Influence of Wild Olive (<i>Olea europaea</i> L<i>. </i>var.<i> sylvestris</i>) Rootstocks on Leaf Nutrient Composition and Nutritional Balance of Commercial Olive Cultivars
APPLIED FRUIT SCIENCE, cilt.68, sa.5, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 68 Sayı: 5
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s10341-026-02006-9
- Dergi Adı: APPLIED FRUIT SCIENCE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Environment Index, Food Science & Technology Abstracts
- Erciyes Üniversitesi Adresli: Evet
Özet
Rootstocks, whose use is important in modern fruit growing, have become significant in olive growing due to their ability to regulate tree development, provide tolerance to biotic and abiotic stress conditions, and improve fruit yield and quality. Wild olive (Olea europaea L. var. sylvestris), locally known as "delice," is a promising rootstock candidate due to its wide genetic diversity and natural resistance to biotic and abiotic stresses. This study was conducted to determine the effects of six different wild olive rootstock (KLD-49, KLD-74, KLD-76, KLD-77, KLD-84, and KLD-120) candidates on leaf nutrient content and plant nutritional balance (deviation from optimum percentage [DOP] index) in nine commercial olive varieties ('Arbequina,' 'Manzanilla,' 'Gemlik,' 'Ayval & imath;k,' 'Memecik,' 'Kilis,' 'Nizip,' 'Sultani,' and 'E & scedil;ek'). The findings show that rootstock & times; variety combinations had statistically significant effects on leaf mineral composition. In terms of macroelements, the KLD-84/'Arbequina' combination exhibited the highest nitrogen content (2.58%), while the KLD-49/'Memecik' (1.37%) and KLD-120/'Nizip' (2.46%) combinations showed high values for potassium and calcium accumulation. Based on microelement content, the KLD-77 rootstock exhibited strong root physiology, supporting the uptake of phosphorus, magnesium, zinc, and manganese. Sigma DOP index values ranged from 238.92 to 723.58, and the KLD-120/'Manzanilla' combination had the most balanced nutritional profile. Overall, KLD-76 and KLD-74 rootstocks exhibited the lowest average Sigma DOP index, demonstrating the most balanced nutritional profile. In some varieties grafted onto the KLD-120 rootstock, cadmium reached a level (0.51 ppm) that could pose a phytotoxicity risk, while in the KLD-77/'Ayval & imath;k' combination, nickel accumulation (15.46 ppm) approached the toxic threshold. The results demonstrated that the mineral uptake capacities of wild olive rootstocks vary widely across varieties, and that rootstock selection is a critical factor for nutrient management in sustainable olive cultivation. Wild olive rootstocks are considered strategically important for developing new production systems with high nutrient demand and resistance to stress conditions.