Table 3.
Effect of essential oil doses on the antifungal activity of volatile compounds: mycelial growth rate index (MGRI), the area under the mycelial growth curve (AUMGC), and percentage mycelial growth inhibition (PIMG) of G. citri-aurantii compared to the control (cm) in vitro.
| Essential Oil Samples | Doses (µL mL−1) | MGRI | AUMGC | PIMG |
|---|---|---|---|---|
| BRS Rainha willowleaf | 2 | 1.69 b * | 8.02 c | 28.22 a |
| 4 | 1.76 b | 8.46 bc | 24.48 a | |
| 8 | 1.73 b | 8.39 bc | 25.31 a | |
| 16 | 1.78 b | 8.52 bc | 23.23 a | |
| 32 | 1.94 ab | 7.69 c | 27.38 a | |
| Tween | 1.62 b | 9.00 b | 24.06 a | |
| Control | 2.2 a | 11.27 a | - | |
| CV (%) ** | 9.97 | 4.54 | 17.69 | |
| Murcott IAC 221 tangor | 2 | 1.69 a | 8.20 c | 16.75 a |
| 4 | 1.76 a | 8.46 bc | 12.92 ab | |
| 8 | 1.73 a | 8.39 c | 13.87 ab | |
| 16 | 1.78 a | 8.52 bc | 11.48 ab | |
| 32 | - | - | - | |
| Tween | 1.25 a | 9.54 b | 5.26 b | |
| Control | 1.73 a | 11.17 a | - | |
| CV (%) | 15.08 | 5.60 | 34.80 | |
| Rio IAC 194 Willowleaf | 2 | 2.03 a | 8.37 a | 4.08 a |
| 4 | 1.95 a | 7.79 a | 6.24 a | |
| 8 | 1.95 a | 8.19 a | 6.02 a | |
| 16 | 1.90 a | 7.69 a | 7.09 a | |
| 32 | 1.92 a | 7.86 a | 11.61 a | |
| Tween | 1.87 a | 7.95 a | 9.46 a | |
| Control | 1.80 a | 8.42 a | - | |
| CV (%) | 7.86 | 8.33 | 32.62 | |
| Late IAC 585 willowleaf | 2 | 1.67 ab | 9.32 b | 2.72 b |
| 4 | 1.83 a | 9.35 b | 5.44 b | |
| 8 | 1.87 a | 9.68 ab | 6.46 b | |
| 16 | 1.50 b | 6.25 c | 29.93 a | |
| 32 | 1.49 b | 5.84 c | 30.95 a | |
| Tween | 1.60 ab | 8.74 b | 6.42 b | |
| Control | 1.65 ab | 10.36 a | - | |
| CV (%) | 6.01 | 4.16 | 18.79 | |
| Pera IAC | 2 | 1.67 ab | 8.82 a | 2.72 b |
| 4 | 1.85 a | 8.45 a | 4.76 b | |
| 8 | 1.85 a | 8.16 a | 7.14 b | |
| 16 | 1.50 b | 5.96 b | 29.93 a | |
| 32 | 1.49 b | 5.64 b | 30.95 a | |
| Tween | 1.60 ab | 8.76 a | 4.76 b | |
| Control | 1.66 ab | 9.04 a | - | |
| CV (%) | 5.77 | 6.08 | 16.88 |
* The means in columns for each essential oil followed by the same letter do not differ according to the Tukey test at a significance level of 5%; ** Coefficient of variation.