Generally, ethephon (2-chloroethyl phosphonic acid) is applied to reduce fruit re moval force of cherries fruits. In this research, effect of ethephon at concentrations of 0 (control), 150, 225 and 300 ppm in 7 days before harvesting on fruit detached force from pedicle, pedicle detached force from shoot, fruits abscission percent age after shaking, fruits weight, flesh/pit ratio, fruit diameter, and fruit firmness on “Cigány meggy” and “Érdi jubileum” sour cherry cultivars were studied. By increasing of ethephon concentration, decreased fruit detached force from pedicle, pedicle detached force from shoot and fruits abscission percentage also fruit firm ness. Fruits weight, flesh/pit ratio and in both cultivars increased. Ethephon con centration was increased significantly fruit diameter of “Érdi jubileum”, while it was not effective on fruit diameter of “Cigány meggy”.

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