Özet:

Malatya Plain is the area where apricot farming is the most intense in Turkey, and apricot trees are grown in the plain under the influence of abiotic stress factors such as low spring temperatures and high summer temperatures that cause small fruit drops for various reasons. In this study, the effects of some organic preparations have been investigated in order to reduce the fruit drops and also improve the fruit quality. For this purpose, in the years of 2018 and 2019, six different organic preparations were applied as foliar sprays together with control application on apricot trees of Hacıhaliloğlu cultivar which were eight years old in the first year of the study. Applications were made in the period when the leaves were separated from the fruit and when the fruit length was about 7-8 mm and the applications were compared in terms of their effects on fruit drop, yield, pomological properties, antioxidant activity and total phenolic compound contents. As a result of the study, it was found that the applications made had an effect on all the parameters examined. The fruit drop rate in the first year of the study ranged from 1.50 to 18.35%, in the second year it ranged from 13.17% to 26.48%, and in both years, the control application was the application in which the fruit drop occurred at the highest level. As a result the study, it was concluded that organic preparations applied as part of the study can be used in order to increase the yield by decreasing the fruit drop and at the same time to improve the fruit quality.

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