Source of variation | df | Diesel oil | SAE 40 used oil | SAE 50 used oil | |||
p | f | p | f | p | f | ||
Bacterial strain | 2 | 0.002 | s | 0.010 | s | 0.009 | s |
Incubation period | 3 | <0.0001 | s | <0.0001 | s | <0.0001 | s |
Bacterial strain x Incubation period | 11 | <0.0001 | s | <0.0001 | s | <0.0001 | s |