Table 6.
Percentage of Inhibition (PI, %) produced by the tested EOs in vapor phase against Monilinia laxa.
| Essential Oil | PI (%) exerted by EO-VOCs on Monilinia laxa mycelial growth 5 days post inoculation. EO concentrations are expressed in μL/L | |||||||
|---|---|---|---|---|---|---|---|---|
| 2.82 | 5.64 | 11.36 | 22.73 | 45.45 | 90.91 | 181.82 | 363.64 | |
| O. vulgare 1 | 94.4 ± 3.0 b, A | 96.6 ± 0.4 ab, A | 100 a, A | – | – | – | – | – |
| O. vulgare 2 | 85.8 ± 11.0 a, AB | 93.3 ± 0.9 a, A | 100 a, A | |||||
| T. vulgaris 1 | 72.0 ± 4.7 c, BC | 89.0 ± 1.7 b, A | 100 a, A | – | – | – | – | – |
| T. vulgaris 2 | 72.2 ± 3.8 c, BC | 91.8 ± 2.0 b, A | 100 a, A | – | – | – | – | – |
| T. serpyllum | 70.5 ± 4.1 c, C | 85.2 ± 1.7 b, AB | 98.5 ± 1.3 a, A | 100 a, A | – | – | – | – |
| M. alternifolia 1 | 10.8 ± 3.0 e, EF | 17.4 ± 3.2 e, D | 27.2 ± 2.1 d, BC | 44.6 ± 0.8 c, BC | 67.3 ± 4.8 b, C | 93.5 ± 0.6 a, BC | 100 a | – |
| M. alternifolia 2 | 22.2 ± 2.2 e, E | 37.7 ± 15.8 de, C | 27.0 ± 4.0 e, BC | 57.3 ± 12.6 cd, B | 76.2 ± 7.8 bc, B | 92.7 ± 1.2 ab, C | 100 a | – |
| L. officinalis | 6.6 ± 7.9 d, F | 13.2 ± 0.9 cd, D | 23.5 ± 3.3 c, BCD | 53.3 ± 11.9 b, BC | 67.1 ± 1.1 b, C | 97.0 ± 0.4 a, ABC | 100 a | – |
| L. hybrida | 5.0 ± 0.8 f, F | 11.1 ± 2.4 e, D | 16.9 ± 2.4 d, CD | 39.3 ± 0.5 c, C | 77.6 ± 2.6 b, B | 98.5 ± 1.5 a, AB | 100 a | – |
| C. bergamia | 1.8 ± 3.2 e, F | 3.7 ± 2.4 e, D | 16.1 ± 2.8 d, CD | 17.4 ± 3.6 b, D | 31.1 ± 2.1 c, D | 72.5 ± 5.4 b, D | 100 a | 100 a |
| R. officinalis | 6.9 ± 4.1 e, F | 8.4 ± 3.9 e, D | 12.1 ± 0.8 de, D | 16.6 ± 2.8 b, D | 28.8 ± 1.6 c, D | 58.5 ± 3.2 b, E | 100 a | 100 a |
| C. zeylanicum | 0.0 ± 0.0 d, F | 4.8 ± 6.1 d, D | 31.2 ± 13.2 c, B | 52.8 ± 5.4 b, BC | 98.6 ± 1.1 a, A | 100 a, A | – | – |
| MIX | 55.0 ± 7.1 c, D | 71.4 ± 3.9 b, B | 94.8 ± 2.2 a, A | 100 a, A | – | – | – | – |
The results are expressed as the mean ± standard deviation, r=3. The statistical analyses were carried out using one-way analysis of variance (ANOVA), followed by Tukey’s post hoc test (p ≤ 0.05) or non-parametric Kruskal–Wallis H-test, followed by Mann-Whitney U-test (p ≤ 0.05). Different lower-case letters indicate statistical differences between concentrations of the same EO (horizontal rows). Different upper-case letters indicate statistical differences between the same concentration of different EOs (vertical columns).