Abstract
Psychometric studies on grading work of vegetables and fruits were carried out using Kaki (Diospyros Kaki L. cultivar. Fuyu). Since the actual farm products were usually perishable and changeable the color slide pictures of Kaki in place of the actual ones were investigated here.
Analysis of percentages of three grades judged, the rank of grading and the factors affecting judgment revealed that although there are less informations on chink between calyx and flesh, hardness and shape of fruits than those of actual fruits, their color slide pictures could be successfully used for the purpose of the present study.
