Study on the effect of grading ear maize prior to storage (Estimation on increase of damaged kernel ratio during handling)
1992
Nitat Tangpinijkul | Kobayashi, Makoto | Harada, Mitsuhisa (Department of Agriculture, Bangkok (Thailand). Agricultural Engineering Div.)
To estimate the effect of rejecting damaged ear maize on aflatoxin prevention, freshly harvested ear maize was prepared into 3 levels of quality through selecting procedure: (1) non-selection, (2) farmers' selection and (3) and researchers' selection. All ear maize samples were kept in gunny sacks and stored for 7 days on a pallet under natural environment. After 7 days storage, number of ear maize infected by A. flavus was only 4.2 percent in the non-selection sample, while 35.4 and 45.1 percent in the selected samples by farmers and by researchers respectively. This seemed to be caused by damage on seed coats by selection procedure on rough surface concrete floor, and it suggested that even a small scratch on seed coat might induce A. flavus infection. Most of ears infected by A. flavus had seed coat damage, 50.4 percent in the non-selection samples and 86.4-87.9 percent in the selected samples.
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This bibliographic record has been provided by Thai National AGRIS Centre, Kasetsart University
