GENETIC RESOURCES AND CROP EVOLUTION, 2024 (SCI-Expanded)
The Apricot (Prunus armeniaca) is a member of the Rosaceae family and the Prunoideae subfamily. The aim of this study was to determine the relationships between leaf nutrient content, biochemical content and antioxidant activity of 31 different table and dried apricot cultivars grown in the Central Anatolia region of T & uuml;rkiye using multivariate analysis methods. The study was conducted in 2023 and 2024 and analyzed with the average of the 2 years. Similarities and differences between the apricot cultivars were determined using the Tukey comparison test, and statistically significant differences were detected between the cultivars (p < 0.05). The nutrient analyses carried out on the leaves of the '& Scedil;ekerpare' cultivar revealed Al (34.35 +/- 0.69 mg kg-1), B (18.92 +/- 1.44 mg kg-1), Ca (7524.20 +/- 14.35), Cu (2.06 +/- 1.27 mg kg-1), Fe (38.59 +/- 7.70 mg kg-1), Mg (1829.45 +/- 20.65 mg kg-1), Mn (8.40 +/- 1.63 mg kg-1), Na (172.75 +/- 11.64 mg kg-1), P (1069.33 +/- 6.49 mg kg-1), S (374.75 +/- 8.90 mg kg-1), Zn (9.20 +/- 1.29 mg kg-1) were the highest nutrients; in the 'Cebas Red' cultivar, the nutrient K (1725.61 +/- 14.62 mg kg-1) was the highest; in the 'Orange Ruby' cultivar the nutrient Mg (0.63 +/- 0.05 mg kg-1) was the highest. Total phenols, total flavonoids and antioxidant activity were highest in the 'Cebas Red' (59.4 +/- 3.05 mg GAE/100 g), 'Sak & imath;t 2' (17.07 +/- 4.15 mg QE/100 g) and 'Ordubat' (84.36 +/- 6.26%). In the principal component analysis, the significance level of the eigenvectors for each variable was determined to be >= 0.29, which means that the first 9 components explained 98.79% of the total variance. The correlation analysis showed that the association between the leaf nutrient contents was both statistically positive and significant. The same result was found for the correlation between total phenolics total flavonoids and antioxidant activity. According to the heat map analysis, the nutritional contents of the leaves were in one group, while the total phenols, total flavonoids and antioxidant activity were in a separate group. In the heat map of cultivars, 'Orange Ruby' was in one group while the other cultivars were in another group. The findings will make an important contribution to future research on similar topics.