Table 3.
Carotenoids, chlorophylls, phenols contents, chlorophylls-to-carotenoids ratio (Chlor/Carot), and stability against oxidation (Stability) in extra virgin olive oils obtained from olive (cv Leccino) orchard fertilized (T) and unfertilized (NT) with Se under well-watered (NDS) and drought stress (DS) conditions.
| Year | Irrigation | Treatment | Carotenoids | Chlorophylls | Phenols | Stability | Chlor/Carot |
|---|---|---|---|---|---|---|---|
| μg g-1 | h | ||||||
| 2014 | DS | NT | 10.6 (0.3)b | 14.2 (0.2)c | 287 (6)b | 12.4 (0.2)b | 1.34 (0.04)bc |
| 2014 | DS | T | 13.0 (0.2)a | 19.6 (0.3)a | 343 (9)a | 14.3 (0.2)a | 1.52 (0.04)b |
| 2014 | NDS | NT | 7.7 (0.1)c | 14.3 (0.3)c | 257 (7)c | 11.0 (0.3)c | 1.87 (0.05)a |
| 2014 | NDS | T | 13.7 (0.4)a | 15.8 (0.4)b | 274 (4)bc | 11.7 (0.2)bc | 1.16 (0.05)c |
| 2015 | DS | NT | 11.7 (0.3)c | 15.6 (0.2)c | 246 (5)c | 11.8 (0.1)b | 1.34 (0.03)b |
| 2015 | DS | T | 14.0 (0.3)b | 21.7 (0.3)a | 296 (4)a | 13.6 (0.1)a | 1.55 (0.01)a |
| 2015 | NDS | NT | 9.2 (0.1)c | 14.5 (0.2)d | 245 (6)c | 10.0 (0.1)c | 1.58 (0.02)a |
| 2015 | NDS | T | 15.5 (0.4)a | 18.5 (0.2)b | 262 (3)b | 11.1 (0.2)b | 1.19 (0.02)c |
Values are means with SEs in parentheses (n = 3). In each column and for each year, different letters indicate significant differences among treatments at P < 0.05 using Tukey-HSD test.