Table 1.
Effects of five concentrations of three surfactants (Tween20, Tween80 and Breakthru ® ) on the radial growth rate (K r ± se) of three isolates (7320, 7569 and 7771) of Beauveria bassiana.
Surfactant | Surfactant concentration (%) | Radial mycelial growth rate (K r in mm day −1 ) ± se | ||
---|---|---|---|---|
|
||||
Isolates | ||||
|
||||
7320 | 7569 | 7771 | ||
Tween20 | 0 | 1.08 ± 0.08 f | 1.46 ± 0.06 f | 1.13 ± 0.08 b |
0.1 | 1.02 ± 0.07 def | 1.17 ± 0.1 de | 1.54 ± 0.3 c | |
0.5 | 0.8 ± 0.09 ab | 1.22 ± 0.17 e | 1.11 ± 0.09 b | |
1 | 0.9 ± 0.09 bcd | 1.08 ± 0.13 cd | 1.13 ± 0.09 b | |
5 | 0.8 ± 0.09 ab | 0.88 ± 0.09 b | 1.10 ± 0.11 b | |
Tween80 | 0 | 1.08 ± 0.08 f | 1.46 ± 0.06 f | 1.13 ± 0.08 b |
0.1 | 0.96 ± 0.1 cdef | 1.07 ± 0.13 c | 1.07 ± 0.09 ab | |
0.5 | 1.04 ± 0.12 def | 1.12 ± 0.07 cd | 1.05 ± 0.07 ab | |
1 | 1.06 ± 0.12 ef | 1.13 ± 0.1 cd | 1.11 ± 0.09 a | |
5 | 0.87 ± 0.1 bc | 1.12 ± 0.13 cd | 0.86 ± 0.15 ab | |
Breakthru ® | 0 | 1.08 ± 0.08 f | 1.46 ± 0.06 f | 1.13 ± 0.08 b |
0.1 | 0.96 ± 0.12 cdef | 1.26 ± 0.14 e | 1.01 ± 0.09 ab | |
0.5 | 1.04 ± 0.13 def | 1.11 ± 0.13 cd | 0.86 ± 0.1 ab | |
1 | 0.92 ± 0.14 bcde | 1.13 ± 0.13 cd | 0.84 ± 0.08 ab | |
5 | 0.69 ± 0.09 a | 0.72 ± 0.1 a | 0.68 ± 0.06 a | |
F-ratio | 55.28 | 67.15 | 34.23 | |
p-value | < 0.001 | < 0.001 | < 0.001 | |
LSD | 0.07 | 0.053 | 0.06 | |
%CV | 11.5 | 7 | 6.5 | |
Effect | ** | ** | ** |
Means followed by the same letter within the same column are not significantly different (p > 0.05); F and p values after square root-arcsine transformation;
Significant at p ≤ 0.001.