Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection

Autores
Ramirez, Camila; Umbriago, Luciana; Lifschitz, Mauro Ezequiel; Tomas, Maria Andrea
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Thirteen accessions from a collection of Panicum coloratum var. coloratum in Argentina were evaluated under hypoxia, salinity, and combined salinity-hypoxia to assess variability in stress tolerance in a controlled hydroponic experiment. Biomass production, relative growth rate, root:shoot ratio, relative water content, and tolerance indices were evaluated. Salinity and combined stress caused the greatest reductions in plant growth, whereas hypoxia alone had smaller effects. Relative growth rate decreased by 4.4% under hypoxia, 14.1% under salinity, and 16.9% under combined stress compared with the control. Root:shoot ratio increased under all stress treatments, particularly under hypoxia and combined stress, indicating shifts in biomass allocation. Significant differences among accessions were detected for root biomass, relative growth rate, tolerance indices, and stress interaction responses. Interaction analysis revealed additive responses in 46% of the accessions, synergistic responses in 38%, and antagonistic responses in 15%. The observed variability in stress interaction patterns suggests distinct tolerance mechanisms. No significant association between relative growth rate and stress tolerance was apparent. Overall, these results demonstrate intraspecific variation and provide information for breeding programmes aimed at improving forage adaptation to saline and waterlogged environments.
EEA Rafaela
Fil: Ramirez, Camila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Ramirez, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Umbriago, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Umbriago, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Lifschitz, Mauro Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Lifschitz, Mauro Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina; Argentina
Fil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fuente
Genetic Resources and Crop Evolution 73 (6) : article number 245. (August 2026)
Materia
Germoplasma
Variación Intraespecífica
Tolerancia a la Sal
Hipoxia
Forrajes
Estrés Osmótico
Argentina
Germplasm
Panicum coloratum
Intraspecific Variation
Salt Tolerance
Hypoxia
Forage
Osmotic Stress
Estrés Salino
Panicum coloratum var. coloratum
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
oai:localhost:20.500.12123/27678
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oai_identifier_str oai:localhost:20.500.12123/27678
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collectionRamirez, CamilaUmbriago, LucianaLifschitz, Mauro EzequielTomas, Maria AndreaGermoplasmaVariación IntraespecíficaTolerancia a la SalHipoxiaForrajesEstrés OsmóticoArgentinaGermplasmPanicum coloratumIntraspecific VariationSalt ToleranceHypoxiaForageOsmotic StressEstrés SalinoPanicum coloratum var. coloratumThirteen accessions from a collection of Panicum coloratum var. coloratum in Argentina were evaluated under hypoxia, salinity, and combined salinity-hypoxia to assess variability in stress tolerance in a controlled hydroponic experiment. Biomass production, relative growth rate, root:shoot ratio, relative water content, and tolerance indices were evaluated. Salinity and combined stress caused the greatest reductions in plant growth, whereas hypoxia alone had smaller effects. Relative growth rate decreased by 4.4% under hypoxia, 14.1% under salinity, and 16.9% under combined stress compared with the control. Root:shoot ratio increased under all stress treatments, particularly under hypoxia and combined stress, indicating shifts in biomass allocation. Significant differences among accessions were detected for root biomass, relative growth rate, tolerance indices, and stress interaction responses. Interaction analysis revealed additive responses in 46% of the accessions, synergistic responses in 38%, and antagonistic responses in 15%. The observed variability in stress interaction patterns suggests distinct tolerance mechanisms. No significant association between relative growth rate and stress tolerance was apparent. Overall, these results demonstrate intraspecific variation and provide information for breeding programmes aimed at improving forage adaptation to saline and waterlogged environments.EEA RafaelaFil: Ramirez, Camila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Ramirez, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Umbriago, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Umbriago, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Lifschitz, Mauro Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Lifschitz, Mauro Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina; ArgentinaFil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaSpringer2026-09-07T14:33:19Z2026-09-07T14:33:19Z2026-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27678https://link.springer.com/article/10.1007/s10722-026-02879-50925-98641573-5109https://doi.org/10.1007/s10722-026-02879-5Genetic Resources and Crop Evolution 73 (6) : article number 245. (August 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2023-PD-L01-I100, Genética en forrajeras para ambientes y mercados desafiantesinfo: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)2026-09-24T11:43:47Zoai:localhost:20.500.12123/27678instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:48.459INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
title Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
spellingShingle Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
Ramirez, Camila
Germoplasma
Variación Intraespecífica
Tolerancia a la Sal
Hipoxia
Forrajes
Estrés Osmótico
Argentina
Germplasm
Panicum coloratum
Intraspecific Variation
Salt Tolerance
Hypoxia
Forage
Osmotic Stress
Estrés Salino
Panicum coloratum var. coloratum
title_short Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
title_full Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
title_fullStr Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
title_full_unstemmed Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
title_sort Intraspecific variation in tolerance to salinity, hypoxia and their combination in a Panicum coloratum var. coloratum germplasm collection
dc.creator.none.fl_str_mv Ramirez, Camila
Umbriago, Luciana
Lifschitz, Mauro Ezequiel
Tomas, Maria Andrea
author Ramirez, Camila
author_facet Ramirez, Camila
Umbriago, Luciana
Lifschitz, Mauro Ezequiel
Tomas, Maria Andrea
author_role author
author2 Umbriago, Luciana
Lifschitz, Mauro Ezequiel
Tomas, Maria Andrea
author2_role author
author
author
dc.subject.none.fl_str_mv Germoplasma
Variación Intraespecífica
Tolerancia a la Sal
Hipoxia
Forrajes
Estrés Osmótico
Argentina
Germplasm
Panicum coloratum
Intraspecific Variation
Salt Tolerance
Hypoxia
Forage
Osmotic Stress
Estrés Salino
Panicum coloratum var. coloratum
topic Germoplasma
Variación Intraespecífica
Tolerancia a la Sal
Hipoxia
Forrajes
Estrés Osmótico
Argentina
Germplasm
Panicum coloratum
Intraspecific Variation
Salt Tolerance
Hypoxia
Forage
Osmotic Stress
Estrés Salino
Panicum coloratum var. coloratum
dc.description.none.fl_txt_mv Thirteen accessions from a collection of Panicum coloratum var. coloratum in Argentina were evaluated under hypoxia, salinity, and combined salinity-hypoxia to assess variability in stress tolerance in a controlled hydroponic experiment. Biomass production, relative growth rate, root:shoot ratio, relative water content, and tolerance indices were evaluated. Salinity and combined stress caused the greatest reductions in plant growth, whereas hypoxia alone had smaller effects. Relative growth rate decreased by 4.4% under hypoxia, 14.1% under salinity, and 16.9% under combined stress compared with the control. Root:shoot ratio increased under all stress treatments, particularly under hypoxia and combined stress, indicating shifts in biomass allocation. Significant differences among accessions were detected for root biomass, relative growth rate, tolerance indices, and stress interaction responses. Interaction analysis revealed additive responses in 46% of the accessions, synergistic responses in 38%, and antagonistic responses in 15%. The observed variability in stress interaction patterns suggests distinct tolerance mechanisms. No significant association between relative growth rate and stress tolerance was apparent. Overall, these results demonstrate intraspecific variation and provide information for breeding programmes aimed at improving forage adaptation to saline and waterlogged environments.
EEA Rafaela
Fil: Ramirez, Camila. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Ramirez, Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Umbriago, Luciana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Umbriago, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Lifschitz, Mauro Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Lifschitz, Mauro Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina; Argentina
Fil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
description Thirteen accessions from a collection of Panicum coloratum var. coloratum in Argentina were evaluated under hypoxia, salinity, and combined salinity-hypoxia to assess variability in stress tolerance in a controlled hydroponic experiment. Biomass production, relative growth rate, root:shoot ratio, relative water content, and tolerance indices were evaluated. Salinity and combined stress caused the greatest reductions in plant growth, whereas hypoxia alone had smaller effects. Relative growth rate decreased by 4.4% under hypoxia, 14.1% under salinity, and 16.9% under combined stress compared with the control. Root:shoot ratio increased under all stress treatments, particularly under hypoxia and combined stress, indicating shifts in biomass allocation. Significant differences among accessions were detected for root biomass, relative growth rate, tolerance indices, and stress interaction responses. Interaction analysis revealed additive responses in 46% of the accessions, synergistic responses in 38%, and antagonistic responses in 15%. The observed variability in stress interaction patterns suggests distinct tolerance mechanisms. No significant association between relative growth rate and stress tolerance was apparent. Overall, these results demonstrate intraspecific variation and provide information for breeding programmes aimed at improving forage adaptation to saline and waterlogged environments.
publishDate 2026
dc.date.none.fl_str_mv 2026-09-07T14:33:19Z
2026-09-07T14:33:19Z
2026-08
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/20.500.12123/27678
https://link.springer.com/article/10.1007/s10722-026-02879-5
0925-9864
1573-5109
https://doi.org/10.1007/s10722-026-02879-5
url http://hdl.handle.net/20.500.12123/27678
https://link.springer.com/article/10.1007/s10722-026-02879-5
https://doi.org/10.1007/s10722-026-02879-5
identifier_str_mv 0925-9864
1573-5109
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/2023-PD-L01-I100, Genética en forrajeras para ambientes y mercados desafiantes
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 Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Genetic Resources and Crop Evolution 73 (6) : article number 245. (August 2026)
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 12.733355

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