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Influence of the cropping pattern on aflatoxin contamination in preharvest Kharif (monsoon) maize crop ( Zea mays )
Author(s) -
Bilgrami Krishna S,
Ranjan Kumar S,
Masood Ahmad
Publication year - 1992
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740580117
Subject(s) - aflatoxin , aspergillus flavus , kharif crop , sowing , preharvest , agronomy , crop , biology , horticulture , microbiology and biotechnology , botany , postharvest
Aflatoxin contamination in three varieties of maize ( Zea mays L), viz Diara composite, M 9 and Suwan composite, under various cultivation rates and planting densities was examined during the 1987 and 1989 Kharif (monsoon) crops. Cultivation rates comprising single line weeding (SLW) with one spading, SLW with two spadings and SLW with three spadings did not have significant effects on aflatoxin production in the preharvest standing crop. Of the three planting populations, the toxin level was highest under 56000 plants ha −1 followed by 83000 plants ha −1 , and 67000 plants ha −1 in Aspergillus flavus inoculated plots (I 1 ) and uninoculated plots (I 0 ), respectively. The variety M 9 was most susceptible to A flavus infection and supported higher aflatoxin production under I 1 condition. Aflatoxin concentration was lowest in Diara composite. Correlation analysis showed a positive and highly significant relation between A flavus incidence and aflatoxin contamination (r = +0.73, P < 0.01).