Environmental variables related to wheat yields in the semiarid pampa region of Argentina

Autores
Scian, Beatriz Viviana; Bouza, Mariana Eve
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The current paper analyses various environmental parameters in relation to wheat yields in Bordenave, Province of Buenos Aires, Argentina. The variables used are: precipitation (ppt), maximum (Tx) and minimum temperature (Tmi) as well as those obtained by applying the Palmer model. Decadic and phenological scales are used for data corresponding to the period 1977-2000. The stepwise method is used to obtain a multi-variate equation to calculate yield taking into account environmental variables only. For a five variates model the coefficient of determination, R2 equals 95.79% and the standard error of estimation is 129.0 kg ha-1. In the sample yields, the incidence of total variability for thermal variables is 42.7% and for hydrological variables, 53%. The value and sign of the correlation coefficients were analysed throughout the cultivation cycle. The α coefficient is mainly responsible for yield variance during tillering and stem elongation. There is good correlation with the values of Palmer's Drought Severity Index (PDSI) for the flowering and grain filling stages.
Fil: Scian, Beatriz Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Bouza, Mariana Eve. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Materia
CORRELATIONS
ENVIRONMENTAL VARIABLES
SEMIARID PAMPA REGION
WHEAT YIELD
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/97509
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/97509
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Environmental variables related to wheat yields in the semiarid pampa region of ArgentinaScian, Beatriz VivianaBouza, Mariana EveCORRELATIONSENVIRONMENTAL VARIABLESSEMIARID PAMPA REGIONWHEAT YIELDhttps://purl.org/becyt/ford/4.5https://purl.org/becyt/ford/4The current paper analyses various environmental parameters in relation to wheat yields in Bordenave, Province of Buenos Aires, Argentina. The variables used are: precipitation (ppt), maximum (Tx) and minimum temperature (Tmi) as well as those obtained by applying the Palmer model. Decadic and phenological scales are used for data corresponding to the period 1977-2000. The stepwise method is used to obtain a multi-variate equation to calculate yield taking into account environmental variables only. For a five variates model the coefficient of determination, R2 equals 95.79% and the standard error of estimation is 129.0 kg ha-1. In the sample yields, the incidence of total variability for thermal variables is 42.7% and for hydrological variables, 53%. The value and sign of the correlation coefficients were analysed throughout the cultivation cycle. The α coefficient is mainly responsible for yield variance during tillering and stem elongation. There is good correlation with the values of Palmer's Drought Severity Index (PDSI) for the flowering and grain filling stages.Fil: Scian, Beatriz Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaFil: Bouza, Mariana Eve. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2005-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97509Scian, Beatriz Viviana; Bouza, Mariana Eve; Environmental variables related to wheat yields in the semiarid pampa region of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 61; 4; 7-2005; 669-6790140-1963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2004.09.018info:eu-repo/semantics/altIdentifier/url/sciencedirect.com/science/article/pii/S0140196304002186info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:23Zoai:ri.conicet.gov.ar:11336/97509instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:47:23.535CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Environmental variables related to wheat yields in the semiarid pampa region of Argentina
title Environmental variables related to wheat yields in the semiarid pampa region of Argentina
spellingShingle Environmental variables related to wheat yields in the semiarid pampa region of Argentina
Scian, Beatriz Viviana
CORRELATIONS
ENVIRONMENTAL VARIABLES
SEMIARID PAMPA REGION
WHEAT YIELD
title_short Environmental variables related to wheat yields in the semiarid pampa region of Argentina
title_full Environmental variables related to wheat yields in the semiarid pampa region of Argentina
title_fullStr Environmental variables related to wheat yields in the semiarid pampa region of Argentina
title_full_unstemmed Environmental variables related to wheat yields in the semiarid pampa region of Argentina
title_sort Environmental variables related to wheat yields in the semiarid pampa region of Argentina
dc.creator.none.fl_str_mv Scian, Beatriz Viviana
Bouza, Mariana Eve
author Scian, Beatriz Viviana
author_facet Scian, Beatriz Viviana
Bouza, Mariana Eve
author_role author
author2 Bouza, Mariana Eve
author2_role author
dc.subject.none.fl_str_mv CORRELATIONS
ENVIRONMENTAL VARIABLES
SEMIARID PAMPA REGION
WHEAT YIELD
topic CORRELATIONS
ENVIRONMENTAL VARIABLES
SEMIARID PAMPA REGION
WHEAT YIELD
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.5
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv The current paper analyses various environmental parameters in relation to wheat yields in Bordenave, Province of Buenos Aires, Argentina. The variables used are: precipitation (ppt), maximum (Tx) and minimum temperature (Tmi) as well as those obtained by applying the Palmer model. Decadic and phenological scales are used for data corresponding to the period 1977-2000. The stepwise method is used to obtain a multi-variate equation to calculate yield taking into account environmental variables only. For a five variates model the coefficient of determination, R2 equals 95.79% and the standard error of estimation is 129.0 kg ha-1. In the sample yields, the incidence of total variability for thermal variables is 42.7% and for hydrological variables, 53%. The value and sign of the correlation coefficients were analysed throughout the cultivation cycle. The α coefficient is mainly responsible for yield variance during tillering and stem elongation. There is good correlation with the values of Palmer's Drought Severity Index (PDSI) for the flowering and grain filling stages.
Fil: Scian, Beatriz Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Bouza, Mariana Eve. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
description The current paper analyses various environmental parameters in relation to wheat yields in Bordenave, Province of Buenos Aires, Argentina. The variables used are: precipitation (ppt), maximum (Tx) and minimum temperature (Tmi) as well as those obtained by applying the Palmer model. Decadic and phenological scales are used for data corresponding to the period 1977-2000. The stepwise method is used to obtain a multi-variate equation to calculate yield taking into account environmental variables only. For a five variates model the coefficient of determination, R2 equals 95.79% and the standard error of estimation is 129.0 kg ha-1. In the sample yields, the incidence of total variability for thermal variables is 42.7% and for hydrological variables, 53%. The value and sign of the correlation coefficients were analysed throughout the cultivation cycle. The α coefficient is mainly responsible for yield variance during tillering and stem elongation. There is good correlation with the values of Palmer's Drought Severity Index (PDSI) for the flowering and grain filling stages.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
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/11336/97509
Scian, Beatriz Viviana; Bouza, Mariana Eve; Environmental variables related to wheat yields in the semiarid pampa region of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 61; 4; 7-2005; 669-679
0140-1963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/97509
identifier_str_mv Scian, Beatriz Viviana; Bouza, Mariana Eve; Environmental variables related to wheat yields in the semiarid pampa region of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 61; 4; 7-2005; 669-679
0140-1963
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2004.09.018
info:eu-repo/semantics/altIdentifier/url/sciencedirect.com/science/article/pii/S0140196304002186
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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