12. Ulusal Tarım Kongresi, İzmir, Türkiye, 28 - 30 Kasım 2025, ss.1, (Özet Bildiri)
This study was
conducted to investigate the effects of yeast (Saccharomyces cerevisiae)
application on leaf nutrient content in 25-year-old '0900 Ziraat' cherry trees
grown in Sultandağı, Afyonkarahisar. The experiment included four treatments:
control, 5 ppm, 10 ppm, and 15 ppm applied to the soil within the tree crown
projection. Leaf analysis revealed that Nitrogen (N), Calcium (Ca), Magnesium
(Mg), and Iron (Fe) levels generally increased with higher yeast doses compared
to the control. Potassium (K) reached its peak at 10 ppm. Conversely,
Phosphorus (P) and Copper (Cu) levels decreased at the highest dose (15 ppm).
Zinc (Zn) showed a decline at low doses but recovered at higher concentrations.
Results indicate that S. cerevisiae can serve as a biofertilizer alternative to
enhance leaf nutrient status in sweet cherry. However, repeated trials in
different locations are recommended for consistency in elements like phosphorus.
This study is a part of the master thesis of Hamide AK which was
supervised by Volkan Okatan. The study was supported by Scientific Research
Projects Coordination Unit of Eskisehir Osmangazi University, Project code:
FYL-2025-3451.