Comparison of polynomial and nonlinear models on description of pepper growth

Detalhes bibliográficos
Autor(a) principal: Jane, Sérgio Alberto
Data de Publicação: 2019
Outros Autores: Fernandes, Felipe Augusto, Silva, Edilson Marcelino, Muniz, Joel Augusto, Fernandes, Tales Jesus
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/40409
Resumo: Pepper (Capsicum sp.) is important for the Brazilian agribusiness, serving as raw material for the food, pharmaceutical and cosmetic industries. The adequate evaluation of its plants growth may help in understanding the causes of crops yield variation, with it being able to be studied by regression models, which help to adequate the management with the different phenological phases. This study aimed to compare the fit of linear Polynomial model and the Logistic and Gompertz nonlinear models in the description of pepper plants growth from the Doce cultivar. Estimates were obtained by the Gauss-Newton method, with the quality of fitted models compared by graphical analysis and evaluators: adjusted coefficient of determination (R2 adj), Residual Standard Deviation (RSD) and the corrected Akaike Information Criterion (AICc). Residues were normal, independent and homocedastic at 5% level of significance. All models properly described the height of the Doce cultivar. The Logistic model was the most adequate according to the fitting evaluators, having higher value of R2 adj, and lower RSD and AICc values.
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spelling Comparison of polynomial and nonlinear models on description of pepper growthComparação dos modelos polinomial e não lineares na descrição do crescimento de pimentaDoce cultivarGrowth ratesSigmoid curveCultivar doceTaxas de crescimentoCurva sigmoidePepper (Capsicum sp.) is important for the Brazilian agribusiness, serving as raw material for the food, pharmaceutical and cosmetic industries. The adequate evaluation of its plants growth may help in understanding the causes of crops yield variation, with it being able to be studied by regression models, which help to adequate the management with the different phenological phases. This study aimed to compare the fit of linear Polynomial model and the Logistic and Gompertz nonlinear models in the description of pepper plants growth from the Doce cultivar. Estimates were obtained by the Gauss-Newton method, with the quality of fitted models compared by graphical analysis and evaluators: adjusted coefficient of determination (R2 adj), Residual Standard Deviation (RSD) and the corrected Akaike Information Criterion (AICc). Residues were normal, independent and homocedastic at 5% level of significance. All models properly described the height of the Doce cultivar. The Logistic model was the most adequate according to the fitting evaluators, having higher value of R2 adj, and lower RSD and AICc values.A pimenta (Capsicum sp.) é importante para o agronegócio brasileiro, como fonte de matéria-prima para as indústrias alimentar, farmacêutica e cosmética. A avaliação do crescimento adequado das suas plantas pode auxiliar no entendimento das causas de variação de produtividade da cultura e pode ser efetuada por meio de modelos de regressão, que ajudam a adequar o manejo com as diferentes fases fenológicas. O objetivo deste trabalho foi comparar o ajuste dos modelos linear Polinomial e não lineares Logístico e Gompertz na descrição do crescimento de plantas da cultivar Doce. As estimativas foram feitas utilizando o método de Gauss-Newton, a comparação da qualidade de ajuste dos modelos foi feita por meio de análise gráfica e dos avaliadores: coeficiente de determinação ajustado (R2aj), Desvio Padrão Residual (DPR) e o Critério de Informação de Akaike corrigido (AICc). Os resíduos foram normais, independentes e homocedásticos ao nível de 5% de significância. Ambos os modelos descreveram adequadamente a altura da cultivar Doce. O modelo Logístico foi o mais adequado conforme os avaliadores de ajuste, apresentou maior valor de R2aj, menores DPR e AICc.Universidade Federal Rural de Pernambuco2020-04-28T18:14:15Z2020-04-28T18:14:15Z2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfJANE, S. A. et al. Comparison of polynomial and nonlinear models on description of pepper growth. Revista Brasileira de Ciências Agrárias, Recife, v. 14, n. 4, 2019. DOI:10.5039/agraria.v14i4a7180.http://repositorio.ufla.br/jspui/handle/1/40409Revista Brasileira de Ciências Agráriasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessJane, Sérgio AlbertoFernandes, Felipe AugustoSilva, Edilson MarcelinoMuniz, Joel AugustoFernandes, Tales Jesuseng2020-04-28T18:14:52Zoai:localhost:1/40409Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-04-28T18:14:52Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Comparison of polynomial and nonlinear models on description of pepper growth
Comparação dos modelos polinomial e não lineares na descrição do crescimento de pimenta
title Comparison of polynomial and nonlinear models on description of pepper growth
spellingShingle Comparison of polynomial and nonlinear models on description of pepper growth
Jane, Sérgio Alberto
Doce cultivar
Growth rates
Sigmoid curve
Cultivar doce
Taxas de crescimento
Curva sigmoide
title_short Comparison of polynomial and nonlinear models on description of pepper growth
title_full Comparison of polynomial and nonlinear models on description of pepper growth
title_fullStr Comparison of polynomial and nonlinear models on description of pepper growth
title_full_unstemmed Comparison of polynomial and nonlinear models on description of pepper growth
title_sort Comparison of polynomial and nonlinear models on description of pepper growth
author Jane, Sérgio Alberto
author_facet Jane, Sérgio Alberto
Fernandes, Felipe Augusto
Silva, Edilson Marcelino
Muniz, Joel Augusto
Fernandes, Tales Jesus
author_role author
author2 Fernandes, Felipe Augusto
Silva, Edilson Marcelino
Muniz, Joel Augusto
Fernandes, Tales Jesus
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Jane, Sérgio Alberto
Fernandes, Felipe Augusto
Silva, Edilson Marcelino
Muniz, Joel Augusto
Fernandes, Tales Jesus
dc.subject.por.fl_str_mv Doce cultivar
Growth rates
Sigmoid curve
Cultivar doce
Taxas de crescimento
Curva sigmoide
topic Doce cultivar
Growth rates
Sigmoid curve
Cultivar doce
Taxas de crescimento
Curva sigmoide
description Pepper (Capsicum sp.) is important for the Brazilian agribusiness, serving as raw material for the food, pharmaceutical and cosmetic industries. The adequate evaluation of its plants growth may help in understanding the causes of crops yield variation, with it being able to be studied by regression models, which help to adequate the management with the different phenological phases. This study aimed to compare the fit of linear Polynomial model and the Logistic and Gompertz nonlinear models in the description of pepper plants growth from the Doce cultivar. Estimates were obtained by the Gauss-Newton method, with the quality of fitted models compared by graphical analysis and evaluators: adjusted coefficient of determination (R2 adj), Residual Standard Deviation (RSD) and the corrected Akaike Information Criterion (AICc). Residues were normal, independent and homocedastic at 5% level of significance. All models properly described the height of the Doce cultivar. The Logistic model was the most adequate according to the fitting evaluators, having higher value of R2 adj, and lower RSD and AICc values.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020-04-28T18:14:15Z
2020-04-28T18:14:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv JANE, S. A. et al. Comparison of polynomial and nonlinear models on description of pepper growth. Revista Brasileira de Ciências Agrárias, Recife, v. 14, n. 4, 2019. DOI:10.5039/agraria.v14i4a7180.
http://repositorio.ufla.br/jspui/handle/1/40409
identifier_str_mv JANE, S. A. et al. Comparison of polynomial and nonlinear models on description of pepper growth. Revista Brasileira de Ciências Agrárias, Recife, v. 14, n. 4, 2019. DOI:10.5039/agraria.v14i4a7180.
url http://repositorio.ufla.br/jspui/handle/1/40409
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
publisher.none.fl_str_mv Universidade Federal Rural de Pernambuco
dc.source.none.fl_str_mv Revista Brasileira de Ciências Agrárias
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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