Preharvest aflatoxin contamination of groundnuts subjected to terminal drought stress in postrainy season

Mehan, V. K., Ramakrishna, N., Nageswara Rao, R. C. and McDonald, D. (1995) Preharvest aflatoxin contamination of groundnuts subjected to terminal drought stress in postrainy season. Mycotoxin Research, 11 2: 103-109. doi:10.1007/BF03192072


Author Mehan, V. K.
Ramakrishna, N.
Nageswara Rao, R. C.
McDonald, D.
Title Preharvest aflatoxin contamination of groundnuts subjected to terminal drought stress in postrainy season
Journal name Mycotoxin Research   Check publisher's open access policy
ISSN 0178-7888
Publication date 1995-09
Sub-type Article (original research)
DOI 10.1007/BF03192072
Open Access Status
Volume 11
Issue 2
Start page 103
End page 109
Total pages 7
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Formatted abstract
Groundnuts grown in the postrainy season under terminal drought stress imposed by withholding irrigation, or under a water-deficit gradient created by line-source sprinkler irrigation, were examined for preharvest aflatoxin contamination. High levels of aflatoxin B1 were found in damaged seeds in both situations. When grown under continuous drought-stress, toxin levels in damaged seed samples ranged from 1480 to 2467 ⧎g/kg in the 1990/91, and 1.3 to 2000 ⧎g/kg in the 1991/92 postrainy seasons. Aflatoxin B1 contamination in all damaged seed samples increased with increasing water deficit; toxin levels ranged from 26 to 850 ⧎g/kg across the water deficit gradient. Aflatoxin was either absent or almost negligible (1–2 ⧎g/kg) in apparently undamaged seed samples. Low risk of aflatoxin contamination in apparently undamaged seeds of groundnuts grown in postrainy seasons is indicated, even when there is terminal drought stress.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes DOI link to abstract only.

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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Created: Wed, 25 Jun 2014, 17:54:16 EST by Dr Rao Rachaputi on behalf of Centre for Plant Science