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
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/7046
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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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1844619143232356352 |
score |
12.559606 |