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    Fruit Yield and Quality Performance of Low Chilling Nectarine Cultivars under Mediterranean Climate
    (Tarbiat Modares Univ, 2024) Caliskan, O.; Kilic, D.; Bayazit, S.
    This study was carried out to investigate fruit yield and quality characteristics among new nectarine cultivars grown in the eastern Mediterranean region of Turkey. 'Gardeta', 'Gartario', and 'Garofa' nectarine cultivars were cultivated on 'GN15' rootstock. The flowering stage, fruit set percentage, yield, and fruit quality properties of these cultivars were investigated between 2018 and 2021. During the study, chill requirements ranged between 391 and 600 chilling hours and between 207 and 361 chill units in the area, and huge values were obtained for the average initial fruit set above 60% and the final fruit set above 45%. 'Gardeta' had the highest cumulative yield per tree (80.15 kg tree-1) and cumulative yield per hectare (133.04 tons ha(-1)). The fruit size, Total Soluble Solids (TSS) content, and fruit coloration were homogeneously distributed in all three cultivars. In addition, the Flowering (F) and Initial Fruit Set (IFS) characters were negatively correlated with Fruit Weight (FW), Fruit Length (FLE), and Fruit Diameter (FD). As a result, the 'Gardeta' was found remarkable with late flowering, the highest yield, and superior fruit quality characteristics such as size, red skin color, and high TSS/total acidity values in the eastern Mediterranean region of Turkey. In addition, the date of Full Flowering (FF) and Fruit Firmness (FF) were negatively correlated with fruit Skin color L* (SL), C (SC), and h degrees (SH) variables. The results demonstrated that the new nectarine cultivars used here showed changes in yield parameters and fruit quality attributes depending on the genotypic and environmental effects.