Photoperiod and vernalization requirements in Argentinian oat genotypes

Autores
Dietz, Juan Ignacio; Da Silva, Laura Victoria; Schierenbeck, Matías; Pardi, Martín; Simón, María Rosa
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Understanding the response to temperature, vernalization, and photoperiod provides a significant advantage for optimizing the adaptability of oat (Avena sativa) genotypes to different production areas and sowing seasons in a climate change context. For this, two experiments were carried out in the Argentinian Pampas, where nine oat genotypes were sown on six sowing dates (from June to December, <10 h to >15 h photoperiod) and three vernalization treatments (40, 20, and 0 days at 4°C). Days from emergence to flowering were evaluated and then converted to growing degree days. The adjustment of duration from emergence to flowering using an average photoperiod was performed using bilinear regressions to determine the photoperiod sensitivity (Ps), threshold (Pt), and earliness per se. Our findings showed that genotypes were insensitive to vernalization, others with minimal requirements (<480 cold hours at 4°C) while materials with high requirements were not found, indicating a reasonably constrained range of variability. Different photoperiod responses were found between the genotypes explained by differences in Ps (slopes from −310°C days h−1 to −158°C days h−1) and Pt. Overall, vernalization was not strictly necessary for flowering across all genotypes or sowing dates, but its fulfillment significantly accelerated developmental transitions under long-day conditions.
EEA Bordenave
Fil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina
Fil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schierenbeck, Matías. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
Fil: Schierenbeck, Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schierenbeck, Matías. Leibniz Institute of Plant Genetics and Crop Plant Research. Physiology and Cell Biology Department; Alemania
Fil: Pardi, Martín. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fuente
Agronomy Journal 117 (3) : e70078. (May/June 2025)
Materia
Avena
Genotipos
Fotoperiódo
Vernalización
Argentina
Oats
Genotypes
Photoperiod
Vernalization
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:20.500.12123/22434
Acceder
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oai_identifier_str oai:localhost:20.500.12123/22434
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Photoperiod and vernalization requirements in Argentinian oat genotypesDietz, Juan IgnacioDa Silva, Laura VictoriaSchierenbeck, MatíasPardi, MartínSimón, María RosaAvenaGenotiposFotoperiódoVernalizaciónArgentinaOatsGenotypesPhotoperiodVernalizationUnderstanding the response to temperature, vernalization, and photoperiod provides a significant advantage for optimizing the adaptability of oat (Avena sativa) genotypes to different production areas and sowing seasons in a climate change context. For this, two experiments were carried out in the Argentinian Pampas, where nine oat genotypes were sown on six sowing dates (from June to December, <10 h to >15 h photoperiod) and three vernalization treatments (40, 20, and 0 days at 4°C). Days from emergence to flowering were evaluated and then converted to growing degree days. The adjustment of duration from emergence to flowering using an average photoperiod was performed using bilinear regressions to determine the photoperiod sensitivity (Ps), threshold (Pt), and earliness per se. Our findings showed that genotypes were insensitive to vernalization, others with minimal requirements (<480 cold hours at 4°C) while materials with high requirements were not found, indicating a reasonably constrained range of variability. Different photoperiod responses were found between the genotypes explained by differences in Ps (slopes from −310°C days h−1 to −158°C days h−1) and Pt. Overall, vernalization was not strictly necessary for flowering across all genotypes or sowing dates, but its fulfillment significantly accelerated developmental transitions under long-day conditions.EEA BordenaveFil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; ArgentinaFil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Schierenbeck, Matías. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; ArgentinaFil: Schierenbeck, Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Schierenbeck, Matías. Leibniz Institute of Plant Genetics and Crop Plant Research. Physiology and Cell Biology Department; AlemaniaFil: Pardi, Martín. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley2025-05-26T11:03:45Z2025-05-26T11:03:45Z2025-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/22434https://acsess.onlinelibrary.wiley.com/doi/10.1002/agj2.700780002-19621435-0645https://doi.org/10.1002/agj2.70078Agronomy Journal 117 (3) : e70078. (May/June 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo: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)2025-09-04T09:51:05Zoai:localhost:20.500.12123/22434instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:51:05.773INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Photoperiod and vernalization requirements in Argentinian oat genotypes
title Photoperiod and vernalization requirements in Argentinian oat genotypes
spellingShingle Photoperiod and vernalization requirements in Argentinian oat genotypes
Dietz, Juan Ignacio
Avena
Genotipos
Fotoperiódo
Vernalización
Argentina
Oats
Genotypes
Photoperiod
Vernalization
title_short Photoperiod and vernalization requirements in Argentinian oat genotypes
title_full Photoperiod and vernalization requirements in Argentinian oat genotypes
title_fullStr Photoperiod and vernalization requirements in Argentinian oat genotypes
title_full_unstemmed Photoperiod and vernalization requirements in Argentinian oat genotypes
title_sort Photoperiod and vernalization requirements in Argentinian oat genotypes
dc.creator.none.fl_str_mv Dietz, Juan Ignacio
Da Silva, Laura Victoria
Schierenbeck, Matías
Pardi, Martín
Simón, María Rosa
author Dietz, Juan Ignacio
author_facet Dietz, Juan Ignacio
Da Silva, Laura Victoria
Schierenbeck, Matías
Pardi, Martín
Simón, María Rosa
author_role author
author2 Da Silva, Laura Victoria
Schierenbeck, Matías
Pardi, Martín
Simón, María Rosa
author2_role author
author
author
author
dc.subject.none.fl_str_mv Avena
Genotipos
Fotoperiódo
Vernalización
Argentina
Oats
Genotypes
Photoperiod
Vernalization
topic Avena
Genotipos
Fotoperiódo
Vernalización
Argentina
Oats
Genotypes
Photoperiod
Vernalization
dc.description.none.fl_txt_mv Understanding the response to temperature, vernalization, and photoperiod provides a significant advantage for optimizing the adaptability of oat (Avena sativa) genotypes to different production areas and sowing seasons in a climate change context. For this, two experiments were carried out in the Argentinian Pampas, where nine oat genotypes were sown on six sowing dates (from June to December, <10 h to >15 h photoperiod) and three vernalization treatments (40, 20, and 0 days at 4°C). Days from emergence to flowering were evaluated and then converted to growing degree days. The adjustment of duration from emergence to flowering using an average photoperiod was performed using bilinear regressions to determine the photoperiod sensitivity (Ps), threshold (Pt), and earliness per se. Our findings showed that genotypes were insensitive to vernalization, others with minimal requirements (<480 cold hours at 4°C) while materials with high requirements were not found, indicating a reasonably constrained range of variability. Different photoperiod responses were found between the genotypes explained by differences in Ps (slopes from −310°C days h−1 to −158°C days h−1) and Pt. Overall, vernalization was not strictly necessary for flowering across all genotypes or sowing dates, but its fulfillment significantly accelerated developmental transitions under long-day conditions.
EEA Bordenave
Fil: Dietz, Juan Ignacio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Dietz, Juan Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina.
Fil: Dietz, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Da Silva, Laura Victoria. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina
Fil: Da Silva, Laura Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schierenbeck, Matías. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina
Fil: Schierenbeck, Matías. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schierenbeck, Matías. Leibniz Institute of Plant Genetics and Crop Plant Research. Physiology and Cell Biology Department; Alemania
Fil: Pardi, Martín. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Cátedra de Cerealicultura; Argentina.
Fil: Simon, Maria Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Understanding the response to temperature, vernalization, and photoperiod provides a significant advantage for optimizing the adaptability of oat (Avena sativa) genotypes to different production areas and sowing seasons in a climate change context. For this, two experiments were carried out in the Argentinian Pampas, where nine oat genotypes were sown on six sowing dates (from June to December, <10 h to >15 h photoperiod) and three vernalization treatments (40, 20, and 0 days at 4°C). Days from emergence to flowering were evaluated and then converted to growing degree days. The adjustment of duration from emergence to flowering using an average photoperiod was performed using bilinear regressions to determine the photoperiod sensitivity (Ps), threshold (Pt), and earliness per se. Our findings showed that genotypes were insensitive to vernalization, others with minimal requirements (<480 cold hours at 4°C) while materials with high requirements were not found, indicating a reasonably constrained range of variability. Different photoperiod responses were found between the genotypes explained by differences in Ps (slopes from −310°C days h−1 to −158°C days h−1) and Pt. Overall, vernalization was not strictly necessary for flowering across all genotypes or sowing dates, but its fulfillment significantly accelerated developmental transitions under long-day conditions.
publishDate 2025
dc.date.none.fl_str_mv 2025-05-26T11:03:45Z
2025-05-26T11:03:45Z
2025-05
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/20.500.12123/22434
https://acsess.onlinelibrary.wiley.com/doi/10.1002/agj2.70078
0002-1962
1435-0645
https://doi.org/10.1002/agj2.70078
url http://hdl.handle.net/20.500.12123/22434
https://acsess.onlinelibrary.wiley.com/doi/10.1002/agj2.70078
https://doi.org/10.1002/agj2.70078
identifier_str_mv 0002-1962
1435-0645
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
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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 Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv Agronomy Journal 117 (3) : e70078. (May/June 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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