Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops

Autores
Mayer, Luis Ignacio; Cirilo, Alfredo Gabriel; Maddonni, Gustavo Angel
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Postflowering heat stress causes the arrest of kernel growth, increasing kernel protein concentration and the relative abundance of γ-zeins, two biochemical traits contributing to maize (Zea mays L.) hardness. The impact of early and late postflowering heat stress on kernel physical traits related to hardness was studied on field-grown maize hybrids differing in their prevailing endosperm texture (two hybrids with a vitreous texture, and two others with a floury texture). Kernel texture was softened by heat stress (P < 0.001), as indicated by decreases in traits that are usually positively related to hardness (thousand-kernel weight [up to 185 g], proportion of large kernels [up to 50–65 percentage points], kernel or bulk density [up to 7 kg hL−1] and milling ratio [up to 1 g g−1]) and increases in those usually negatively related (proportion of the smaller kernels and floater percentage [up to 30 and 75 percentage points, respectively]). Most of these effects were larger (P < 0.01), as heat stress occurred earlier in the grain-filling period. Kernel physical traits of the genotypes with a predominantly floury texture varied the most (P < 0.05) in response to heat stress. Genotypic and environmental variation effects in most hardness-related traits could be accounted for by kernel density (r2 = 0.74–0.87) or bulk density (r2 = 0.79–0.93). Sowing date and genotype selections should be considered as crop management practices for reducing or preventing the potential impact of heat stress on maize hardness.
EEA Pergamino
Fil: Mayer, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; Argentina
Fil: Cirilo, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina
Fil: Maddonni, Gustavo Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
Fuente
Crop Science 59 (1) : 318-332. (Jenuary-February 2019)
Materia
Maíz
Llenado
Granos
Cultivo
Temperatura Ambiental
Maize
Filling
Grain
Cultivation
Environmental Temperature
Heat Stress
Estrés Térmico
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/6574
Acceder
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oai_identifier_str oai:localhost:20.500.12123/6574
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Kernel hardness-related traits in response to heat stress during the grain-filling period of maize cropsMayer, Luis IgnacioCirilo, Alfredo GabrielMaddonni, Gustavo AngelMaízLlenadoGranosCultivoTemperatura AmbientalMaizeFillingGrainCultivationEnvironmental TemperatureHeat StressEstrés TérmicoPostflowering heat stress causes the arrest of kernel growth, increasing kernel protein concentration and the relative abundance of γ-zeins, two biochemical traits contributing to maize (Zea mays L.) hardness. The impact of early and late postflowering heat stress on kernel physical traits related to hardness was studied on field-grown maize hybrids differing in their prevailing endosperm texture (two hybrids with a vitreous texture, and two others with a floury texture). Kernel texture was softened by heat stress (P < 0.001), as indicated by decreases in traits that are usually positively related to hardness (thousand-kernel weight [up to 185 g], proportion of large kernels [up to 50–65 percentage points], kernel or bulk density [up to 7 kg hL−1] and milling ratio [up to 1 g g−1]) and increases in those usually negatively related (proportion of the smaller kernels and floater percentage [up to 30 and 75 percentage points, respectively]). Most of these effects were larger (P < 0.01), as heat stress occurred earlier in the grain-filling period. Kernel physical traits of the genotypes with a predominantly floury texture varied the most (P < 0.05) in response to heat stress. Genotypic and environmental variation effects in most hardness-related traits could be accounted for by kernel density (r2 = 0.74–0.87) or bulk density (r2 = 0.79–0.93). Sowing date and genotype selections should be considered as crop management practices for reducing or preventing the potential impact of heat stress on maize hardness.EEA PergaminoFil: Mayer, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; ArgentinaFil: Cirilo, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; ArgentinaFil: Maddonni, Gustavo Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; ArgentinaCrop Science Society of America2019-12-26T13:51:28Z2019-12-26T13:51:28Z2019-02info: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/59/1/318http://hdl.handle.net/20.500.12123/65740011-183X1435-0653 (online)https://doi.org/10.2135/cropsci2018.04.0245Crop Science 59 (1) : 318-332. (Jenuary-February 2019)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:17:10Zoai:localhost:20.500.12123/6574instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:17:11.023INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
title Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
spellingShingle Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
Mayer, Luis Ignacio
Maíz
Llenado
Granos
Cultivo
Temperatura Ambiental
Maize
Filling
Grain
Cultivation
Environmental Temperature
Heat Stress
Estrés Térmico
title_short Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
title_full Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
title_fullStr Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
title_full_unstemmed Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
title_sort Kernel hardness-related traits in response to heat stress during the grain-filling period of maize crops
dc.creator.none.fl_str_mv Mayer, Luis Ignacio
Cirilo, Alfredo Gabriel
Maddonni, Gustavo Angel
author Mayer, Luis Ignacio
author_facet Mayer, Luis Ignacio
Cirilo, Alfredo Gabriel
Maddonni, Gustavo Angel
author_role author
author2 Cirilo, Alfredo Gabriel
Maddonni, Gustavo Angel
author2_role author
author
dc.subject.none.fl_str_mv Maíz
Llenado
Granos
Cultivo
Temperatura Ambiental
Maize
Filling
Grain
Cultivation
Environmental Temperature
Heat Stress
Estrés Térmico
topic Maíz
Llenado
Granos
Cultivo
Temperatura Ambiental
Maize
Filling
Grain
Cultivation
Environmental Temperature
Heat Stress
Estrés Térmico
dc.description.none.fl_txt_mv Postflowering heat stress causes the arrest of kernel growth, increasing kernel protein concentration and the relative abundance of γ-zeins, two biochemical traits contributing to maize (Zea mays L.) hardness. The impact of early and late postflowering heat stress on kernel physical traits related to hardness was studied on field-grown maize hybrids differing in their prevailing endosperm texture (two hybrids with a vitreous texture, and two others with a floury texture). Kernel texture was softened by heat stress (P < 0.001), as indicated by decreases in traits that are usually positively related to hardness (thousand-kernel weight [up to 185 g], proportion of large kernels [up to 50–65 percentage points], kernel or bulk density [up to 7 kg hL−1] and milling ratio [up to 1 g g−1]) and increases in those usually negatively related (proportion of the smaller kernels and floater percentage [up to 30 and 75 percentage points, respectively]). Most of these effects were larger (P < 0.01), as heat stress occurred earlier in the grain-filling period. Kernel physical traits of the genotypes with a predominantly floury texture varied the most (P < 0.05) in response to heat stress. Genotypic and environmental variation effects in most hardness-related traits could be accounted for by kernel density (r2 = 0.74–0.87) or bulk density (r2 = 0.79–0.93). Sowing date and genotype selections should be considered as crop management practices for reducing or preventing the potential impact of heat stress on maize hardness.
EEA Pergamino
Fil: Mayer, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; Argentina
Fil: Cirilo, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina
Fil: Maddonni, Gustavo Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina
description Postflowering heat stress causes the arrest of kernel growth, increasing kernel protein concentration and the relative abundance of γ-zeins, two biochemical traits contributing to maize (Zea mays L.) hardness. The impact of early and late postflowering heat stress on kernel physical traits related to hardness was studied on field-grown maize hybrids differing in their prevailing endosperm texture (two hybrids with a vitreous texture, and two others with a floury texture). Kernel texture was softened by heat stress (P < 0.001), as indicated by decreases in traits that are usually positively related to hardness (thousand-kernel weight [up to 185 g], proportion of large kernels [up to 50–65 percentage points], kernel or bulk density [up to 7 kg hL−1] and milling ratio [up to 1 g g−1]) and increases in those usually negatively related (proportion of the smaller kernels and floater percentage [up to 30 and 75 percentage points, respectively]). Most of these effects were larger (P < 0.01), as heat stress occurred earlier in the grain-filling period. Kernel physical traits of the genotypes with a predominantly floury texture varied the most (P < 0.05) in response to heat stress. Genotypic and environmental variation effects in most hardness-related traits could be accounted for by kernel density (r2 = 0.74–0.87) or bulk density (r2 = 0.79–0.93). Sowing date and genotype selections should be considered as crop management practices for reducing or preventing the potential impact of heat stress on maize hardness.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-26T13:51:28Z
2019-12-26T13:51:28Z
2019-02
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/59/1/318
http://hdl.handle.net/20.500.12123/6574
0011-183X
1435-0653 (online)
https://doi.org/10.2135/cropsci2018.04.0245
url https://dl.sciencesocieties.org/publications/cs/abstracts/59/1/318
http://hdl.handle.net/20.500.12123/6574
https://doi.org/10.2135/cropsci2018.04.0245
identifier_str_mv 0011-183X
1435-0653 (online)
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.publisher.none.fl_str_mv Crop Science Society of America
publisher.none.fl_str_mv Crop Science Society of America
dc.source.none.fl_str_mv Crop Science 59 (1) : 318-332. (Jenuary-February 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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score 12.982451

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