Some observations on the behaviour of geotrichum candidum and fusarium oxysporum in culture media based on domestic wastes

In the course of an isolation procedure some consistent gap was observed between Geotrichum candidrum and Fusarium oxysporum in overgrown dilution plates. This behaviour was investigated. G. candidum and F. oxysporum were isolated in pure culture. The organisms were plated diametrically, 4cm apart in 9cm Petri dishes, on ripe plantain peel agar, unripe plantain peel agar, cassava peel agar, sweet potato peel agar, yam peel agar, orange peel agar and cocoyam peel agar. The plates were inocubated at 25°C for 15 days. Growth towards the centre and the gap between the two fungi were measured. Geotrichum candidum grew better than Fusarium oxysparum on all the media except on cassava peel agar where F. oxysporum grew better. The gap between the organisms was affected by media. The gap may be due to some unascertained factor(s). No clear zone of influence was observed.