Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions

Winter wild oat [Avena sterilis ssp. ludoviciana (Durieu) Gillet & Magne; referred to as A. sterilis here] is one of the major weed species of the Avena genus, given its high competitive ability to infest cereal crops worldwide, with special concern in Spain. A nine-location field experiment was...

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Autores: Sousa Ortega, Carlos, Royo-Esnal, Aritz, Loureiro, Iñigo, Marí, Ana Isabel, Lezáun San Martín, Juan Antonio, Cordero, Fernando, Saavedra, Milagros, Paramio, José Antonio, Fernández, José Luis, Torra Farré, Joel, Urbano, José María
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/73199
Acceso en línea:https://doi.org/10.1017/wsc.2021.10
http://hdl.handle.net/10459.1/73199
Access Level:acceso abierto
Palabra clave:Hydrothermal model
Phenology
RMSE
Seedling emergence model
Weibull
Winter wild oat
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spelling Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditionsSousa Ortega, CarlosRoyo-Esnal, AritzLoureiro, IñigoMarí, Ana IsabelLezáun San Martín, Juan AntonioCordero, FernandoSaavedra, MilagrosParamio, José AntonioFernández, José LuisTorra Farré, JoelUrbano, José MaríaHydrothermal modelPhenologyRMSESeedling emergence modelWeibullWinter wild oatWinter wild oat [Avena sterilis ssp. ludoviciana (Durieu) Gillet & Magne; referred to as A. sterilis here] is one of the major weed species of the Avena genus, given its high competitive ability to infest cereal crops worldwide, with special concern in Spain. A nine-location field experiment was established across Spain where a total of 400 A. sterilis seeds per location were sowed in four replicates in autumn 2016 to monitor the emergence during two growing seasons in dryland conditions. The data were used to test the prediction ability of previously published thermal (TT) and hydrothermal time (HTT) models and to develop new models, if required. Overall, the average percentage of emergence was 30% during the first season and 21% during the second season. In both seasons, the main emergence flush occurred between November and February. According to the phenological stage, A. sterilis achieved the tillering earlier in southern sites, between November 25 and the end of December, compared with northern sites, where this stage was reached at the end of January. The newly developed model described the emergence with precision, using three cardinal temperatures to estimate the TT. The three cardinal points were established at −1.0, 5.8, and 18.0 C for base (T b), optimum (T o), and ceiling temperature (T c), while the base water potential (Ψb) was established at −0.2 MPa for the HTT estimation. This study contributes to improving prediction of the emergence of A. sterilis and provides knowledge for decision support systems (DSS) for the control of this weed.We would like to thank first the funding institutions, Cátedra Adama and the Spanish Weed Science Society (SEMh), with special mention of Cátedra Adama, which financed the article publishing charges. Also, JT acknowledges support from the Spanish Ministry of Science, Innovation and Universities (grant Ramon y Cajal RYC2018-023866-I). We also want to thank the students and the technicians that have helped with the fieldwork for this experiment in different sites, without whose help data collection would have been more difficult. No conflicts of interest have been declared.Weed Science Society of America2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1017/wsc.2021.10http://hdl.handle.net/10459.1/73199reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésReproducció del document publicat a: https://doi.org/10.1017/wsc.2021.10Weed Science, 2021, vol. 69, p. 341-352cc-by (c) Sousa et al., 2021info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:repositori.udl.cat:10459.1/731992026-06-24T12:42:17Z
dc.title.none.fl_str_mv Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
title Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
spellingShingle Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
Sousa Ortega, Carlos
Hydrothermal model
Phenology
RMSE
Seedling emergence model
Weibull
Winter wild oat
title_short Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
title_full Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
title_fullStr Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
title_full_unstemmed Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
title_sort Modeling emergence of sterile oat (Avena sterilis spp. ludoviciana) under semi-arid conditions
dc.creator.none.fl_str_mv Sousa Ortega, Carlos
Royo-Esnal, Aritz
Loureiro, Iñigo
Marí, Ana Isabel
Lezáun San Martín, Juan Antonio
Cordero, Fernando
Saavedra, Milagros
Paramio, José Antonio
Fernández, José Luis
Torra Farré, Joel
Urbano, José María
author Sousa Ortega, Carlos
author_facet Sousa Ortega, Carlos
Royo-Esnal, Aritz
Loureiro, Iñigo
Marí, Ana Isabel
Lezáun San Martín, Juan Antonio
Cordero, Fernando
Saavedra, Milagros
Paramio, José Antonio
Fernández, José Luis
Torra Farré, Joel
Urbano, José María
author_role author
author2 Royo-Esnal, Aritz
Loureiro, Iñigo
Marí, Ana Isabel
Lezáun San Martín, Juan Antonio
Cordero, Fernando
Saavedra, Milagros
Paramio, José Antonio
Fernández, José Luis
Torra Farré, Joel
Urbano, José María
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Hydrothermal model
Phenology
RMSE
Seedling emergence model
Weibull
Winter wild oat
topic Hydrothermal model
Phenology
RMSE
Seedling emergence model
Weibull
Winter wild oat
description Winter wild oat [Avena sterilis ssp. ludoviciana (Durieu) Gillet & Magne; referred to as A. sterilis here] is one of the major weed species of the Avena genus, given its high competitive ability to infest cereal crops worldwide, with special concern in Spain. A nine-location field experiment was established across Spain where a total of 400 A. sterilis seeds per location were sowed in four replicates in autumn 2016 to monitor the emergence during two growing seasons in dryland conditions. The data were used to test the prediction ability of previously published thermal (TT) and hydrothermal time (HTT) models and to develop new models, if required. Overall, the average percentage of emergence was 30% during the first season and 21% during the second season. In both seasons, the main emergence flush occurred between November and February. According to the phenological stage, A. sterilis achieved the tillering earlier in southern sites, between November 25 and the end of December, compared with northern sites, where this stage was reached at the end of January. The newly developed model described the emergence with precision, using three cardinal temperatures to estimate the TT. The three cardinal points were established at −1.0, 5.8, and 18.0 C for base (T b), optimum (T o), and ceiling temperature (T c), while the base water potential (Ψb) was established at −0.2 MPa for the HTT estimation. This study contributes to improving prediction of the emergence of A. sterilis and provides knowledge for decision support systems (DSS) for the control of this weed.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1017/wsc.2021.10
http://hdl.handle.net/10459.1/73199
url https://doi.org/10.1017/wsc.2021.10
http://hdl.handle.net/10459.1/73199
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1017/wsc.2021.10
Weed Science, 2021, vol. 69, p. 341-352
dc.rights.none.fl_str_mv cc-by (c) Sousa et al., 2021
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Sousa et al., 2021
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Weed Science Society of America
publisher.none.fl_str_mv Weed Science Society of America
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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