Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism

Autores
Cicchino, Mariano Andres; Rattalino Edreira, Juan Ignacio; Otegui, Maria Elena
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Hormonal plant growth regulators (HPGRs) have been evaluated in field grown maize (Zea mays L.), but never as a tool for prevention or mitigation of heat stress. We analyzed grain yield determination of maize crops exposed to contrasting temperature regimes (nonheated control plots [TC]; heated plots [TH]) and the application of HPGRs associated with ethylene metabolism (ethephon [ETH]; MCP [1-MCP]). Heating extended over daytime hours between V11 and tasseling (VT), and products were sprayed immediately before (V11) and/or during (V16) heating. Plants treated with ETH always had reduced height (10–21%) and leaf area (3–10%), but these trends usually had no effect on light interception during treatment period. Biomass production was markedly affected by heating, but a significant interaction effect (P < 0.01) indicated that HPGRs caused (i) no effect among TH plots, and (ii) a decrease (13–19% for ETH and 3.8–9.4% for MCP) among TC plots. The interaction effect computed for grain yield highlighted that ETH had mild negative effects (≤ 18%) among TC plots and large positive effects among TH plots (up to 73%), whereas MCP had no effect among the former and mild positive (V16) or negative (V11) effects among the latter. Variations in grain yield were due to variations in kernel numbers (r2 ≥ 0.92), which were explained by ear growth rate around flowering (r2 ≥ 0.97). Timely application of HPGRs was critical for improving biomass allocation to the ear (ETH) and having adequate blockage of ethylene receptors (MCP).
EEA Cuenca del Salado
Fil: Cicchino, Mariano Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomus; Argentina
Fil: Rattalino Edreira, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina
Fuente
Crop science 53 (5) : 2135-2146. (July 2013)
Materia
Maíz
Estrés Térmico
Respuesta Fisiológica
Sustancias de Crecimiento Vegetal
Hormonas
Etileno
Maize
Heat Stress
Physiological Response
Plant Growth Substances
Hormones
Ethylene
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2570
Acceder
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oai_identifier_str oai:localhost:20.500.12123/2570
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene MetabolismCicchino, Mariano AndresRattalino Edreira, Juan IgnacioOtegui, Maria ElenaMaízEstrés TérmicoRespuesta FisiológicaSustancias de Crecimiento VegetalHormonasEtilenoMaizeHeat StressPhysiological ResponsePlant Growth SubstancesHormonesEthyleneHormonal plant growth regulators (HPGRs) have been evaluated in field grown maize (Zea mays L.), but never as a tool for prevention or mitigation of heat stress. We analyzed grain yield determination of maize crops exposed to contrasting temperature regimes (nonheated control plots [TC]; heated plots [TH]) and the application of HPGRs associated with ethylene metabolism (ethephon [ETH]; MCP [1-MCP]). Heating extended over daytime hours between V11 and tasseling (VT), and products were sprayed immediately before (V11) and/or during (V16) heating. Plants treated with ETH always had reduced height (10–21%) and leaf area (3–10%), but these trends usually had no effect on light interception during treatment period. Biomass production was markedly affected by heating, but a significant interaction effect (P < 0.01) indicated that HPGRs caused (i) no effect among TH plots, and (ii) a decrease (13–19% for ETH and 3.8–9.4% for MCP) among TC plots. The interaction effect computed for grain yield highlighted that ETH had mild negative effects (≤ 18%) among TC plots and large positive effects among TH plots (up to 73%), whereas MCP had no effect among the former and mild positive (V16) or negative (V11) effects among the latter. Variations in grain yield were due to variations in kernel numbers (r2 ≥ 0.92), which were explained by ear growth rate around flowering (r2 ≥ 0.97). Timely application of HPGRs was critical for improving biomass allocation to the ear (ETH) and having adequate blockage of ethylene receptors (MCP).EEA Cuenca del SaladoFil: Cicchino, Mariano Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomus; ArgentinaFil: Rattalino Edreira, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina2018-06-07T17:01:06Z2018-06-07T17:01:06Z2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://dl.sciencesocieties.org/publications/cs/abstracts/53/5/2135?access=0&view=pdfhttp://hdl.handle.net/20.500.12123/25700011-183X1435-0653http://dx.doi.org/10.2135/cropsci2013.03.0136Crop science 53 (5) : 2135-2146. (July 2013)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-29T13:44:20Zoai:localhost:20.500.12123/2570instacron: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 13:44:20.536INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
title Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
spellingShingle Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
Cicchino, Mariano Andres
Maíz
Estrés Térmico
Respuesta Fisiológica
Sustancias de Crecimiento Vegetal
Hormonas
Etileno
Maize
Heat Stress
Physiological Response
Plant Growth Substances
Hormones
Ethylene
title_short Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
title_full Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
title_fullStr Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
title_full_unstemmed Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
title_sort Maize Physiological Responses to Heat Stress and Hormonal Plant Growth Regulators Related to Ethylene Metabolism
dc.creator.none.fl_str_mv Cicchino, Mariano Andres
Rattalino Edreira, Juan Ignacio
Otegui, Maria Elena
author Cicchino, Mariano Andres
author_facet Cicchino, Mariano Andres
Rattalino Edreira, Juan Ignacio
Otegui, Maria Elena
author_role author
author2 Rattalino Edreira, Juan Ignacio
Otegui, Maria Elena
author2_role author
author
dc.subject.none.fl_str_mv Maíz
Estrés Térmico
Respuesta Fisiológica
Sustancias de Crecimiento Vegetal
Hormonas
Etileno
Maize
Heat Stress
Physiological Response
Plant Growth Substances
Hormones
Ethylene
topic Maíz
Estrés Térmico
Respuesta Fisiológica
Sustancias de Crecimiento Vegetal
Hormonas
Etileno
Maize
Heat Stress
Physiological Response
Plant Growth Substances
Hormones
Ethylene
dc.description.none.fl_txt_mv Hormonal plant growth regulators (HPGRs) have been evaluated in field grown maize (Zea mays L.), but never as a tool for prevention or mitigation of heat stress. We analyzed grain yield determination of maize crops exposed to contrasting temperature regimes (nonheated control plots [TC]; heated plots [TH]) and the application of HPGRs associated with ethylene metabolism (ethephon [ETH]; MCP [1-MCP]). Heating extended over daytime hours between V11 and tasseling (VT), and products were sprayed immediately before (V11) and/or during (V16) heating. Plants treated with ETH always had reduced height (10–21%) and leaf area (3–10%), but these trends usually had no effect on light interception during treatment period. Biomass production was markedly affected by heating, but a significant interaction effect (P < 0.01) indicated that HPGRs caused (i) no effect among TH plots, and (ii) a decrease (13–19% for ETH and 3.8–9.4% for MCP) among TC plots. The interaction effect computed for grain yield highlighted that ETH had mild negative effects (≤ 18%) among TC plots and large positive effects among TH plots (up to 73%), whereas MCP had no effect among the former and mild positive (V16) or negative (V11) effects among the latter. Variations in grain yield were due to variations in kernel numbers (r2 ≥ 0.92), which were explained by ear growth rate around flowering (r2 ≥ 0.97). Timely application of HPGRs was critical for improving biomass allocation to the ear (ETH) and having adequate blockage of ethylene receptors (MCP).
EEA Cuenca del Salado
Fil: Cicchino, Mariano Andres. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomus; Argentina
Fil: Rattalino Edreira, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Otegui, Maria Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas A la Agricultura; Argentina
description Hormonal plant growth regulators (HPGRs) have been evaluated in field grown maize (Zea mays L.), but never as a tool for prevention or mitigation of heat stress. We analyzed grain yield determination of maize crops exposed to contrasting temperature regimes (nonheated control plots [TC]; heated plots [TH]) and the application of HPGRs associated with ethylene metabolism (ethephon [ETH]; MCP [1-MCP]). Heating extended over daytime hours between V11 and tasseling (VT), and products were sprayed immediately before (V11) and/or during (V16) heating. Plants treated with ETH always had reduced height (10–21%) and leaf area (3–10%), but these trends usually had no effect on light interception during treatment period. Biomass production was markedly affected by heating, but a significant interaction effect (P < 0.01) indicated that HPGRs caused (i) no effect among TH plots, and (ii) a decrease (13–19% for ETH and 3.8–9.4% for MCP) among TC plots. The interaction effect computed for grain yield highlighted that ETH had mild negative effects (≤ 18%) among TC plots and large positive effects among TH plots (up to 73%), whereas MCP had no effect among the former and mild positive (V16) or negative (V11) effects among the latter. Variations in grain yield were due to variations in kernel numbers (r2 ≥ 0.92), which were explained by ear growth rate around flowering (r2 ≥ 0.97). Timely application of HPGRs was critical for improving biomass allocation to the ear (ETH) and having adequate blockage of ethylene receptors (MCP).
publishDate 2013
dc.date.none.fl_str_mv 2013-07
2018-06-07T17:01:06Z
2018-06-07T17:01:06Z
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://dl.sciencesocieties.org/publications/cs/abstracts/53/5/2135?access=0&view=pdf
http://hdl.handle.net/20.500.12123/2570
0011-183X
1435-0653
http://dx.doi.org/10.2135/cropsci2013.03.0136
url https://dl.sciencesocieties.org/publications/cs/abstracts/53/5/2135?access=0&view=pdf
http://hdl.handle.net/20.500.12123/2570
http://dx.doi.org/10.2135/cropsci2013.03.0136
identifier_str_mv 0011-183X
1435-0653
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Crop science 53 (5) : 2135-2146. (July 2013)
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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score 12.559606

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