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
- 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.
Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Produccion Vegetal.; Argentina
Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales; Argentina
Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina - Materia
-
BIOMASS PRODUCTION
CLIMATE CHANGE
HEAT STRESS
PHOTOSYNTHESIS
ZEA MAYS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/183309
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
spelling |
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 MAYShttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Heat 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.Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Produccion Vegetal.; ArgentinaFil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales; ArgentinaFil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaSouthern Cross Publishing2019-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/183309Neiff, Nicolás; Ploschuk, Edmundo Leonardo; Valentinuz, Oscar Rodolfo; Andrade, Fernando Héctor; Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering; Southern Cross Publishing; Australian Journal of Crop Science; 13; 12; 12-2019; 2053-20611835-26931835-2707CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cropj.com/neiff_13_12_2019_2053_2061.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.21475/ajcs.19.13.12.p2070info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:36Zoai:ri.conicet.gov.ar:11336/183309instacron: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 09:59:36.249CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
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 |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 |
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. Fil: Neiff, Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Produccion Vegetal.; Argentina Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales; Argentina Fil: Valentinuz, Oscar Rodolfo. Instituto Nacional de Tecnología Agropecuaria; Argentina Fil: Andrade, Fernando Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; 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 |
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/11336/183309 Neiff, Nicolás; Ploschuk, Edmundo Leonardo; Valentinuz, Oscar Rodolfo; Andrade, Fernando Héctor; Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering; Southern Cross Publishing; Australian Journal of Crop Science; 13; 12; 12-2019; 2053-2061 1835-2693 1835-2707 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/183309 |
identifier_str_mv |
Neiff, Nicolás; Ploschuk, Edmundo Leonardo; Valentinuz, Oscar Rodolfo; Andrade, Fernando Héctor; Physiological responses and post-stress recovery in field-grown maize exposed to high temperatures at flowering; Southern Cross Publishing; Australian Journal of Crop Science; 13; 12; 12-2019; 2053-2061 1835-2693 1835-2707 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.cropj.com/neiff_13_12_2019_2053_2061.pdf info:eu-repo/semantics/altIdentifier/doi/10.21475/ajcs.19.13.12.p2070 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf 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 |
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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1844613766642139136 |
score |
13.070432 |