Study some physical and mechanical properties of three cultivars of peach in Maturation Stages

Physical and mechanical properties of peach fruit are necessary for design of equipment to handle, transport, process and store the crop. These properties included fruit weight, dimensions, volume, density, thickness, sphericity, surface area, aspect ratio, geometric mean diameter, equivalent diameter, arithmetic mean diameter, project area in vertical and horizontal position and coefficient of friction. The analysis indicated that differences between average lengths, Thickness, Mass, Volume and Project area (in horizontal view) of the three peach cultivars were significant in two stage of Maturation. Also the variance analysis of data indicated that maturation stage had significant effect on the average values of friction coefficient in case of Shalil in all surfaces except wood surface and in case of Elberta values for wood surface were significant at 5% probability level, While the differences between the average values of friction coefficient for Anjiri in all surfaces were none significant in two maturation stages. The published comparison of data for these cultivars, which might be useful in design of industrial equipment for peach fruit, was generally found to be statistically different.