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Factors such as pollinators, pollen quality, pollinator variety, high temperatures, and nutrients affect the fruit set in sweet cherry trees. In this study, the effects of different doses of N, P, and K applied from the soil on fruit set of sweet cherry were investigated. Flower bud minerals (N, P, K, Ca, Mg, Fe, Cu, Mn, Zn, and B), fruit set ratios (FSR), and yield values were determined to compare treatments for 3 years (2015–2017). FSR (%) and yield (kg/tree) values ​​ranged between 14.31–21.76 and 11.11–14.88 for N, 11.94–22.64 and 11.23–14.82 for P, 12.38–17.39 and 12.67–13.68 for K, respectively. N affected fruit bud N, Mg, Fe, Mn, and B concentrations, FSR and yield. Parameters other than FSR increased with increasing N doses and the highest values ​​were obtained from the highest N treatment. FSR of the highest N dose was the same as the control treatment, but lower in the other treatments. P affected fruit bud P and Mg concentrations, FSR and yield. Fruit bud P and Mg concentrations increased as compared to the control treatment. The change in FSR and yield values ​​could not be associated with the application dose, but showed linear changes with each other. K was effective only on FSR, the lowest values ​​were obtained at the highest dose, while it was similar at the other doses. Fruit set ratio of sweet cherry trees under present experimental conditions could not be associated with the change in fruit bud nutrients due to N, P and K fertilization. [ABSTRACT FROM AUTHOR]

This study was carried out to evaluate quality, yield and phenology of some sweet cherry cultivars with different maturation periods in Isparta-Egirdir conditions. The study was carried out between 2000 and 2011, on Veysel, Précoce Bernard, Star, Venus, Mechlain Haimer, Summit, Techlovan, Fercer Arcina, Sylvia, Noire de Meched, Oktavia, Belge, 0900 Ziraat, Kordia, and Ferbolus. Venus, Bernard, Techlovan and Star cultivars were identified as the earliest blooming. Oktavia, Belge, Kordia and 0900 Ziraat cultivars were found to be the latest blooming cultivars. Generally; Veysel, Bernard and Star come to harvest maturity first. Venus, Mechlain Haimer, Summit, Techlovan, Fercer Arcina, Sylvia were found to be middle season cultivars, while N. De Meched, Oktavia, Belge, 0900 Ziraat, Kordia and Ferbolus were found to be the latest. Veysel early cherry cultivar were determined to be the most productive one, while late cultivar N. De Meched and mid-season cultivar Techlovan were also found to be very efficient. In terms of fruit sizes; early sweet cherry cultivar P. Bernard, mid-season cultivar Summit and late season cultivar 0900 Ziraat gave the biggest fruits. [ABSTRACT FROM AUTHOR]