## 4 Arinto
The corresponding loadings plot (Figure 7d) showed that this separation was due to the higher sugar and phenolic contents  
Figure 6: ASCA scores plot for (**a**) harvest factor and (**b**) parcel factors, and the corresponding variable loadings plot (**c**,**d**), respectively, obtained for Sauvignon Blanc, at technological maturity (significance test reported on Table 4). Each variable is normalized separately by dividing by its standard deviation value. and antiradical activity, as well as higher varietal grapes components determined on the glycosidically linked fraction of BA-VA2 grapes compared to BA-SM1 grapes, suggesting higher aroma potential of BA-VA2 [61]. Moreover, PC2 allowed distinguishing BA-VA1 (PC2 negative) from BA-VA2 (near to origin) (Figure 7b). The loadings plot (Figure 7d) showed that this differentiation along the PC2 was mainly related to the higher BA-VA1 monoterpenic content, including \(\alpha\)-pinene, limonene, linalool oxide, and \(\beta\)-citronellol. These compounds can contribute characteristic notes: \(\alpha\)-pinene has fresh and citrus notes; limonene has lemon, orange, and sweet notes; linalool has fruity, floral, and rosy notes; and \(\beta\)-citronellol exhibits rose and lemon notes [58]. Considering the characteristics of Baga parcels (Table 1), soil type is the main factor that influences Baga grapes' composition, which is strongly associated with the water status [9]: clay-calaceous (BA-VA2) and clayey (BA-VA1) soils seem to favor the formation of the  
Figure 7: ASCA scores plot for (**a**) harvest and (**b**) parcel factors, and the corresponding variable loadings plot (**c**,**d**), respectively, obtained for Baga, at technological maturity (significance test reported on Table 4). Each variable is normalized separately by dividing by its standard deviation value. varietal volatile and phenolic compounds and also the increase of the antiradical activity. It was already shown that soils with higher water-holding capacity than sand-based ones increased Baga sparkling wines volatiles [3] and Agiorgitiko oenological potential by increasing the concentration of anthocyanins and total phenolics in the berries [68]. Taken together, these data provide evidence that Baga variety exhibits a degree of plasticity within its secondary metabolites and responds physiologically to the soil type by modulating metabolites with potential aroma, color, astringency, and antioxidant properties. * **Castelao** The effect of the harvest year on Castelao grape composition accounted for 66.7% of the total data set variance (Table 4). According to the scores plot (Figure 8), first PC allowed distinguishing the 2010 harvest, placed in PC1 positive, from the other two harvests (PC1 negative). The corresponding loadings plot (Figure 8c) showed that the separation of 2010 grapes was related to the higher pH and phenolic content of these grapes and, principally, with the higher volatile content, especially the monoterpene ones, which represented ca. 20% of the total volatiles, while in 2011 and 2012, this chemical family represented ca. 10% and 13%, respectively. Furthermore, PC2 allowed distinguishing 2012 (PC2 positive) from 2011 (PC2 negative) (Figure 8a). The loadings plot (Figure 8c) showed that the projection of 2011 in PC2 negative was mainly related to the lower values of almost all determined parameters compared to 2012, essentially oxygen-containing monoterpene compounds (both free and glycosidically linked fractions). Additionally, 2012 grapes (PC2 positive) exhibited higher titutable acidity and lower sugar content. These results revealed the high sensitivity of the Castelao variety to the different weather conditions of each year: 2010 moderate weather conditions (Figure 2) seem to be proper for Castelao development, thus potentiating aroma and astringency to the final wines. The opposite was observed for 2011 grapes. The scores plot for the factor parcel accounted for 15.5% of the total data set variance (Table 4, Figure 8b).