Table 3. Mahalanobis distances among the clusters of cultivar calculated for each PCA model including a single cultivar (with reference to the PCAs of Figs. 4A, 5A, 6A and 7A) in the two harvesting years.
To obtain 99% cumulative variance for each calculated for each PCA model including a single cultivar, a different number of PCs was used.
| Mahalanobis distances (MAH) | ||
|---|---|---|
| Cultivar | 99% variance (n. PCs) | 2PCs (% variance) |
| Cima di Mola | 7.63 (16) | 4.09 (77.2) |
| Coratina | 4.44 (21) | 0.57 (58.9) |
| Ogliarola | 10.43 (18) | 1.85 (64.9) |
| Peranzana | 6.93 (19) | 2.31 (70.7) |