1. Chanter model: nonlinear modeling of the fruit growth of cocoa.
- Author
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da Silva, Pollyane Vieira and Savian, Taciana Villela
- Subjects
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COCOA , *CACAO beans , *AKAIKE information criterion , *PLANT growth , *NONLINEAR equations , *FRUIT , *LENGTH measurement - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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