IMPACTOF COB HUSKS AND MATURITY PERIOD ON AFLATOXIN CONT AMINATION IN PREHARVEST KHARIF MAIZE
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Authors
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K. S. BILGRAMI, A. MASOOD, K. S. RANJAN AND A. K. SINHA
Uniuersity Department of Botany, Bhagalpur University, Bhagalpur 812 007
Keywords:
Cob husks, Maturity period, Aflatoxin, Pre harvest, Kharij maizeAbstract
Three common maize cultivars, viz., Suwan Composite (SC), Diara Composite (DC) and M., having different maturity periods and husk characteristics, were evaluated regarding aflatoxin contamination during 1986 and 1987 kharij seasons. The variety SC, which has tight, incomplete husk and intermediate maturity period, showed maximum natural contamination of aflatoxins. Artificial inoculation 'of toxigenic strain of Aspergillus jlauus enhanced aflatoxin level in all the three cultivars. The variety M., having tight, complete husk and longer maturity period (105 days) was most susceptible (1172.67 µ1g/kg in 1986 and 1032.30 µ1g/kg aflatoxin in 1987). The maize variety DC with loose, complete husk and 80 days of maturity was comparatively less prone to contamination both under natural and inoculated states.
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