiento
Variación Genética
Fisiología
Gestión
Maize
Yields
Genetic Variation
Physiology
Management
Argentina
Maíz Andino
Región Andina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/16032
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oai_identifier_str oai:localhost:20.500.12123/16032
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network_name_str INTA Digital (INTA)
spelling Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yieldSalve, Diego AntonioFerreyra, Mariana JimenaDefacio, Raquel AliciaMaydup, María L.Lauff, Diana B.Tambussi, Eduardo A.Antonietta, MarianaMaízRendimientoVariación GenéticaFisiologíaGestiónMaizeYieldsGenetic VariationPhysiologyManagementArgentinaMaíz AndinoRegión AndinaIn the Argentinean Andean region, maize is a main staple being cropped up to 3,900 m above sea level (masl). Yields are limited by the sharp decrease in temperature associated with altitude but also by a lack of management and breeding technologies to underpin traditional practices. In this review we discuss: (i) the main physiological changes of increasing altitude using experimental reports up to 2,650 m above sea level plus own experiments up to 3,300 masl; (ii) available genetic diversity within local races; (iii) maize cropping systems based on literature and own data from 23 surveys; and (iv) possible avenues for improving yield. Among physiological traits, major penalties are associated with delayed phenology reducing light capture, and low temperatures inhibiting photosynthesis and kernel growth rate. As a result, yields can be reduced up to 85% at 3,300 masl compared with 2,300 masl in contrast to increases at lower latitudes. Local races are characterized by a high genetic diversity that is aiming to be preserved by both in situ and ex situ conservation initiatives. However, little is known about phenotypic variation, impairing the exploitation of these genetic resources in breeding programs. Breeding strategies could consider tillering ability (to buffer stand heterogeneity) and photosynthetic recovery rates from chilling as important target traits, whereas plant density management could overcome penalties related with delayed plantings and phenology. Water availability is currently insufficient, especially at higher altitudes where most farmers rely on water from thaw, and climate change projections suggest this will worsen; thus improving water use efficiency also deserves further work.EEA PergaminoFil: Salve, Diego Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; ArgentinaFil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; ArgentinaFil: Maydup, M. L. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; ArgentinaFil: Lauff, Diana B. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; ArgentinaFil: Tambussi, Eduardo A. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; ArgentinaFil: Antonietta, M. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; ArgentinaMaximum Academic Press2023-11-28T11:12:41Z2023-11-28T11:12:41Z2023-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/16032https://www.maxapress.com/article/doi/10.48130/TIA-2023-00142835-9445 (online)https://doi.org/10.48130/TIA-2023-0014Technology in Agronomy 3 : 14 (November 2023)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-11-13T08:47:44Zoai:localhost:20.500.12123/16032instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-11-13 08:47:44.868INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
title Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
spellingShingle Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
Salve, Diego Antonio
Maíz
Rendimiento
Variación Genética
Fisiología
Gestión
Maize
Yields
Genetic Variation
Physiology
Management
Argentina
Maíz Andino
Región Andina
title_short Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
title_full Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
title_fullStr Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
title_full_unstemmed Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
title_sort Andean maize in Argentina : physiological effects related with altitude, genetic variation, management practices and possible avenues to improve yield
dc.creator.none.fl_str_mv Salve, Diego Antonio
Ferreyra, Mariana Jimena
Defacio, Raquel Alicia
Maydup, María L.
Lauff, Diana B.
Tambussi, Eduardo A.
Antonietta, Mariana
author Salve, Diego Antonio
author_facet Salve, Diego Antonio
Ferreyra, Mariana Jimena
Defacio, Raquel Alicia
Maydup, María L.
Lauff, Diana B.
Tambussi, Eduardo A.
Antonietta, Mariana
author_role author
author2 Ferreyra, Mariana Jimena
Defacio, Raquel Alicia
Maydup, María L.
Lauff, Diana B.
Tambussi, Eduardo A.
Antonietta, Mariana
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Maíz
Rendimiento
Variación Genética
Fisiología
Gestión
Maize
Yields
Genetic Variation
Physiology
Management
Argentina
Maíz Andino
Región Andina
topic Maíz
Rendimiento
Variación Genética
Fisiología
Gestión
Maize
Yields
Genetic Variation
Physiology
Management
Argentina
Maíz Andino
Región Andina
dc.description.none.fl_txt_mv In the Argentinean Andean region, maize is a main staple being cropped up to 3,900 m above sea level (masl). Yields are limited by the sharp decrease in temperature associated with altitude but also by a lack of management and breeding technologies to underpin traditional practices. In this review we discuss: (i) the main physiological changes of increasing altitude using experimental reports up to 2,650 m above sea level plus own experiments up to 3,300 masl; (ii) available genetic diversity within local races; (iii) maize cropping systems based on literature and own data from 23 surveys; and (iv) possible avenues for improving yield. Among physiological traits, major penalties are associated with delayed phenology reducing light capture, and low temperatures inhibiting photosynthesis and kernel growth rate. As a result, yields can be reduced up to 85% at 3,300 masl compared with 2,300 masl in contrast to increases at lower latitudes. Local races are characterized by a high genetic diversity that is aiming to be preserved by both in situ and ex situ conservation initiatives. However, little is known about phenotypic variation, impairing the exploitation of these genetic resources in breeding programs. Breeding strategies could consider tillering ability (to buffer stand heterogeneity) and photosynthetic recovery rates from chilling as important target traits, whereas plant density management could overcome penalties related with delayed plantings and phenology. Water availability is currently insufficient, especially at higher altitudes where most farmers rely on water from thaw, and climate change projections suggest this will worsen; thus improving water use efficiency also deserves further work.
EEA Pergamino
Fil: Salve, Diego Antonio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación y Desarrollo Tecnológico para la Agricultura Familiar Región NOA; Argentina
Fil: Ferreyra, Mariana Jimena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Defacio, Raquel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Recursos Genéticos; Argentina
Fil: Maydup, M. L. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Lauff, Diana B. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Tambussi, Eduardo A. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
Fil: Antonietta, M. Universidad Nacional de La Plata. Instituto de Fisiología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Fisiología Vegetal; Argentina
description In the Argentinean Andean region, maize is a main staple being cropped up to 3,900 m above sea level (masl). Yields are limited by the sharp decrease in temperature associated with altitude but also by a lack of management and breeding technologies to underpin traditional practices. In this review we discuss: (i) the main physiological changes of increasing altitude using experimental reports up to 2,650 m above sea level plus own experiments up to 3,300 masl; (ii) available genetic diversity within local races; (iii) maize cropping systems based on literature and own data from 23 surveys; and (iv) possible avenues for improving yield. Among physiological traits, major penalties are associated with delayed phenology reducing light capture, and low temperatures inhibiting photosynthesis and kernel growth rate. As a result, yields can be reduced up to 85% at 3,300 masl compared with 2,300 masl in contrast to increases at lower latitudes. Local races are characterized by a high genetic diversity that is aiming to be preserved by both in situ and ex situ conservation initiatives. However, little is known about phenotypic variation, impairing the exploitation of these genetic resources in breeding programs. Breeding strategies could consider tillering ability (to buffer stand heterogeneity) and photosynthetic recovery rates from chilling as important target traits, whereas plant density management could overcome penalties related with delayed plantings and phenology. Water availability is currently insufficient, especially at higher altitudes where most farmers rely on water from thaw, and climate change projections suggest this will worsen; thus improving water use efficiency also deserves further work.
publishDate 2023
dc.date.none.fl_str_mv 2023-11-28T11:12:41Z
2023-11-28T11:12:41Z
2023-11
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/20.500.12123/16032
https://www.maxapress.com/article/doi/10.48130/TIA-2023-0014
2835-9445 (online)
https://doi.org/10.48130/TIA-2023-0014
url http://hdl.handle.net/20.500.12123/16032
https://www.maxapress.com/article/doi/10.48130/TIA-2023-0014
https://doi.org/10.48130/TIA-2023-0014
identifier_str_mv 2835-9445 (online)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Maximum Academic Press
publisher.none.fl_str_mv Maximum Academic Press
dc.source.none.fl_str_mv Technology in Agronomy 3 : 14 (November 2023)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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