Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering
- Autores
- Neiff, Nicolás; Ploschuk, Edmundo Leonardo; Valentinuz, Oscar Rodolfo; Andrade, Fernando Héctor
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Fil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.
Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.
Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.
Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Paraná; Argentina.
Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Balcarce; Argentina.
Heat stress affects physiological traits and biomass production in major crops, including maize. We researched the responses of maximum efficiency of photosystem II (Fv/Fm), relative cell injury (RCI), stomatal conductance (gs ), internal CO2 concentration (Ci ), leaf photosynthesis (CER), and crop growth rate (CGR) in two maize cultivars exposed to high temperatures around silking (R1) under field conditions. Temperature regimes (i.e. control and heat) were performed during the pre-silking (–15d R1 to R1) and post-silking (R1+2d to R1+17d) periods. In the heat treatments, polyethylene shelters were used in order to increase daytime temperatures around midday (from 10 A.M. to 2 P.M.) during each period (i.e., pre- and post-silking). In the control treatments, the shelters remained open during the entire growing season. Gas exchange variables, Fv/Fm and relative cell injury (RCI) were measured on ear leaves. CGR was estimated based on biomass samples. CER and Fv/Fm presented maximum reductions at the end of the daytime heating. However, 30 min after the shelters were reopened, Fv/Fm of heated leaves reached values similar to controls, which were closely linked to CER recoveries. RCI was negatively associated with Fv/Fm, and cell injury increased gradually as heating continued. Ci was unaffected by heat treatment, indicating that gs was not the primary cause of CER reduction. Heat stress decreased CGR, and the reduction was positively associated with CER and Fv/Fm in both heating periods. We attempted to scale from cell to crop level and identify some physiological traits that could be helpful in breeding programs for heat stress tolerance. - Fuente
- Australian Journal of Crop Science, 2019, vol. 13, no. 12, p. 2053-2061.
- Materia
-
Biomass production
Climate change
Heat stress
Photosynthesis
Zea mays - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Universidad Nacional del Nordeste
- OAI Identificador
- oai:repositorio.unne.edu.ar:123456789/55323
Ver los metadatos del registro completo
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Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at floweringNeiff, NicolásPloschuk, Edmundo LeonardoValentinuz, Oscar RodolfoAndrade, Fernando HéctorBiomass productionClimate changeHeat stressPhotosynthesisZea maysFil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina.Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina.Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía; Argentina.Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Paraná; Argentina.Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Balcarce; Argentina.Heat stress affects physiological traits and biomass production in major crops, including maize. We researched the responses of maximum efficiency of photosystem II (Fv/Fm), relative cell injury (RCI), stomatal conductance (gs ), internal CO2 concentration (Ci ), leaf photosynthesis (CER), and crop growth rate (CGR) in two maize cultivars exposed to high temperatures around silking (R1) under field conditions. Temperature regimes (i.e. control and heat) were performed during the pre-silking (–15d R1 to R1) and post-silking (R1+2d to R1+17d) periods. In the heat treatments, polyethylene shelters were used in order to increase daytime temperatures around midday (from 10 A.M. to 2 P.M.) during each period (i.e., pre- and post-silking). In the control treatments, the shelters remained open during the entire growing season. Gas exchange variables, Fv/Fm and relative cell injury (RCI) were measured on ear leaves. CGR was estimated based on biomass samples. CER and Fv/Fm presented maximum reductions at the end of the daytime heating. However, 30 min after the shelters were reopened, Fv/Fm of heated leaves reached values similar to controls, which were closely linked to CER recoveries. RCI was negatively associated with Fv/Fm, and cell injury increased gradually as heating continued. Ci was unaffected by heat treatment, indicating that gs was not the primary cause of CER reduction. Heat stress decreased CGR, and the reduction was positively associated with CER and Fv/Fm in both heating periods. We attempted to scale from cell to crop level and identify some physiological traits that could be helpful in breeding programs for heat stress tolerance.Southern Cross Publishing2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfp. 2053-2061application/pdfNeiff, Nicolás, et al., 2019. Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering. Australian Journal of Crop Science. Lismore: Southern Cross Publishing, vol. 13, no. 12, p. 2053-2061. E-ISSN: 1835-2707. DOI: https://doi.org/10.21475/ajcs.19.13.12.p2070.1835-2693http://repositorio.unne.edu.ar/handle/123456789/55323Australian Journal of Crop Science, 2019, vol. 13, no. 12, p. 2053-2061.reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)instname:Universidad Nacional del Nordesteenghttps://doi.org/10.21475/ajcs.19.13.12.p2070info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/2.5/ar/Atribución-NoComercial-SinDerivadas 2.5 Argentina2025-09-29T14:29:17Zoai:repositorio.unne.edu.ar:123456789/55323instacron:UNNEInstitucionalhttp://repositorio.unne.edu.ar/Universidad públicaNo correspondehttp://repositorio.unne.edu.ar/oaiososa@bib.unne.edu.ar;sergio.alegria@unne.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:48712025-09-29 14:29:18.199Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordestefalse |
dc.title.none.fl_str_mv |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
title |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
spellingShingle |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering Neiff, Nicolás Biomass production Climate change Heat stress Photosynthesis Zea mays |
title_short |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
title_full |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
title_fullStr |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
title_full_unstemmed |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
title_sort |
Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering |
dc.creator.none.fl_str_mv |
Neiff, Nicolás Ploschuk, Edmundo Leonardo Valentinuz, Oscar Rodolfo Andrade, Fernando Héctor |
author |
Neiff, Nicolás |
author_facet |
Neiff, Nicolás Ploschuk, Edmundo Leonardo Valentinuz, Oscar Rodolfo Andrade, Fernando Héctor |
author_role |
author |
author2 |
Ploschuk, Edmundo Leonardo Valentinuz, Oscar Rodolfo Andrade, Fernando Héctor |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Biomass production Climate change Heat stress Photosynthesis Zea mays |
topic |
Biomass production Climate change Heat stress Photosynthesis Zea mays |
dc.description.none.fl_txt_mv |
Fil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Ecología Aplicada del Litoral; Argentina. Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Paraná; Argentina. Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria. Estación Experimental Agropecuaria Balcarce; Argentina. Heat stress affects physiological traits and biomass production in major crops, including maize. We researched the responses of maximum efficiency of photosystem II (Fv/Fm), relative cell injury (RCI), stomatal conductance (gs ), internal CO2 concentration (Ci ), leaf photosynthesis (CER), and crop growth rate (CGR) in two maize cultivars exposed to high temperatures around silking (R1) under field conditions. Temperature regimes (i.e. control and heat) were performed during the pre-silking (–15d R1 to R1) and post-silking (R1+2d to R1+17d) periods. In the heat treatments, polyethylene shelters were used in order to increase daytime temperatures around midday (from 10 A.M. to 2 P.M.) during each period (i.e., pre- and post-silking). In the control treatments, the shelters remained open during the entire growing season. Gas exchange variables, Fv/Fm and relative cell injury (RCI) were measured on ear leaves. CGR was estimated based on biomass samples. CER and Fv/Fm presented maximum reductions at the end of the daytime heating. However, 30 min after the shelters were reopened, Fv/Fm of heated leaves reached values similar to controls, which were closely linked to CER recoveries. RCI was negatively associated with Fv/Fm, and cell injury increased gradually as heating continued. Ci was unaffected by heat treatment, indicating that gs was not the primary cause of CER reduction. Heat stress decreased CGR, and the reduction was positively associated with CER and Fv/Fm in both heating periods. We attempted to scale from cell to crop level and identify some physiological traits that could be helpful in breeding programs for heat stress tolerance. |
description |
Fil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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 |
Neiff, Nicolás, et al., 2019. Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering. Australian Journal of Crop Science. Lismore: Southern Cross Publishing, vol. 13, no. 12, p. 2053-2061. E-ISSN: 1835-2707. DOI: https://doi.org/10.21475/ajcs.19.13.12.p2070. 1835-2693 http://repositorio.unne.edu.ar/handle/123456789/55323 |
identifier_str_mv |
Neiff, Nicolás, et al., 2019. Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering. Australian Journal of Crop Science. Lismore: Southern Cross Publishing, vol. 13, no. 12, p. 2053-2061. E-ISSN: 1835-2707. DOI: https://doi.org/10.21475/ajcs.19.13.12.p2070. 1835-2693 |
url |
http://repositorio.unne.edu.ar/handle/123456789/55323 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://doi.org/10.21475/ajcs.19.13.12.p2070 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Atribución-NoComercial-SinDerivadas 2.5 Argentina |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ Atribución-NoComercial-SinDerivadas 2.5 Argentina |
dc.format.none.fl_str_mv |
application/pdf p. 2053-2061 application/pdf |
dc.publisher.none.fl_str_mv |
Southern Cross Publishing |
publisher.none.fl_str_mv |
Southern Cross Publishing |
dc.source.none.fl_str_mv |
Australian Journal of Crop Science, 2019, vol. 13, no. 12, p. 2053-2061. reponame:Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) instname:Universidad Nacional del Nordeste |
reponame_str |
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
collection |
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
instname_str |
Universidad Nacional del Nordeste |
repository.name.fl_str_mv |
Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) - Universidad Nacional del Nordeste |
repository.mail.fl_str_mv |
ososa@bib.unne.edu.ar;sergio.alegria@unne.edu.ar |
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1844621660245721088 |
score |
12.559606 |