Chanter model: nonlinear modeling of the fruit growth of cocoa
ABSTRACT: The growth of plants and animals can be described through a growth curve. This curve is given by the equation of a nonlinear model, such as the Logistic model and the Gompertz model. The objective of this study was to adjust the Chanter model, as well as Logistic and Gompertz, using a set...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
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| Series: | Ciência Rural |
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| Online Access: | http://www.scielo.br/pdf/cr/v49n11/1678-4596-cr-49-11-e20190409.pdf |
| _version_ | 1819102545967054848 |
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| author | Pollyane Vieira da Silva Taciana Villela Savian |
| author_facet | Pollyane Vieira da Silva Taciana Villela Savian |
| author_sort | Pollyane Vieira da Silva |
| collection | DOAJ |
| description | ABSTRACT: The growth of plants and animals can be described through a growth curve. This curve is given by the equation of a nonlinear model, such as the Logistic model and the Gompertz model. The objective of this study was to adjust the Chanter model, as well as Logistic and Gompertz, using a set of cocoa (clone Sial-105) fruit whose length and diameter measurements were evaluated from 30 to 180 days after pollination, every 15 days. The Chanter model is a hybrid between the Logistic model and Gompertz model whose parameters can be interpreted similarly. A comparison of the quality of fit between the models was made using the following statistical measures: the Akaike’s information criterion (AIC), the Akaike’s weights criterion, Bayesian information criterion (BIC), residual standard deviation (RSD),the adjusted coefficient of determination (R²aj) and the measures of non-linearity Box’s bias and curvature of Bates and Watts. It was verified that the Chanter model is the most suitable one among the studied models for modeling the cocoa data. |
| first_indexed | 2024-12-22T01:36:16Z |
| format | Article |
| id | doaj.art-a96eb5059a1e4a688892d290154aec9c |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-22T01:36:16Z |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-a96eb5059a1e4a688892d290154aec9c2022-12-21T18:43:21ZengUniversidade Federal de Santa MariaCiência Rural1678-459610.1590/0103-8478cr20190409Chanter model: nonlinear modeling of the fruit growth of cocoaPollyane Vieira da SilvaTaciana Villela SavianABSTRACT: The growth of plants and animals can be described through a growth curve. This curve is given by the equation of a nonlinear model, such as the Logistic model and the Gompertz model. The objective of this study was to adjust the Chanter model, as well as Logistic and Gompertz, using a set of cocoa (clone Sial-105) fruit whose length and diameter measurements were evaluated from 30 to 180 days after pollination, every 15 days. The Chanter model is a hybrid between the Logistic model and Gompertz model whose parameters can be interpreted similarly. A comparison of the quality of fit between the models was made using the following statistical measures: the Akaike’s information criterion (AIC), the Akaike’s weights criterion, Bayesian information criterion (BIC), residual standard deviation (RSD),the adjusted coefficient of determination (R²aj) and the measures of non-linearity Box’s bias and curvature of Bates and Watts. It was verified that the Chanter model is the most suitable one among the studied models for modeling the cocoa data.http://www.scielo.br/pdf/cr/v49n11/1678-4596-cr-49-11-e20190409.pdfnonlinear regressionChanter modelnonlinearity and cocoa fruits measures |
| spellingShingle | Pollyane Vieira da Silva Taciana Villela Savian Chanter model: nonlinear modeling of the fruit growth of cocoa Ciência Rural nonlinear regression Chanter model nonlinearity and cocoa fruits measures |
| title | Chanter model: nonlinear modeling of the fruit growth of cocoa |
| title_full | Chanter model: nonlinear modeling of the fruit growth of cocoa |
| title_fullStr | Chanter model: nonlinear modeling of the fruit growth of cocoa |
| title_full_unstemmed | Chanter model: nonlinear modeling of the fruit growth of cocoa |
| title_short | Chanter model: nonlinear modeling of the fruit growth of cocoa |
| title_sort | chanter model nonlinear modeling of the fruit growth of cocoa |
| topic | nonlinear regression Chanter model nonlinearity and cocoa fruits measures |
| url | http://www.scielo.br/pdf/cr/v49n11/1678-4596-cr-49-11-e20190409.pdf |
| work_keys_str_mv | AT pollyanevieiradasilva chantermodelnonlinearmodelingofthefruitgrowthofcocoa AT tacianavillelasavian chantermodelnonlinearmodelingofthefruitgrowthofcocoa |