Vol. 5, Issue 5 (2017)
Effect of microwave radiation on seed mycoflora of sunflower at different storage periods
Author(s): Srinivas A, Pushpavathi B, Lakshmi BKM and Shashibushan V
Abstract: The effect of microwave radiation (1200W, 2450 MHz) for 10, 20, 30, 40, 50 and 60s on seed mycoflora of sunflower at different storage periods (upto 3 months) was studied. A total of 16 seedborne fungi belonging to 13 genera viz., Alternaria sp., Macrophomina phaseolina, Aspergillus flavus, Aspergillus niger, Aspergillus ochraceus, Aspergillus ustus, Emericella nidulans, Fusarium sp., Epicoccum sp., Cladosporium sp., Curvularia sp., Chaetomium sp., Drechslera sp., Rhizopus sp., Trichoderma sp. and Penicillium sp. were recovered from untreated and treated seeds at different storage periods. Among the treatments evaluated, exposing the seeds to microwave radiation for 60s (29.50%) was found significantly superior when compared to other treatments followed by 50s (35.72%), 40s (39.75%) and the least (70.82%) was found with 10s. The per cent seed infection by different seed mycoflora increased with the increase in storage period. However, there was a gradual decline in field mycoflora viz., Alternaria sp., Macrophomina phaseolina, Fusarium sp. and Drechslera sp. and gradual increase in storage mycoflora viz., Aspergillus flavus, Aspergillus niger, Cladosporium sp., Curvularia sp. etc. was found with the increase in storage period. Effect of microwave radiation on sunflower seed quality parameters was also tested and results indicated that microwave radiation can’t be used as seed treatment in sunflower.
Pages: 1363-1367 | 713 Views 50 Downloads
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How to cite this article:
Srinivas A, Pushpavathi B, Lakshmi BKM, Shashibushan V. Effect of microwave radiation on seed mycoflora of sunflower at different storage periods. Int J Chem Stud 2017;5(5):1363-1367.
