Table 2.
Lesion diameter and disease severity evolution in citrus fruit treated with different concentrations of clove essential oil (CEO) infected with P. italicum at different days post inoculation (dpi).
| Index | DPI | Concentrations of CEO (%, v/v) | |||||
|---|---|---|---|---|---|---|---|
| 0.0 | 0.05 | 0.1 | 0.2 | 0.4 | 0.8 | ||
| Lesion diameter | 3 | 23.3 ± 1.33 a | 19.9 ± 0.99 b | 16.4 ± 1.07 c | 13.8 ± 0.92 d | 11.7 ± 1.57 e | 9.8 ± 2.10 f |
| 5 | 35.6 ± 1.71 a | 32.2 ± 1.03 b | 27.6 ± 1.26 d | 22.7 ± 1.16 d | 17.6 ± 1.07 e | 13.9 ± 1.66 f | |
| 7 | 58.9 ± 1.66 a | 56.1 ± 1.20 b | 47.8 ± 1.48 c | 38.4 ± 1.71d | 29.2 ± 1.40 e | 26.8 ± 1.69 e | |
| Disease severity | 3 | 46.9 ± 4.27 a | 42.5 ± 5.40 ab | 33.8 ± 3.23 b | 21.3 ± 2.88 c | 8.8 ± 3.23 d | 5.0 ± 3.53 d |
| 5 | 69.4 ± 5.15 a | 62.5 ± 5.40 a | 58.8 ± 6.61 ab | 48.1 ± 4.27 b | 23.8 ± 4.27 c | 22.5 ± 2.88 c | |
| 7 | 100 ± 0.00 a | 98.8 ± 2.50 a | 95.0 ± 4.56 a | 80.0 ± 4.08 b | 66.3 ± 3.23 c | 63.1 ± 6.25 c | |
Each value is the means of four replicates ± standard error (S.E.). Means within row with the different letters (a, b, c, d, e, and f, respectively) for each time point (day 3, day 5 and day 7) indicate significant difference (p < 0.05) among different concentrations of CEO by Tukey HSD test.