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
- Institución
- Universidad de Buenos Aires. Facultad de Agronomía
- OAI Identificador
- snrd:2019neiff
Ver los metadatos del registro completo
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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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1844618865286316033 |
score |
13.070432 |