Table 5.
Virulence differentiation of the two preponderant Bipolaris species.
| Species | Virulence Level | No. of Isolate | Incubation Period (h) | Average Lesion Length (mm) |
|---|---|---|---|---|
| B. maydis | High virulence | 17 | 24 | 6.5 ± 0.36b (6–8) |
| Moderate virulence | 11 | 24 | 4.8 ± 0.34c (4.3–5.2) | |
| Weak virulence | 8 | 48 | 3.1 ± 0.38e (2.7–3.8) | |
| B. zeicola | High virulence | 7 | 24 | 7.6 ± 0.99a * (6.2–8.9) |
| Moderate virulence | 10 | 48 | 4.3 ± 0.30d (4–5.1) | |
| Weak virulence | 14 | 72 | 2.5 ± 0.36f (1.8–2.9) |
Note: * The mean difference is significant at the 0.05 level; a–f: the values with the same letter in a column do not significantly differ according to Duncan’s multiple range test.