Estimation of apricot (Prunus armeniaca) halves surface area
2007
Matic-Kekic, S.,Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet, Departman za poljoprivrednu tehniku | Babic, Lj.,Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet, Departman za poljoprivrednu tehniku | Babic, M.,Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet, Departman za poljoprivrednu tehniku | Pavkov, I.,Univerzitet u Novom Sadu, Novi Sad (Serbia). Poljoprivredni fakultet, Departman za poljoprivrednu tehniku
Two mathematical models for predicting surface area in apricot halves were evaluated, based on the fruit dimensions. Length, height, and width of 30 apricots and stones have measured. Additionally, the real surface area of 5 control fruit halves and stones was measured too, by means of the narrow adhesive tapes. Ellipsoid model was used for estimating apricot halves surface area. The difference between model calculation and real area measurement was 2%. Correlation matrix of apricot dimensions confirmed the dependence between the commodity height and other two fruit dimensions. This finding was used for creating another mathematical model. The advantage of this model is in its simplicity, that is, only one apricot dimension - height marked as B, is unknown. Calculation error during the second model testing was 4.8%. It can be pointed out, therefore, that the second model, regardless of larger dispersion, is well middle centered. That is the reason why calculated mean apricot halves surface area amounted to 51 square cm for both models.
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