Table 5.
Diameter of inhibition zone (mm) mean ± SD |
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---|---|---|---|---|---|
Treatment | Concentration (µg/disc) | 100 µg/disc | 200 µg/disc | 300 µg/disc | 400 µg/disc |
Bacteria | B. subtilis | 12.06 ± 0.115a | 13.10 ± 0.173a | 13.66 ± 0.577a | 14.33 ± 1.050a |
E. coli | 12.06 ± 0.115a | 12.16 ± 0.152a | 13.13 ± 0.230a | 15.13 ± 0.230a | |
P. fluorescens | 12.16 ± 0.288a | 12.33 ± 0.577a | 13.66 ± 0.577a | 15.00 ± 1.000a | |
Fungi | C. albicans | 12.33 ± 0.577 | 12.93 ± 0.404 | 13.43 ± 0.513a | 14.66 ± 0.577a |
F. solani | 11.93 ± 0.378a | 12.83 ± 0.568 | 14.13 ± 0.907a | 15.30 ± 0.264a | |
F. oxysporium | 12.33 ± 0.577 | 14.26 ± 0.461a | 14.13 ± 0.230a | 15.33 ± 1.050a | |
R. solani | 11.66 ± 0.577 | 12.26 ± 0.461a | 15.33 ± 0.577a | 16.16 ± 0.208a | |
P. ultimum | 10.00 ± 1.00a | 11.66 ± 0.577a | 12.26 ± 0.251a | 14.33 ± 0.321a |
Data are mean± SD of triplicate reading of the inhibition zone diameter.
aSignificantly different from the control at p ≤ 0.05 using one-way analysis of variance test.