Incidence of Aspergillus flavus L. Ex. Fries in groundnut (Arachis hypogaea L.) samples and its impact on nutritive value of kernels

Adiver, S.S. and Kumar, M.G.K. (2015) Incidence of Aspergillus flavus L. Ex. Fries in groundnut (Arachis hypogaea L.) samples and its impact on nutritive value of kernels. Karnataka Journal of Agricultural Sciences, 28 (2). pp. 224-227.

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Abstract

Aflatoxins are problematic in groundnut due to infection of Aspergillus flavus L. Ex. Fries. In this context survey was conducted in 14 districts of Karnataka, India to assess the severity of A. flavus. The results revealed high incidence in Belligatti (taluk and dist- Dharwad) when assessed on agar plate. It was also found high in two other samples (Davanagere and Tumkur) by subjecting to blotter test. In samples collected from market, higher incidence of A. flavus was observed in Dharwad and Hubli. Aspergillus flavus produced greenish to brownish colonies, the conidia were pyriform to globbose, varied in size (8 x 7 to 5 x 4 μm). The fungus produced larger colony on potato dextrose agar and smaller one on host extract agar. In inoculated seeds, the infection led to the reduction in sugars (reducing, non-reducing and total sugars), proteins, oil content and seed germination.

Item Type: Article
Uncontrolled Keywords: Aspergillus flavus, Colonies, Conidia, Groundnut, Nutritive value
Author Affiliation: Department of Plant Pathology, College of Agriculture, Dharwad University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
Subjects: Plant Protection
Divisions: Groundnut
Depositing User: Mr B Krishnamurthy
Date Deposited: 06 Oct 2015 10:53
Last Modified: 06 Oct 2015 10:53
URI: http://eprints.icrisat.ac.in/id/eprint/13937

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