Studies on physicochemical and fungal diversity from rhizosphere soils of different Chilli Field
Beatrice Florence Febronia S, Dr. Santhi G
Rhizosphere soil samples were collected from different chilli field of various Districts, Tamilnadu. A soil dilution plate method was used for isolation of fungi on Potato Dextrose Agar (PDA) media. Identification and characterization was done with the help of authentic manuals of fungi. Soil samples were also characterized for physicochemical properties such as pH, moisture content, N, P, K, Organic Carbon and Sulphur. Overall, the microbial and physicochemical indicators showed that the chilli field soil needs to be supplemented with soil nutrients. A total 15 species belonging to 10 genera were isolated and identified which are parasitic, saprophytic and free-living fungi including pathogenic species.Alternaria, Aspergillus, Penicillium, Rhizoctonia and Fusarium were predominant genera. Curvularia, Mucor species, Rhizopus, Pythium and Phytophthora were the most frequently isolated genera. Otherwise, Rhizoctonia solani may cause damping off disease and reduce the production of chilli significantly.