Table 2.
Effect of pure botanical active compounds and their mixtures on the growth rate of Rhizoctonia solani and mycelial growth inhibition (MGI).
| Botanical Active Compounds | Dose µL/mL | GR (R2) | d.s. | Mean Ø Day 6 (mm) | MGI (%) |
|---|---|---|---|---|---|
| Control | - | 9.89 (0.998) | a | 56.61 | |
| Eugenol | 300 | 5.54 (0.872) | b | 28.99 | 48.78 |
| Carvacrol | 300 | 0 | b | 0 | 100 |
| 200 | 0 | b | 0 | 100 | |
| 150 | 0 | b | 0 | 100 | |
| 100 | 0 | b | 0 | 100 | |
| Cinnamaldehyde | 300 | 1.80 (0.833) | d | 5.50 | 90.29 |
| 200 | 3.60 (0.955) | c | 18.80 | 66.79 | |
| 150 | 5.73 (0.918) | b | 30.23 | 46.60 | |
| 100 | 7.40 (0.945) | b | 38.75 | 31.55 | |
| Thymol | 300 | 0 | b | 0 | 100 |
| 200 | 0 | b | 0 | 100 | |
| 150 | 0 | b | 0 | 100 | |
| 100 | 0 | b | 0 | 100 | |
| Mixtures | |||||
| Eug + Thy | 150 + 150 | 0 | c | 0 | 100 |
| Thy + Car | 150 + 150 | 0 | c | 0 | 100 |
| Car + Cin | 150 + 150 | 0 | c | 0 | 100 |
| Cin + Eug | 150 + 150 | 3.31 (0.957) | b | 9.93 | 82.47 |
| Car + Eug | 150 + 150 | 0 | c | 0 | 100 |
| Thy + Cin | 150 + 150 | 0 | c | 0 | 100 |
GR: growth rate (R2); d.s.: homogeneous groups due to significant differences; Eug: eugenol; Thy: thymol; Car: carvacrol; Cin: cinnamaldehyde.