Abstract
In this study, Fusarium moniliforme causal organism of Bakanae disease has been isolated from infected rice seeds variety Pusa Basmati-1121 by using blotter technique. The effects of temperature, pH and carbon source on radial growth rate were assessed on potato dextrose broth medium. Precise characterisation of the growth conditions for such a fungal pathogen has an evident interest to understand and to prevent spoilage of rice crops. Study was carried out to check the effect of temperature (15-50 °C), pH (2-10), and different carbon sources (glucose, dextrose, sucrose, rice husk and sugarcane bagasse) on the growth Fusarium moliniforme. Optimum temperature and pH for growth was 20 °C and 5.0 with maximum dry mycelium weight and sporulation i.e. 2.168 gm 1.806 million spores / 100ml respectively. Maximum growth was observed when rice husk was used as sole carbon source (2.432 gm and 1.68 million spore/ 100 ml) however maximum sporulation (0.984 million spore/ 100 ml) was achieved when sugarcane bagasse was used as sole carbon source.
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