About identification of features that affect the estimation of citrus harvest
Griselda R. R. Bóbeda | Silvia M. Mazza | Noelia Rico | Cristian F. Brenes Pérez | José E. Gaiad | Susana Irene Díaz Rodríguez
Accurate models for early harvest estimation in citrus production generally involve expensive variables. The goal of this research work was to develop a model to provide early and accurate estimations of harvest using low-cost features. Given the original data may derive from tree measurements, meteorological stations, or satellites, they have varied costs. The studied orchards included tangerines (Citrus reticulata x C. sinensis) and sweet oranges (C. sinensis) located in northeastern Argentina. Machine learning methods combined with different datasets were tested to obtain the most accurate harvest estimation. The final model is based on support vector machines with low-cost variables like species, age, irrigation, red and near-infrared reflectance in February and December, NDVI in December, rain during ripening, and humidity during fruit growth. Highlights: • Red and near-infrared reflectance in February and December are helpful values to predict orange harvest. • SVM is an efficient method to predict harvest. • A ranking method to A ranking-based method has been developed to identify the variables that best predict orange production.
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