There are many factors that may affect the results of disc-diffusion test, e.g., volume of essential oil placed on paper discs, thickness of agar, diffusion ability of oil in agar, and variation of essential oil concentration
There are many factors that may affect the results of disc-diffusion test, e.g., volume of essential oil placed on paper discs, thickness of agar, diffusion ability of oil in agar, and variation of essential oil concentration