Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement

Autores
Anuch Tiranti, Juan Valentín; Curti, Ramiro Nestor; Acreche, Martin Moises
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chia (Salvia hispanica L.) is a promising crop valued as a sustainable source of omega-3. However, chia yield and quality are reduced because of weed competition and the lack of registered herbicides. This study evaluated how chia spatial arrangement suppresses weed growth and provided management options for this crop. The performance of chia plants was assessed over three growing seasons in field experiments using a factorial design that considered spatial arrangement (narrow and wide), weed management (control without weeds, soil bank brassica (Brassica rapa L.), and sown brassica), and cover crop (with or without a rye (Secale cereale L.) cover crop during chia fallow). Chia and brassica are not complementary, leading to resource competition (relative yield total around 1) and negative effects on each other. A significant decrease in chia grain yield of 0.9% per unit increase in the percentage of weeds in total biomass was observed. As chia had a competitive advantage over brassica, the grain yield reduction was ameliorated with a narrow spatial arrangement. Narrow spatial arrangement promotes faster canopy closure during the early growth stages, decreasing light penetration and suppressing weed growth. The high extinction coefficient of chia (0.91) and the low critical LAI (3.3) contributed to this light interception behavior. Accordingly, to maximize chia productivity and profitability, a narrow spatial arrangement is an effective management strategy to suppress weeds. This study contributes valuable insights into chia-weed interactions and emphasizes the importance of sustainable crop management practices.
EEA Salta
Fil: Anuch Tiranti, Juan Valentín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Anuch Tiranti, Juan Valentín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Laboratorio de Investigaciones Botánicas; Argentina
Fil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Escuela de Agronomía. Laboratorio de Investigaciones Botánicas; Argentina
Fil: Acreche, Martin Moises. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Acreche, Martin Moises. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fuente
Crop Protection 187 : 106973. (January 2025)
Materia
Salvia hispanica
Chia Seeds
Weeds
Brassica
Yields
Sustainability
Semilla de Chía
Malezas
Rendimiento
Sostenibilidad
Chia
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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oai_identifier_str oai:localhost:20.500.12123/21477
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spelling Competitiveness of chia against brassica weeds improves through a narrow spatial arrangementAnuch Tiranti, Juan ValentínCurti, Ramiro NestorAcreche, Martin MoisesSalvia hispanicaChia SeedsWeedsBrassicaYieldsSustainabilitySemilla de ChíaMalezasRendimientoSostenibilidadChiaChia (Salvia hispanica L.) is a promising crop valued as a sustainable source of omega-3. However, chia yield and quality are reduced because of weed competition and the lack of registered herbicides. This study evaluated how chia spatial arrangement suppresses weed growth and provided management options for this crop. The performance of chia plants was assessed over three growing seasons in field experiments using a factorial design that considered spatial arrangement (narrow and wide), weed management (control without weeds, soil bank brassica (Brassica rapa L.), and sown brassica), and cover crop (with or without a rye (Secale cereale L.) cover crop during chia fallow). Chia and brassica are not complementary, leading to resource competition (relative yield total around 1) and negative effects on each other. A significant decrease in chia grain yield of 0.9% per unit increase in the percentage of weeds in total biomass was observed. As chia had a competitive advantage over brassica, the grain yield reduction was ameliorated with a narrow spatial arrangement. Narrow spatial arrangement promotes faster canopy closure during the early growth stages, decreasing light penetration and suppressing weed growth. The high extinction coefficient of chia (0.91) and the low critical LAI (3.3) contributed to this light interception behavior. Accordingly, to maximize chia productivity and profitability, a narrow spatial arrangement is an effective management strategy to suppress weeds. This study contributes valuable insights into chia-weed interactions and emphasizes the importance of sustainable crop management practices.EEA SaltaFil: Anuch Tiranti, Juan Valentín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Anuch Tiranti, Juan Valentín. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Laboratorio de Investigaciones Botánicas; ArgentinaFil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Escuela de Agronomía. Laboratorio de Investigaciones Botánicas; ArgentinaFil: Acreche, Martin Moises. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; ArgentinaFil: Acreche, Martin Moises. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2025-02-26T14:53:58Z2025-02-26T14:53:58Z2025-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21477https://www.sciencedirect.com/science/article/abs/pii/S02612194240040100261-21941873-6904https://doi.org/10.1016/j.cropro.2024.106973Crop Protection 187 : 106973. (January 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/PNIND-1108064/AR./Bases ecofisiológicas del mejoramiento y sistemas de cultivo.info:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-23T11:19:25Zoai:localhost:20.500.12123/21477instacron: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 11:19:25.441INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
title Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
spellingShingle Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
Anuch Tiranti, Juan Valentín
Salvia hispanica
Chia Seeds
Weeds
Brassica
Yields
Sustainability
Semilla de Chía
Malezas
Rendimiento
Sostenibilidad
Chia
title_short Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
title_full Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
title_fullStr Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
title_full_unstemmed Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
title_sort Competitiveness of chia against brassica weeds improves through a narrow spatial arrangement
dc.creator.none.fl_str_mv Anuch Tiranti, Juan Valentín
Curti, Ramiro Nestor
Acreche, Martin Moises
author Anuch Tiranti, Juan Valentín
author_facet Anuch Tiranti, Juan Valentín
Curti, Ramiro Nestor
Acreche, Martin Moises
author_role author
author2 Curti, Ramiro Nestor
Acreche, Martin Moises
author2_role author
author
dc.subject.none.fl_str_mv Salvia hispanica
Chia Seeds
Weeds
Brassica
Yields
Sustainability
Semilla de Chía
Malezas
Rendimiento
Sostenibilidad
Chia
topic Salvia hispanica
Chia Seeds
Weeds
Brassica
Yields
Sustainability
Semilla de Chía
Malezas
Rendimiento
Sostenibilidad
Chia
dc.description.none.fl_txt_mv Chia (Salvia hispanica L.) is a promising crop valued as a sustainable source of omega-3. However, chia yield and quality are reduced because of weed competition and the lack of registered herbicides. This study evaluated how chia spatial arrangement suppresses weed growth and provided management options for this crop. The performance of chia plants was assessed over three growing seasons in field experiments using a factorial design that considered spatial arrangement (narrow and wide), weed management (control without weeds, soil bank brassica (Brassica rapa L.), and sown brassica), and cover crop (with or without a rye (Secale cereale L.) cover crop during chia fallow). Chia and brassica are not complementary, leading to resource competition (relative yield total around 1) and negative effects on each other. A significant decrease in chia grain yield of 0.9% per unit increase in the percentage of weeds in total biomass was observed. As chia had a competitive advantage over brassica, the grain yield reduction was ameliorated with a narrow spatial arrangement. Narrow spatial arrangement promotes faster canopy closure during the early growth stages, decreasing light penetration and suppressing weed growth. The high extinction coefficient of chia (0.91) and the low critical LAI (3.3) contributed to this light interception behavior. Accordingly, to maximize chia productivity and profitability, a narrow spatial arrangement is an effective management strategy to suppress weeds. This study contributes valuable insights into chia-weed interactions and emphasizes the importance of sustainable crop management practices.
EEA Salta
Fil: Anuch Tiranti, Juan Valentín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Anuch Tiranti, Juan Valentín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Curti, Ramiro Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Laboratorio de Investigaciones Botánicas; Argentina
Fil: Curti, Ramiro Nestor. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Escuela de Agronomía. Laboratorio de Investigaciones Botánicas; Argentina
Fil: Acreche, Martin Moises. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina
Fil: Acreche, Martin Moises. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Chia (Salvia hispanica L.) is a promising crop valued as a sustainable source of omega-3. However, chia yield and quality are reduced because of weed competition and the lack of registered herbicides. This study evaluated how chia spatial arrangement suppresses weed growth and provided management options for this crop. The performance of chia plants was assessed over three growing seasons in field experiments using a factorial design that considered spatial arrangement (narrow and wide), weed management (control without weeds, soil bank brassica (Brassica rapa L.), and sown brassica), and cover crop (with or without a rye (Secale cereale L.) cover crop during chia fallow). Chia and brassica are not complementary, leading to resource competition (relative yield total around 1) and negative effects on each other. A significant decrease in chia grain yield of 0.9% per unit increase in the percentage of weeds in total biomass was observed. As chia had a competitive advantage over brassica, the grain yield reduction was ameliorated with a narrow spatial arrangement. Narrow spatial arrangement promotes faster canopy closure during the early growth stages, decreasing light penetration and suppressing weed growth. The high extinction coefficient of chia (0.91) and the low critical LAI (3.3) contributed to this light interception behavior. Accordingly, to maximize chia productivity and profitability, a narrow spatial arrangement is an effective management strategy to suppress weeds. This study contributes valuable insights into chia-weed interactions and emphasizes the importance of sustainable crop management practices.
publishDate 2025
dc.date.none.fl_str_mv 2025-02-26T14:53:58Z
2025-02-26T14:53:58Z
2025-01
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/20.500.12123/21477
https://www.sciencedirect.com/science/article/abs/pii/S0261219424004010
0261-2194
1873-6904
https://doi.org/10.1016/j.cropro.2024.106973
url http://hdl.handle.net/20.500.12123/21477
https://www.sciencedirect.com/science/article/abs/pii/S0261219424004010
https://doi.org/10.1016/j.cropro.2024.106973
identifier_str_mv 0261-2194
1873-6904
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/PNIND-1108064/AR./Bases ecofisiológicas del mejoramiento y sistemas de cultivo.
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
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 restrictedAccess
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 Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Crop Protection 187 : 106973. (January 2025)
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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