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

Autores
Neiff, Nicolás; Ploschuk, Edmundo Leonardo; Valentinuz, Oscar; 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. Departamento de Producción Vegetal. Corrientes, Argentina.
Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales. Buenos Aires, Argentina.
Fil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina.
Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce (EEA Balcarce). Balcarce, Buenos Aires, 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.
tbls., grafs.
Fuente
Australian Journal of Crop Science
Vol.13, no.12
2053-2061
https://cropj.com/
Materia
BIOMASS PRODUCTION
CLIMATE CHANGE
HEAT STRESS
PHOTOSYNTHESIS
ZEA MAYS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
acceso abierto
Repositorio
FAUBA Digital (UBA-FAUBA)
Institución
Universidad de Buenos Aires. Facultad de Agronomía
OAI Identificador
snrd:2019neiff

id FAUBA_2e779d2c264f5374fc95527ac7c4629a
oai_identifier_str snrd:2019neiff
network_acronym_str FAUBA
repository_id_str 2729
network_name_str FAUBA Digital (UBA-FAUBA)
spelling Physiological responses and post - stress recovery in field - grown maize exposed to high temperatures at floweringNeiff, NicolásPloschuk, Edmundo LeonardoValentinuz, OscarAndrade, Fernando HéctorBIOMASS PRODUCTIONCLIMATE CHANGEHEAT STRESSPHOTOSYNTHESISZEA MAYSFil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Producción Vegetal. Corrientes, Argentina.Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales. Buenos Aires, Argentina.Fil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina.Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce (EEA Balcarce). Balcarce, Buenos Aires, 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.tbls., grafs.2019articleinfo:eu-repo/semantics/articlepublishedVersioninfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfdoi:10.21475/ajcs.19.13.12.p2070issn:1835-2707http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2019neiffAustralian Journal of Crop ScienceVol.13, no.122053-2061https://cropj.com/reponame:FAUBA Digital (UBA-FAUBA)instname:Universidad de Buenos Aires. Facultad de Agronomíaenginfo:eu-repo/semantics/openAccessopenAccesshttp://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section42025-09-29T13:42:05Zsnrd:2019neiffinstacron:UBA-FAUBAInstitucionalhttp://ri.agro.uba.ar/Universidad públicaNo correspondehttp://ri.agro.uba.ar/greenstone3/oaiserver?verb=ListSetsmartino@agro.uba.ar;berasa@agro.uba.ar ArgentinaNo correspondeNo correspondeNo correspondeopendoar:27292025-09-29 13:42:06.58FAUBA Digital (UBA-FAUBA) - Universidad de Buenos Aires. Facultad de Agronomíafalse
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
Andrade, Fernando Héctor
author Neiff, Nicolás
author_facet Neiff, Nicolás
Ploschuk, Edmundo Leonardo
Valentinuz, Oscar
Andrade, Fernando Héctor
author_role author
author2 Ploschuk, Edmundo Leonardo
Valentinuz, Oscar
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. Departamento de Producción Vegetal. Corrientes, Argentina.
Fil: Ploschuk, Edmundo Leonardo. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales. Buenos Aires, Argentina.
Fil: Valentinuz, Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná (EEA Paraná). Paraná, Entre Ríos. Argentina.
Fil: Andrade, Fernando Héctor. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce (EEA Balcarce). Balcarce, Buenos Aires, 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.
tbls., grafs.
description Fil: Neiff, Nicolás. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Departamento de Producción Vegetal. Corrientes, Argentina.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv article
info:eu-repo/semantics/article
publishedVersion
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 doi:10.21475/ajcs.19.13.12.p2070
issn:1835-2707
http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2019neiff
identifier_str_mv doi:10.21475/ajcs.19.13.12.p2070
issn:1835-2707
url http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2019neiff
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
openAccess
http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4
eu_rights_str_mv openAccess
rights_invalid_str_mv openAccess
http://ri.agro.uba.ar/greenstone3/library/page/biblioteca#section4
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Australian Journal of Crop Science
Vol.13, no.12
2053-2061
https://cropj.com/
reponame:FAUBA Digital (UBA-FAUBA)
instname:Universidad de Buenos Aires. Facultad de Agronomía
reponame_str FAUBA Digital (UBA-FAUBA)
collection FAUBA Digital (UBA-FAUBA)
instname_str Universidad de Buenos Aires. Facultad de Agronomía
repository.name.fl_str_mv FAUBA Digital (UBA-FAUBA) - Universidad de Buenos Aires. Facultad de Agronomía
repository.mail.fl_str_mv martino@agro.uba.ar;berasa@agro.uba.ar
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score 13.070432