Defoliation affects soybean yield depending on time and level of light interception reduction

Autores
Gregorutti, Viviana Carolina; Caviglia, Octavio Pedro; Saluso, Adriana
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Light interception during the critical period in soybean may be a better index of the injury level by defoliation than the insect population or the percentage of defoliation. Our aim was to simulate the effects of time and levels of defoliation on soybean seed yield, its numerical components and light interception during the critical period. The study was conducted in Paraná (31.5ºS; 60.3ºW), Argentina. We evaluated a combination of defoliation levels (0, 33, 66 and 100%) and two times of defoliation during soybean development (pod initiation and beginning of seed filling, i.e. R3 and R5, respectively). We measured radiation interception during the linear seed filling period (R5.5), seed yield and its components. Total defoliation performed at R3 reduced seed yield more than that performed at R5 (P<0.0001) (90% and 21% respectively, as compared to controls). Similarly, total defoliation performed at R3 reduced seed number by 85%, whereas that performed at R5 reduced seed number only by 3%, as compared to controls (P<0.0001). Seed yield and its components were significantly reduced when defoliation was applied at R3, because the radiation interception at R5.5 was reduced (P<0.001). Irrespective of the time of defoliation, PAR interception during the critical period (R5.5) was reduced only by total defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful platform for the development of economic injury levels (EILs) based on light interception during the critical period.
Fil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina
Fil: Caviglia, Octavio Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Materia
ECONOMIC INJURY LEVEL
CRITICAL PERIOD
DEFOLIATING INSECTS
SOYBEAN ECOPHYSIOLOGY
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:11336/196794
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/196794
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Defoliation affects soybean yield depending on time and level of light interception reductionGregorutti, Viviana CarolinaCaviglia, Octavio PedroSaluso, AdrianaECONOMIC INJURY LEVELCRITICAL PERIODDEFOLIATING INSECTSSOYBEAN ECOPHYSIOLOGYhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Light interception during the critical period in soybean may be a better index of the injury level by defoliation than the insect population or the percentage of defoliation. Our aim was to simulate the effects of time and levels of defoliation on soybean seed yield, its numerical components and light interception during the critical period. The study was conducted in Paraná (31.5ºS; 60.3ºW), Argentina. We evaluated a combination of defoliation levels (0, 33, 66 and 100%) and two times of defoliation during soybean development (pod initiation and beginning of seed filling, i.e. R3 and R5, respectively). We measured radiation interception during the linear seed filling period (R5.5), seed yield and its components. Total defoliation performed at R3 reduced seed yield more than that performed at R5 (P<0.0001) (90% and 21% respectively, as compared to controls). Similarly, total defoliation performed at R3 reduced seed number by 85%, whereas that performed at R5 reduced seed number only by 3%, as compared to controls (P<0.0001). Seed yield and its components were significantly reduced when defoliation was applied at R3, because the radiation interception at R5.5 was reduced (P<0.001). Irrespective of the time of defoliation, PAR interception during the critical period (R5.5) was reduced only by total defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful platform for the development of economic injury levels (EILs) based on light interception during the critical period.Fil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; ArgentinaFil: Caviglia, Octavio Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaSouthern Cross Publishing2012-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/196794Gregorutti, Viviana Carolina; Caviglia, Octavio Pedro; Saluso, Adriana; Defoliation affects soybean yield depending on time and level of light interception reduction; Southern Cross Publishing; Australian Journal of Crop Science; 6; 7; 7-2012; 1166-11711835-26931835-2707CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.cropj.com/july2012.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:29Zoai:ri.conicet.gov.ar:11336/196794instacron: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:34982025-09-29 09:36:29.999CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Defoliation affects soybean yield depending on time and level of light interception reduction
title Defoliation affects soybean yield depending on time and level of light interception reduction
spellingShingle Defoliation affects soybean yield depending on time and level of light interception reduction
Gregorutti, Viviana Carolina
ECONOMIC INJURY LEVEL
CRITICAL PERIOD
DEFOLIATING INSECTS
SOYBEAN ECOPHYSIOLOGY
title_short Defoliation affects soybean yield depending on time and level of light interception reduction
title_full Defoliation affects soybean yield depending on time and level of light interception reduction
title_fullStr Defoliation affects soybean yield depending on time and level of light interception reduction
title_full_unstemmed Defoliation affects soybean yield depending on time and level of light interception reduction
title_sort Defoliation affects soybean yield depending on time and level of light interception reduction
dc.creator.none.fl_str_mv Gregorutti, Viviana Carolina
Caviglia, Octavio Pedro
Saluso, Adriana
author Gregorutti, Viviana Carolina
author_facet Gregorutti, Viviana Carolina
Caviglia, Octavio Pedro
Saluso, Adriana
author_role author
author2 Caviglia, Octavio Pedro
Saluso, Adriana
author2_role author
author
dc.subject.none.fl_str_mv ECONOMIC INJURY LEVEL
CRITICAL PERIOD
DEFOLIATING INSECTS
SOYBEAN ECOPHYSIOLOGY
topic ECONOMIC INJURY LEVEL
CRITICAL PERIOD
DEFOLIATING INSECTS
SOYBEAN ECOPHYSIOLOGY
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Light interception during the critical period in soybean may be a better index of the injury level by defoliation than the insect population or the percentage of defoliation. Our aim was to simulate the effects of time and levels of defoliation on soybean seed yield, its numerical components and light interception during the critical period. The study was conducted in Paraná (31.5ºS; 60.3ºW), Argentina. We evaluated a combination of defoliation levels (0, 33, 66 and 100%) and two times of defoliation during soybean development (pod initiation and beginning of seed filling, i.e. R3 and R5, respectively). We measured radiation interception during the linear seed filling period (R5.5), seed yield and its components. Total defoliation performed at R3 reduced seed yield more than that performed at R5 (P<0.0001) (90% and 21% respectively, as compared to controls). Similarly, total defoliation performed at R3 reduced seed number by 85%, whereas that performed at R5 reduced seed number only by 3%, as compared to controls (P<0.0001). Seed yield and its components were significantly reduced when defoliation was applied at R3, because the radiation interception at R5.5 was reduced (P<0.001). Irrespective of the time of defoliation, PAR interception during the critical period (R5.5) was reduced only by total defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful platform for the development of economic injury levels (EILs) based on light interception during the critical period.
Fil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina
Fil: Caviglia, Octavio Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
description Light interception during the critical period in soybean may be a better index of the injury level by defoliation than the insect population or the percentage of defoliation. Our aim was to simulate the effects of time and levels of defoliation on soybean seed yield, its numerical components and light interception during the critical period. The study was conducted in Paraná (31.5ºS; 60.3ºW), Argentina. We evaluated a combination of defoliation levels (0, 33, 66 and 100%) and two times of defoliation during soybean development (pod initiation and beginning of seed filling, i.e. R3 and R5, respectively). We measured radiation interception during the linear seed filling period (R5.5), seed yield and its components. Total defoliation performed at R3 reduced seed yield more than that performed at R5 (P<0.0001) (90% and 21% respectively, as compared to controls). Similarly, total defoliation performed at R3 reduced seed number by 85%, whereas that performed at R5 reduced seed number only by 3%, as compared to controls (P<0.0001). Seed yield and its components were significantly reduced when defoliation was applied at R3, because the radiation interception at R5.5 was reduced (P<0.001). Irrespective of the time of defoliation, PAR interception during the critical period (R5.5) was reduced only by total defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful platform for the development of economic injury levels (EILs) based on light interception during the critical period.
publishDate 2012
dc.date.none.fl_str_mv 2012-07
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/11336/196794
Gregorutti, Viviana Carolina; Caviglia, Octavio Pedro; Saluso, Adriana; Defoliation affects soybean yield depending on time and level of light interception reduction; Southern Cross Publishing; Australian Journal of Crop Science; 6; 7; 7-2012; 1166-1171
1835-2693
1835-2707
CONICET Digital
CONICET
url http://hdl.handle.net/11336/196794
identifier_str_mv Gregorutti, Viviana Carolina; Caviglia, Octavio Pedro; Saluso, Adriana; Defoliation affects soybean yield depending on time and level of light interception reduction; Southern Cross Publishing; Australian Journal of Crop Science; 6; 7; 7-2012; 1166-1171
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/july2012.html
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
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score 13.070432

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