Influence of the Rootstock and the Ploidy Level of the Scion and the Rootstock on Sweet Orange (Citrus sinensis) Peel Essential Oil Yield, Composition and Aromatic Properties

Rootstock is widely used for the cultivation of citrus fruits because it brings resistance or tolerance to diseases environmental constrains and modulates fruit quality. Polyploidization a widespread improvement strategy in citrus. The objective was evaluate effect rootstock ploidy level on composition essential oils. Two trials were conducted, one displaying ‘Navelina’ orange grafted three rootstocks second combining two levels (di tetraploid) scion (‘Pineapple’ orange) (‘Carrizo’ citrange). peel oil (PEO) analyzed by gas chromatography coupled with mass spectrometry, panel experts its flavor variation triangle test approach. influenced yield PEO, low impact flavor. Neither nor affected PEO yield. Only tetraploid significantly modified composition, reducing oxygenated compound fraction. Sensitive significant differences detected between reference sample (diploid scion–diploid rootstock) other combinations. These results suggest that profiling an aromatic flavor, key element as scion.