In this study the mass of tow Iranian apricot varieties were predicted with using different physical characteristics
in four models includes: Linear, Quadratic, S-curve, and Exponential. According to the results, the best and the
worst models for prediction the mass of Ghavami cultivar were based on volume and length of the fruit with
determination coefficients of 0.80 and 0.61, respectively. Also these results for Rajabali cultivar were based on
criteria projected area and length of the fruit with determination coefficients of 0.97 and 0.63, respectively. Also
observed that Exponential model was not suitable at all
