Physiological studies of Sclerotinia sclerotiorum causing stem rot of fennel (Foeniculum vulgare Mill.).

Glucose sodium chloride agar medium supported maximum growth and sclerotia formation of the fungus. In liquid medium study, Glucose sodium chloride was also produced highest number of sclerotia with maximum dry weight, while Richard's medium supported maximum dry mycelial weight. The fungus grew best at pH 4.0, while sclerotia formation was found best at pH 6.0. The maximum fungal mycelial growth was observed at 25°C temperature, while higher number of sclerotia and sclerotial dry weight was recorded at 15°C temperature.