Effect of Temperature on Dynamics of Storage Fungi of Oil Seeds
Patel Vikas V*, Mishra US
Phytopathology Laboratory, Department of Botany, Bareilly College, Bareilly–243 001, (U.P.), India.
*Corresponding author, E-mail: firstname.lastname@example.org.
Colonization and survival of fungi on oil seeds during storage is mainly determined by prevailing temperature and moisture contents of the seeds. The present study deals with effect of temperature on dynamics of storage fungi of oil seeds. The seed mycoflora of two oil seeds viz-Sunflower (Var. Advanta, Krishna, Shakti) and Groundnut (Var. Kaberi, JL-24. ICGS-45) was studied by standard blotter method and Agar plate method. The dominant fungi detected on three varieties of sunflower were—Alternaria helianthi, Aspergillus niger and Fusarium oxysporum while , Aspergillus niger spp., Cercospora spp., Aspergillus flavus and Rhizopus spp. were predominantly isolated from selected varieties of ground nut. It was found that temperature invariably affected the dynamics of seed mycoflora of investigated seeds in the storage. The percentage incidence of storage fungi varied at different temperature. Maximum fungi colonized the seeds at 30°C. The number of storage fungi on tested seeds showed a marked increasing trend from 10°C-30°C but declined gradually at higher temperature (upto 40°C) in all the tested varieties. The storage of oil seeds below 10°C is recommended to prevent the seed spoilage by storage fungi.