Table 2.
Effect of different concentrations of aqueous extracts of R. vesicarius and Z. spina-christi on mycelial growth diameter (mm) of selected phytopathogenic fungi on Czapak Dox agar medium after 7 days of incubation at 25 °C.
| Extract Conc. (mg/ml) |
Helminthosporium rostratum |
Alternaria brassicae |
Fusarium oxysporum |
Rhizoctonia solani |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Growth (mm) | Inhibition % | Growth (mm) | Inhibition % | Growth (mm) | Inhibition % | Growth (mm) | Inhibition % | ||
| R. vesicarius | 0 | 8.50a ± 0.00 | 0 | 7.78 a ± 0.07 | 0 | 8.50 a ± 0.00 | 0 | 8.50 a ± 0.00 | 0 |
| 10 | 6.68b ± 0.88 | 21.41 | 7.42 a ± 0.10 | 4.63 | 5.45b ± 0.23 | 35.88 | 8.37 a ± 0.07 | 1.53 | |
| 25 | 5.10c ± 0.61 | 40.00 | 7.40 a ± 0.21 | 4.88 | 4.17c ± 0.24 | 50.94 | 8.35 a ± 0.08 | 1.76 | |
| 50 | 4.20c ± 0.03 | 50.59 | 7.37 a ± 0.13 | 5.27 | 4.02c ± 0.02 | 52.71 | 8.35 a ± 0.08 | 1.76 | |
| LSD 0.05 | 1.007 | --- | 0.452 | --- | 0.538 | --- | 0.207 | --- | |
| Z. spina-christi | 0 | 8.50 a ± 0.00 | 0 | 7.45 a ± 0.03 | 0 | 8.50 a ± 0.00 | 0 | 8.50 a ± 0.00 | 0 |
| 10 | 6.43b ± 0.41 | 24.35 | 7.45 a ± 0.03 | 0.00 | 8.50 a ± 0.00 | 0.00 | 8.50 a ± 0.00 | 0.00 | |
| 25 | 3.95c ± 0.08 | 53.53 | 6.78b ± 0.14 | 8.99 | 7.97 ab ± 0.28 | 6.24 | 8.12b ± 0.07 | 4.47 | |
| 50 | 3.17 d ± 0.18 | 62.71 | 4.73c ± 0.13 | 36.51 | 7.65b ± 0.18 | 10.00 | 4.70c ± 0.10 | 44.71 | |
| LSD 0.05 | 0.739 | --- | 0.322 | --- | 0.548 | --- | 0.201 | --- | |
Data represented as mean ± standard error. Means in the same column followed by the same letter are not significantly different based on LSD at p = 0.05 according to Duncan’s multiple range test.