Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought

Autores
Antonietta, Mariana; Maydup, María Luján; Cano, María Gabriela; Fanello, Diego Darío; Acciaresi, Horacio Abel; Guiamet, Juan José
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Delayed canopy senescence or ‘stay-green’ (SG) trait in maize (Zea mays L.) could improve drought tolerance. Two field trials comparing four to six maize hybrids with different senescence rate were carried out at Buenos Aires, Argentina, varying water availability during the reproductive period. Green leaf area at maturity was related to kernel weight (r2 = 0.94***) but its relationship with yield was weaker (r2 = 0.51–53*) and post-silking dry matter remobilisation was negatively related with the SG trait (r2 = 0.84**). Two additional experiments were carried out in 63 L pots by withholding irrigation in half of the pots after silking. The SG hybrid achieved lower root biomass at silking, a shallower root distribution and larger root growth in the post-silking period. Under drought conditions, stomatal conductance was lower in the SG hybrid but photosynthetic electron transport rate was higher. Higher post-silking dry matter assimilation in the SG hybrid was compensated for by higher dry matter remobilisation in the non-SG. Higher kernel number per plant in the non-SG hybrid with no ability to compensate for by higher kernel weight in the SG, resulted in slightly higher yields in the non-SG under drought. A water conservation strategy associated with a shallower root system could be linked to the SG trait, promoting faster water depletion at upper soil levels and reduced stomatal conductance at the leaf level but with no conclusive yield advantage.
EEA Pergamino
Fil: Antonietta, M. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Maydup, M. L. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Cano, M. G. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Fanello, D. D. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; Argentina
Fil: Acciaresi, Horacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
Fil: Guiamet, J. J. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fuente
Functional Plant Biology 48 (11) : 1124-1138. (2021)
Materia
Maíz
Zea mays
Fotosíntesis
Absorción de Agua
Asimilación
Conductancia Estomática
Photosynthesis
Water Uptake
Assimilation
Stomatal Conductance
Maize
Biomasa Radicular
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/11005
Acceder
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oai_identifier_str oai:localhost:20.500.12123/11005
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spelling Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking droughtAntonietta, MarianaMaydup, María LujánCano, María GabrielaFanello, Diego DaríoAcciaresi, Horacio AbelGuiamet, Juan JoséMaízZea maysFotosíntesisAbsorción de AguaAsimilaciónConductancia EstomáticaPhotosynthesisWater UptakeAssimilationStomatal ConductanceMaizeBiomasa RadicularDelayed canopy senescence or ‘stay-green’ (SG) trait in maize (Zea mays L.) could improve drought tolerance. Two field trials comparing four to six maize hybrids with different senescence rate were carried out at Buenos Aires, Argentina, varying water availability during the reproductive period. Green leaf area at maturity was related to kernel weight (r2 = 0.94***) but its relationship with yield was weaker (r2 = 0.51–53*) and post-silking dry matter remobilisation was negatively related with the SG trait (r2 = 0.84**). Two additional experiments were carried out in 63 L pots by withholding irrigation in half of the pots after silking. The SG hybrid achieved lower root biomass at silking, a shallower root distribution and larger root growth in the post-silking period. Under drought conditions, stomatal conductance was lower in the SG hybrid but photosynthetic electron transport rate was higher. Higher post-silking dry matter assimilation in the SG hybrid was compensated for by higher dry matter remobilisation in the non-SG. Higher kernel number per plant in the non-SG hybrid with no ability to compensate for by higher kernel weight in the SG, resulted in slightly higher yields in the non-SG under drought. A water conservation strategy associated with a shallower root system could be linked to the SG trait, promoting faster water depletion at upper soil levels and reduced stomatal conductance at the leaf level but with no conclusive yield advantage.EEA PergaminoFil: Antonietta, M. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); ArgentinaFil: Maydup, M. L. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); ArgentinaFil: Cano, M. G. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); ArgentinaFil: Fanello, D. D. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); ArgentinaFil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; ArgentinaFil: Acciaresi, Horacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; ArgentinaFil: Guiamet, J. J. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); ArgentinaCSIRO Publishing2021-12-28T13:49:37Z2021-12-28T13:49:37Z2021-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/11005https://www.publish.csiro.au/FP/FP211381445-44081445-4416 (online)https://doi.org/10.1071/FP21138Functional Plant Biology 48 (11) : 1124-1138. (2021)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-16T09:30:20Zoai:localhost:20.500.12123/11005instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:30:21.104INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
title Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
spellingShingle Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
Antonietta, Mariana
Maíz
Zea mays
Fotosíntesis
Absorción de Agua
Asimilación
Conductancia Estomática
Photosynthesis
Water Uptake
Assimilation
Stomatal Conductance
Maize
Biomasa Radicular
title_short Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
title_full Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
title_fullStr Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
title_full_unstemmed Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
title_sort Yield determinants, root distribution and soil water uptake in maize (Zea mays) hybrids differing in canopy senescence under post-silking drought
dc.creator.none.fl_str_mv Antonietta, Mariana
Maydup, María Luján
Cano, María Gabriela
Fanello, Diego Darío
Acciaresi, Horacio Abel
Guiamet, Juan José
author Antonietta, Mariana
author_facet Antonietta, Mariana
Maydup, María Luján
Cano, María Gabriela
Fanello, Diego Darío
Acciaresi, Horacio Abel
Guiamet, Juan José
author_role author
author2 Maydup, María Luján
Cano, María Gabriela
Fanello, Diego Darío
Acciaresi, Horacio Abel
Guiamet, Juan José
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Maíz
Zea mays
Fotosíntesis
Absorción de Agua
Asimilación
Conductancia Estomática
Photosynthesis
Water Uptake
Assimilation
Stomatal Conductance
Maize
Biomasa Radicular
topic Maíz
Zea mays
Fotosíntesis
Absorción de Agua
Asimilación
Conductancia Estomática
Photosynthesis
Water Uptake
Assimilation
Stomatal Conductance
Maize
Biomasa Radicular
dc.description.none.fl_txt_mv Delayed canopy senescence or ‘stay-green’ (SG) trait in maize (Zea mays L.) could improve drought tolerance. Two field trials comparing four to six maize hybrids with different senescence rate were carried out at Buenos Aires, Argentina, varying water availability during the reproductive period. Green leaf area at maturity was related to kernel weight (r2 = 0.94***) but its relationship with yield was weaker (r2 = 0.51–53*) and post-silking dry matter remobilisation was negatively related with the SG trait (r2 = 0.84**). Two additional experiments were carried out in 63 L pots by withholding irrigation in half of the pots after silking. The SG hybrid achieved lower root biomass at silking, a shallower root distribution and larger root growth in the post-silking period. Under drought conditions, stomatal conductance was lower in the SG hybrid but photosynthetic electron transport rate was higher. Higher post-silking dry matter assimilation in the SG hybrid was compensated for by higher dry matter remobilisation in the non-SG. Higher kernel number per plant in the non-SG hybrid with no ability to compensate for by higher kernel weight in the SG, resulted in slightly higher yields in the non-SG under drought. A water conservation strategy associated with a shallower root system could be linked to the SG trait, promoting faster water depletion at upper soil levels and reduced stomatal conductance at the leaf level but with no conclusive yield advantage.
EEA Pergamino
Fil: Antonietta, M. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Maydup, M. L. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Cano, M. G. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Fanello, D. D. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
Fil: Acciaresi, Horacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Malezas; Argentina
Fil: Acciaresi, Horacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
Fil: Guiamet, J. J. Universidad Nacional de La Plata – CONICET. Instituto de Fisiología Vegetal (INFIVE); Argentina
description Delayed canopy senescence or ‘stay-green’ (SG) trait in maize (Zea mays L.) could improve drought tolerance. Two field trials comparing four to six maize hybrids with different senescence rate were carried out at Buenos Aires, Argentina, varying water availability during the reproductive period. Green leaf area at maturity was related to kernel weight (r2 = 0.94***) but its relationship with yield was weaker (r2 = 0.51–53*) and post-silking dry matter remobilisation was negatively related with the SG trait (r2 = 0.84**). Two additional experiments were carried out in 63 L pots by withholding irrigation in half of the pots after silking. The SG hybrid achieved lower root biomass at silking, a shallower root distribution and larger root growth in the post-silking period. Under drought conditions, stomatal conductance was lower in the SG hybrid but photosynthetic electron transport rate was higher. Higher post-silking dry matter assimilation in the SG hybrid was compensated for by higher dry matter remobilisation in the non-SG. Higher kernel number per plant in the non-SG hybrid with no ability to compensate for by higher kernel weight in the SG, resulted in slightly higher yields in the non-SG under drought. A water conservation strategy associated with a shallower root system could be linked to the SG trait, promoting faster water depletion at upper soil levels and reduced stomatal conductance at the leaf level but with no conclusive yield advantage.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-28T13:49:37Z
2021-12-28T13:49:37Z
2021-05
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/20.500.12123/11005
https://www.publish.csiro.au/FP/FP21138
1445-4408
1445-4416 (online)
https://doi.org/10.1071/FP21138
url http://hdl.handle.net/20.500.12123/11005
https://www.publish.csiro.au/FP/FP21138
https://doi.org/10.1071/FP21138
identifier_str_mv 1445-4408
1445-4416 (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 CSIRO Publishing
publisher.none.fl_str_mv CSIRO Publishing
dc.source.none.fl_str_mv Functional Plant Biology 48 (11) : 1124-1138. (2021)
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 12.712165

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