Journal of Food, Agriculture and Environment

Three-dimensional maps of equatorial diameter and fruit juice yield in an orange orchard


Eloi Gasparin 1*, Eduardo Godoy de Souza 2, Miguel Angel Uribe-Opazo 2, Rafaela Fernandes Nicolau 3, Davi Marcondes Rocha 3, Vanderlei Artur Bier 4

Recieved Date: 2015-09-02, Accepted Date: 2015-12-22


The physical and chemical characteristics of fruits depend, among other factors, on the ambient conditions during the crop cycle and on the position of the fruit on the tree. The three-dimensional visualization of these features allow us to recognize the variability of the spatial distribution by using volumes, which are obtained from a three-dimensional interpolation process based on the collection of three-dimensional data. This study aimed to model the three-dimensional spatial variability of equatorial diameter and fruit juice yield, by generating three-dimensional maps in an orchard with Monte Parnaso oranges, in the city of Nova Laranjeiras, Paraná state, Brazil. We collected geographic coordinates and analyzed the equatorial diameter and fruit juice yield of 715 fruits, collected from nine trees in the years 2011, 2012 and 2013. According to the results, there is a slightly significant increase in the equatorial diameter of the fruits as the vertical position of the fruits on the tree increases. Considering the latitude of the orchard and growing season, fruits receiving higher incidence of solar radiation showed lower juice yield. The three-dimensional interpolation method allows the study of the three-dimensional spatial variability of the fruit’s physical attributes.


Precision horticulture, three-dimensional geostatistics, spatial variability

Journal: Journal of Food, Agriculture and Environment
Year: 2016
Volume: 14
Issue: 1
Category: Agriculture
Pages: 92-100

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