Effect of geocarposphere temperature on pre-harvest colonization of drought-stressed peanuts by Aspergillus flavus and subsequent aflatoxin contamination

Blankenship, P.D. and Cole, R.J. and Sanders, T.H. and Hill, R.A. (1984) Effect of geocarposphere temperature on pre-harvest colonization of drought-stressed peanuts by Aspergillus flavus and subsequent aflatoxin contamination. Mycopathologia , 85 (1-2). pp. 69-74.

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Abstract

Florunner groundnuts grown in research plots were subjected to 5 soil temps. and moisture treatment regimes resulting in A. flavus infestation and subsequent aflatoxin contamination in drought-stressed groundnuts. Treatments imposed beginning 85 days after planting were drought, drought with heated soil and 2 drought treatments with cooled soil. The incidence of A. flavus in drought-stressed, unshelled, sound mature kernels (SMK) decreased with decreases in the mean 5 cm deep soil temp. The incidence of A. flavus was greater in inedible categories and in damaged kernels than in SMK. The mean, threshold, geocarposphere temp. required for aflatoxin development during the latter part of the groundnut growth cycle was found to be between 25.7 and 27°C

Item Type: Article
Author Affiliation: USDA, Natn. Peanut Res. Lab., Dawson, Ga. 31742, USA.
Subjects: Plant Protection
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 08 Jul 2013 13:33
Last Modified: 08 Jul 2013 13:33
Official URL: http://dx.doi.org/10.1007/BF00436705
URI: http://eprints.icrisat.ac.in/id/eprint/10953

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