Defoliation affects soybean yield depending on time and level of light interception reduction
- Autores
- Gregorutti, Viviana Carolina; Caviglia, Octavio; Saluso, Adriana
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Light interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or 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 growth periods. 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 the effects of radiation interception on seed yield and its components during the linear seed filling period (R5.5). The results showed that the total defoliation performed at R3 significantly reduced the seed yield compared to defoliation at R5 (P<0.0001) (90% and 21% yield reduction, 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). The photosynthetically active radiation (PAR) interception during the critical period (R5.5) was reduced only by total defoliation irrespective to the time of defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful base for the development of economic injury levels (EILs) based on light interception during the growth critical periods.
EEA Paraná
Fil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina.
Fil: Caviglia, Octavio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná. Grupo Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina
Fil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina - Fuente
- Australian Journal of Crop Science 6 (7) : 1166-1171 (2012)
- Materia
-
Soja
Rendimiento
Defoliación
Luz
Crecimiento
Soybeans
Yields
Defoliation
Light
Growth - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/7048
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Defoliation affects soybean yield depending on time and level of light interception reductionGregorutti, Viviana CarolinaCaviglia, OctavioSaluso, AdrianaSojaRendimientoDefoliaciónLuzCrecimientoSoybeansYieldsDefoliationLightGrowthLight interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or 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 growth periods. 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 the effects of radiation interception on seed yield and its components during the linear seed filling period (R5.5). The results showed that the total defoliation performed at R3 significantly reduced the seed yield compared to defoliation at R5 (P<0.0001) (90% and 21% yield reduction, 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). The photosynthetically active radiation (PAR) interception during the critical period (R5.5) was reduced only by total defoliation irrespective to the time of defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful base for the development of economic injury levels (EILs) based on light interception during the growth critical periods.EEA ParanáFil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina.Fil: Caviglia, Octavio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná. Grupo Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaSouthern Cross Publishing2020-04-06T17:51:35Z2020-04-06T17:51:35Z2012-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/7048http://www.cropj.com/gregorutti_6_7_2012_1166_1171.pdf1835-26931835-2707Australian Journal of Crop Science 6 (7) : 1166-1171 (2012)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:44:55Zoai:localhost:20.500.12123/7048instacron: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 13:44:55.397INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
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 Soja Rendimiento Defoliación Luz Crecimiento Soybeans Yields Defoliation Light Growth |
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 Saluso, Adriana |
author |
Gregorutti, Viviana Carolina |
author_facet |
Gregorutti, Viviana Carolina Caviglia, Octavio Saluso, Adriana |
author_role |
author |
author2 |
Caviglia, Octavio Saluso, Adriana |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Soja Rendimiento Defoliación Luz Crecimiento Soybeans Yields Defoliation Light Growth |
topic |
Soja Rendimiento Defoliación Luz Crecimiento Soybeans Yields Defoliation Light Growth |
dc.description.none.fl_txt_mv |
Light interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or 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 growth periods. 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 the effects of radiation interception on seed yield and its components during the linear seed filling period (R5.5). The results showed that the total defoliation performed at R3 significantly reduced the seed yield compared to defoliation at R5 (P<0.0001) (90% and 21% yield reduction, 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). The photosynthetically active radiation (PAR) interception during the critical period (R5.5) was reduced only by total defoliation irrespective to the time of defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful base for the development of economic injury levels (EILs) based on light interception during the growth critical periods. EEA Paraná Fil: Gregorutti, Viviana Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Fil: Caviglia, Octavio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná. Grupo Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina Fil: Saluso, Adriana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; Argentina |
description |
Light interception (mainly due to defoliation) during the critical growth periods of soybean may be a suitable index for calculating the economic injury level (ELI) rather than measuring the insect population or 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 growth periods. 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 the effects of radiation interception on seed yield and its components during the linear seed filling period (R5.5). The results showed that the total defoliation performed at R3 significantly reduced the seed yield compared to defoliation at R5 (P<0.0001) (90% and 21% yield reduction, 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). The photosynthetically active radiation (PAR) interception during the critical period (R5.5) was reduced only by total defoliation irrespective to the time of defoliation, evidencing the high vegetative plasticity of soybean. Our results provide a useful base for the development of economic injury levels (EILs) based on light interception during the growth critical periods. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07 2020-04-06T17:51:35Z 2020-04-06T17:51:35Z |
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/20.500.12123/7048 http://www.cropj.com/gregorutti_6_7_2012_1166_1171.pdf 1835-2693 1835-2707 |
url |
http://hdl.handle.net/20.500.12123/7048 http://www.cropj.com/gregorutti_6_7_2012_1166_1171.pdf |
identifier_str_mv |
1835-2693 1835-2707 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
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 |
Australian Journal of Crop Science 6 (7) : 1166-1171 (2012) 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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1844619143236550656 |
score |
12.559606 |