Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625

In Brazil, the production of sweet oranges has been threatened by the Citrus Variegated Chlorosis (CVC) incited by the gram-negative bacterium Xylella fastidiosa (Wells). Commercial citrus groves in two counties at the Northwestern Paraná state were evaluated to estimate the disease progression by u...

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Autores: Ueda, Clara Matiko, Yamamoto, Akemi Yamagata, Nunes, William Mário de Carvalho, Scapim, Carlos Alberto, Guedes, Terezinha Aparecida
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Brasil
Institución:Universidade Estadual de Maringá (UEM)
Repositorio:Acta Scientiarum. Agronomy (Online)
Idioma:portugués
inglés
OAI Identifier:oai:periodicos.uem.br/ojs:article/11625
Acceso en línea:http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625
Access Level:acceso abierto
Palabra clave:growth curves
nonlinear models
Citrus Variegated Chlorosi.
Fitopatologia
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spelling Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625growth curvesnonlinear modelsCitrus Variegated Chlorosi.growth curvesnonlinear modelsCitrus Variegated Chlorosi.FitopatologiaIn Brazil, the production of sweet oranges has been threatened by the Citrus Variegated Chlorosis (CVC) incited by the gram-negative bacterium Xylella fastidiosa (Wells). Commercial citrus groves in two counties at the Northwestern Paraná state were evaluated to estimate the disease progression by using parameterizations of nonlinear models. Groves of Citrus sinensis Osbeck, variety “Pêra”, “Valência”, “Natal” and “Folha Murcha” had all the plants evaluated for the presence of disease symptoms. Thereafter, different parameterizations of the Logistic and Gompertz models were fitted to these data. The goodness of fit was evaluated by the intrinsic (IN) and parameter-effects (PE) curvatures of Bates and Watts, the bias of Box and the Hougaard measures of skewness. In Loanda, the best model was the Fermi-Dirac, and in Nova Esperança the data were best fitted to the parameterization L5, which is also a parameterization from the Logistic model.In Brazil, the production of sweet oranges has been threatened by the Citrus Variegated Chlorosis (CVC) incited by the gram-negative bacterium Xylella fastidiosa (Wells). Commercial citrus groves in two counties at the Northwestern Paraná state were evaluated to estimate the disease progression by using parameterizations of nonlinear models. Groves of Citrus sinensis Osbeck, variety “Pêra”, “Valência”, “Natal” and “Folha Murcha” had all the plants evaluated for the presence of disease symptoms. Thereafter, different parameterizations of the Logistic and Gompertz models were fitted to these data. The goodness of fit was evaluated by the intrinsic (IN) and parameter-effects (PE) curvatures of Bates and Watts, the bias of Box and the Hougaard measures of skewness. In Loanda, the best model was the Fermi-Dirac, and in Nova Esperança the data were best fitted to the parameterization L5, which is also a parameterization from the Logistic model.Universidade Estadual de Maringá2010-11-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1162510.4025/actasciagron.v32i4.11625Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 603-611Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 603-6111807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625/11625http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625/11625Ainfo:eu-repo/semantics/openAccessUeda, Clara MatikoYamamoto, Akemi YamagataNunes, William Mário de CarvalhoScapim, Carlos AlbertoGuedes, Terezinha Aparecida2022-11-23T18:38:26Zoai:periodicos.uem.br/ojs:article/11625Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:26Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
title Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
spellingShingle Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
Ueda, Clara Matiko
growth curves
nonlinear models
Citrus Variegated Chlorosi.
growth curves
nonlinear models
Citrus Variegated Chlorosi.
Fitopatologia
title_short Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
title_full Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
title_fullStr Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
title_full_unstemmed Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
title_sort Nonlinear models for describing the Citrus Variegated Chlorosis in groves of two counties at northwestern Paraná state, Brazil - doi: 10.4025/actasciagron.v32i4.11625
dc.creator.none.fl_str_mv Ueda, Clara Matiko
Yamamoto, Akemi Yamagata
Nunes, William Mário de Carvalho
Scapim, Carlos Alberto
Guedes, Terezinha Aparecida
author Ueda, Clara Matiko
author_facet Ueda, Clara Matiko
Yamamoto, Akemi Yamagata
Nunes, William Mário de Carvalho
Scapim, Carlos Alberto
Guedes, Terezinha Aparecida
author_role author
author2 Yamamoto, Akemi Yamagata
Nunes, William Mário de Carvalho
Scapim, Carlos Alberto
Guedes, Terezinha Aparecida
author2_role author
author
author
author
dc.subject.por.fl_str_mv growth curves
nonlinear models
Citrus Variegated Chlorosi.
growth curves
nonlinear models
Citrus Variegated Chlorosi.
Fitopatologia
topic growth curves
nonlinear models
Citrus Variegated Chlorosi.
growth curves
nonlinear models
Citrus Variegated Chlorosi.
Fitopatologia
description In Brazil, the production of sweet oranges has been threatened by the Citrus Variegated Chlorosis (CVC) incited by the gram-negative bacterium Xylella fastidiosa (Wells). Commercial citrus groves in two counties at the Northwestern Paraná state were evaluated to estimate the disease progression by using parameterizations of nonlinear models. Groves of Citrus sinensis Osbeck, variety “Pêra”, “Valência”, “Natal” and “Folha Murcha” had all the plants evaluated for the presence of disease symptoms. Thereafter, different parameterizations of the Logistic and Gompertz models were fitted to these data. The goodness of fit was evaluated by the intrinsic (IN) and parameter-effects (PE) curvatures of Bates and Watts, the bias of Box and the Hougaard measures of skewness. In Loanda, the best model was the Fermi-Dirac, and in Nova Esperança the data were best fitted to the parameterization L5, which is also a parameterization from the Logistic model.
publishDate 2010
dc.date.none.fl_str_mv 2010-11-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625
10.4025/actasciagron.v32i4.11625
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625
identifier_str_mv 10.4025/actasciagron.v32i4.11625
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625/11625
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11625/11625A
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 32 No 4 (2010); 603-611
Acta Scientiarum. Agronomy; v. 32 n. 4 (2010); 603-611
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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