Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities

Autores
Travaglia, Claudia Noemi; Espósito, Gabriel Pablo; Balboa, Guillermo Raul; Masciarelli, Oscar Alberto; Fortuna, Julieta Belén; Cardozo, Paula Gabriela; Reinoso, Herminda Elmira
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study evaluated the physiological and anatomical traits of two contrasting maize hybrids subjected to high density sowing in order to explain yield stability through yield component analysis and the relation between the grain yield capacities per plant according to individual growth. Experiment factors were two commercially important maize hybrids: DK190MGRR2 and DK670MG, which behave differently under stress, and two levels of plant density: 7 and 11 plant/m2 high and recommended density to favour the conditions of water stress respectively. The experiment was carried out in the west of Argentina under rainfed conditions and five replications. Physiological parameters (pigments and endogenous content of phytohormones, injury of cell membranes, yield components) and anatomical parameters (stomatal bevhaviour, foliar and peduncles anatomy, xylem and phloem area in vascular bundles) were analyzed. In this study, both maize hybrids showed a differential response to both sowing densities. The DK670 showed an increased yield (24 and 10 % at 7 and 11 plant/m2 , respectively) due to enhanced individual yield components. This hybrid was differentiated by a higher stomatal density (7±1 in the abaxial side) and pigment amount (20%, mainly chl a) which led to a better photosynthetic ability. In addition, this hybrid showed the capacity to compensate damages derived from stress, mesophyll leaf thickness and closer bundles associated with tolerance to drought, and abundance in endogenous phytohormones to cope with stress. The description of these characteristics in response to different plant densities is novel results, especially those related to anatomical analysis under the different treatments. This research shows that the ability of hybrids to take advantage of abundance of resources at lower populations is an imperative need for over-seasonal potential yield accomplishment. This could help select more appropriate management practices and contribute to production areas.
Fil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Espósito, Gabriel Pablo. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina
Fil: Balboa, Guillermo Raul. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina
Fil: Masciarelli, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Fortuna, Julieta Belén. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Cardozo, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Reinoso, Herminda Elmira. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Materia
Zea Mays
Sowing Density
Maize Hybrids
Yield
Morphophysiological Responses
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/43032
Acceder
id CONICETDig_0c8afcaeb2cc14dc3c9693dad8bf6002
oai_identifier_str oai:ri.conicet.gov.ar:11336/43032
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densitiesTravaglia, Claudia NoemiEspósito, Gabriel PabloBalboa, Guillermo RaulMasciarelli, Oscar AlbertoFortuna, Julieta BelénCardozo, Paula GabrielaReinoso, Herminda ElmiraZea MaysSowing DensityMaize HybridsYieldMorphophysiological Responseshttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4This study evaluated the physiological and anatomical traits of two contrasting maize hybrids subjected to high density sowing in order to explain yield stability through yield component analysis and the relation between the grain yield capacities per plant according to individual growth. Experiment factors were two commercially important maize hybrids: DK190MGRR2 and DK670MG, which behave differently under stress, and two levels of plant density: 7 and 11 plant/m2 high and recommended density to favour the conditions of water stress respectively. The experiment was carried out in the west of Argentina under rainfed conditions and five replications. Physiological parameters (pigments and endogenous content of phytohormones, injury of cell membranes, yield components) and anatomical parameters (stomatal bevhaviour, foliar and peduncles anatomy, xylem and phloem area in vascular bundles) were analyzed. In this study, both maize hybrids showed a differential response to both sowing densities. The DK670 showed an increased yield (24 and 10 % at 7 and 11 plant/m2 , respectively) due to enhanced individual yield components. This hybrid was differentiated by a higher stomatal density (7±1 in the abaxial side) and pigment amount (20%, mainly chl a) which led to a better photosynthetic ability. In addition, this hybrid showed the capacity to compensate damages derived from stress, mesophyll leaf thickness and closer bundles associated with tolerance to drought, and abundance in endogenous phytohormones to cope with stress. The description of these characteristics in response to different plant densities is novel results, especially those related to anatomical analysis under the different treatments. This research shows that the ability of hybrids to take advantage of abundance of resources at lower populations is an imperative need for over-seasonal potential yield accomplishment. This could help select more appropriate management practices and contribute to production areas.Fil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaFil: Espósito, Gabriel Pablo. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; ArgentinaFil: Balboa, Guillermo Raul. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; ArgentinaFil: Masciarelli, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaFil: Fortuna, Julieta Belén. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaFil: Cardozo, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaFil: Reinoso, Herminda Elmira. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; ArgentinaSouthern Cross Publishing2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43032Travaglia, Claudia Noemi; Espósito, Gabriel Pablo; Balboa, Guillermo Raul; Masciarelli, Oscar Alberto; Fortuna, Julieta Belén; et al.; Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities; Southern Cross Publishing; Australian Journal of Crop Science; 8; 9; 9-2014; 1311-13181835-26931835-2707CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.cropj.com/september2014.htmlinfo:eu-repo/semantics/altIdentifier/url/http://www.cropj.com/travaglia_8_9_2014_1311_1318.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:09:11Zoai:ri.conicet.gov.ar:11336/43032instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:09:12.269CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
title Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
spellingShingle Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
Travaglia, Claudia Noemi
Zea Mays
Sowing Density
Maize Hybrids
Yield
Morphophysiological Responses
title_short Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
title_full Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
title_fullStr Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
title_full_unstemmed Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
title_sort Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities
dc.creator.none.fl_str_mv Travaglia, Claudia Noemi
Espósito, Gabriel Pablo
Balboa, Guillermo Raul
Masciarelli, Oscar Alberto
Fortuna, Julieta Belén
Cardozo, Paula Gabriela
Reinoso, Herminda Elmira
author Travaglia, Claudia Noemi
author_facet Travaglia, Claudia Noemi
Espósito, Gabriel Pablo
Balboa, Guillermo Raul
Masciarelli, Oscar Alberto
Fortuna, Julieta Belén
Cardozo, Paula Gabriela
Reinoso, Herminda Elmira
author_role author
author2 Espósito, Gabriel Pablo
Balboa, Guillermo Raul
Masciarelli, Oscar Alberto
Fortuna, Julieta Belén
Cardozo, Paula Gabriela
Reinoso, Herminda Elmira
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Zea Mays
Sowing Density
Maize Hybrids
Yield
Morphophysiological Responses
topic Zea Mays
Sowing Density
Maize Hybrids
Yield
Morphophysiological Responses
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv This study evaluated the physiological and anatomical traits of two contrasting maize hybrids subjected to high density sowing in order to explain yield stability through yield component analysis and the relation between the grain yield capacities per plant according to individual growth. Experiment factors were two commercially important maize hybrids: DK190MGRR2 and DK670MG, which behave differently under stress, and two levels of plant density: 7 and 11 plant/m2 high and recommended density to favour the conditions of water stress respectively. The experiment was carried out in the west of Argentina under rainfed conditions and five replications. Physiological parameters (pigments and endogenous content of phytohormones, injury of cell membranes, yield components) and anatomical parameters (stomatal bevhaviour, foliar and peduncles anatomy, xylem and phloem area in vascular bundles) were analyzed. In this study, both maize hybrids showed a differential response to both sowing densities. The DK670 showed an increased yield (24 and 10 % at 7 and 11 plant/m2 , respectively) due to enhanced individual yield components. This hybrid was differentiated by a higher stomatal density (7±1 in the abaxial side) and pigment amount (20%, mainly chl a) which led to a better photosynthetic ability. In addition, this hybrid showed the capacity to compensate damages derived from stress, mesophyll leaf thickness and closer bundles associated with tolerance to drought, and abundance in endogenous phytohormones to cope with stress. The description of these characteristics in response to different plant densities is novel results, especially those related to anatomical analysis under the different treatments. This research shows that the ability of hybrids to take advantage of abundance of resources at lower populations is an imperative need for over-seasonal potential yield accomplishment. This could help select more appropriate management practices and contribute to production areas.
Fil: Travaglia, Claudia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Espósito, Gabriel Pablo. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina
Fil: Balboa, Guillermo Raul. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria; Argentina
Fil: Masciarelli, Oscar Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Fortuna, Julieta Belén. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Cardozo, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
Fil: Reinoso, Herminda Elmira. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina
description This study evaluated the physiological and anatomical traits of two contrasting maize hybrids subjected to high density sowing in order to explain yield stability through yield component analysis and the relation between the grain yield capacities per plant according to individual growth. Experiment factors were two commercially important maize hybrids: DK190MGRR2 and DK670MG, which behave differently under stress, and two levels of plant density: 7 and 11 plant/m2 high and recommended density to favour the conditions of water stress respectively. The experiment was carried out in the west of Argentina under rainfed conditions and five replications. Physiological parameters (pigments and endogenous content of phytohormones, injury of cell membranes, yield components) and anatomical parameters (stomatal bevhaviour, foliar and peduncles anatomy, xylem and phloem area in vascular bundles) were analyzed. In this study, both maize hybrids showed a differential response to both sowing densities. The DK670 showed an increased yield (24 and 10 % at 7 and 11 plant/m2 , respectively) due to enhanced individual yield components. This hybrid was differentiated by a higher stomatal density (7±1 in the abaxial side) and pigment amount (20%, mainly chl a) which led to a better photosynthetic ability. In addition, this hybrid showed the capacity to compensate damages derived from stress, mesophyll leaf thickness and closer bundles associated with tolerance to drought, and abundance in endogenous phytohormones to cope with stress. The description of these characteristics in response to different plant densities is novel results, especially those related to anatomical analysis under the different treatments. This research shows that the ability of hybrids to take advantage of abundance of resources at lower populations is an imperative need for over-seasonal potential yield accomplishment. This could help select more appropriate management practices and contribute to production areas.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/43032
Travaglia, Claudia Noemi; Espósito, Gabriel Pablo; Balboa, Guillermo Raul; Masciarelli, Oscar Alberto; Fortuna, Julieta Belén; et al.; Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities; Southern Cross Publishing; Australian Journal of Crop Science; 8; 9; 9-2014; 1311-1318
1835-2693
1835-2707
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43032
identifier_str_mv Travaglia, Claudia Noemi; Espósito, Gabriel Pablo; Balboa, Guillermo Raul; Masciarelli, Oscar Alberto; Fortuna, Julieta Belén; et al.; Morphophysiological behaviour and performance of modern maize hybrids grown at different plant densities; Southern Cross Publishing; Australian Journal of Crop Science; 8; 9; 9-2014; 1311-1318
1835-2693
1835-2707
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.cropj.com/september2014.html
info:eu-repo/semantics/altIdentifier/url/http://www.cropj.com/travaglia_8_9_2014_1311_1318.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Southern Cross Publishing
publisher.none.fl_str_mv Southern Cross Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083239622475776
score 13.22299

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