Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering

Autores
Neiff, Nicolás; Ploschuk, Edmundo L.; Valentinuz, Oscar Rodolfo; Andrade, Fernando Hector
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
EEA Paraná
Fil: Neiff, Nicolás. Consejo Nacional de Investigaciónes Científicas y Técnicas; Argenti Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Producción Vegetal; Argentina
Fil: Ploschuk, Edmundo L. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Cultivos Industriales; Argentina
Fil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina.
Fil: Andrade, Fernando H. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Invetigacioes Científicas y Técnicas; Argentina.
Fuente
Australian Journal of Crop Science 13 (12) : 2053-2061 (2019)
Materia
Maíz
Estrés Térmico
Temperatura
Respuesta Fisiológica
Floración
Crecimiento
Maize
Heat Stress
Temperature
Physiological Response
Flowering
Growth
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:20.500.12123/7046

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oai_identifier_str oai:localhost:20.500.12123/7046
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network_name_str INTA Digital (INTA)
spelling Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at floweringNeiff, NicolásPloschuk, Edmundo L.Valentinuz, Oscar RodolfoAndrade, Fernando HectorMaízEstrés TérmicoTemperaturaRespuesta FisiológicaFloraciónCrecimientoMaizeHeat StressTemperaturePhysiological ResponseFloweringGrowthHeat 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.EEA ParanáFil: Neiff, Nicolás. Consejo Nacional de Investigaciónes Científicas y Técnicas; Argenti Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Producción Vegetal; ArgentinaFil: Ploschuk, Edmundo L. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Cultivos Industriales; ArgentinaFil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina.Fil: Andrade, Fernando H. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Invetigacioes Científicas y Técnicas; Argentina.Southern Cross Publishing2020-04-06T15:03:11Z2020-04-06T15:03:11Z2019-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://www.cropj.com/neiff_13_12_2019_2053_2061.pdfhttp://hdl.handle.net/20.500.12123/70461835-26931835-2707https://doi.org/10.21475/ajcs.19.13.12.p2070Australian Journal of Crop Science 13 (12) : 2053-2061 (2019)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)2025-09-29T13:44:55Zoai:localhost:20.500.12123/7046instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:55.39INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
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
Maíz
Estrés Térmico
Temperatura
Respuesta Fisiológica
Floración
Crecimiento
Maize
Heat Stress
Temperature
Physiological Response
Flowering
Growth
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 L.
Valentinuz, Oscar Rodolfo
Andrade, Fernando Hector
author Neiff, Nicolás
author_facet Neiff, Nicolás
Ploschuk, Edmundo L.
Valentinuz, Oscar Rodolfo
Andrade, Fernando Hector
author_role author
author2 Ploschuk, Edmundo L.
Valentinuz, Oscar Rodolfo
Andrade, Fernando Hector
author2_role author
author
author
dc.subject.none.fl_str_mv Maíz
Estrés Térmico
Temperatura
Respuesta Fisiológica
Floración
Crecimiento
Maize
Heat Stress
Temperature
Physiological Response
Flowering
Growth
topic Maíz
Estrés Térmico
Temperatura
Respuesta Fisiológica
Floración
Crecimiento
Maize
Heat Stress
Temperature
Physiological Response
Flowering
Growth
dc.description.none.fl_txt_mv 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.
EEA Paraná
Fil: Neiff, Nicolás. Consejo Nacional de Investigaciónes Científicas y Técnicas; Argenti Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Producción Vegetal; Argentina
Fil: Ploschuk, Edmundo L. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Cultivos Industriales; Argentina
Fil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina.
Fil: Andrade, Fernando H. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Invetigacioes Científicas y Técnicas; Argentina.
description 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.
publishDate 2019
dc.date.none.fl_str_mv 2019-12
2020-04-06T15:03:11Z
2020-04-06T15:03:11Z
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 https://www.cropj.com/neiff_13_12_2019_2053_2061.pdf
http://hdl.handle.net/20.500.12123/7046
1835-2693
1835-2707
https://doi.org/10.21475/ajcs.19.13.12.p2070
url https://www.cropj.com/neiff_13_12_2019_2053_2061.pdf
http://hdl.handle.net/20.500.12123/7046
https://doi.org/10.21475/ajcs.19.13.12.p2070
identifier_str_mv 1835-2693
1835-2707
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
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 Southern Cross Publishing
publisher.none.fl_str_mv Southern Cross Publishing
dc.source.none.fl_str_mv Australian Journal of Crop Science 13 (12) : 2053-2061 (2019)
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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