Abstract
SUMMARYStudies on the effect of gamma irradiation on yam tubers infected with Scutellonema bradys showed that dosages between 5 and 15 krad did not eliminate the nematodes completely, but suppressed sprouting and signs of deterioration in the tubers. Dosages between 20 and 30 krad eliminated 70–80 % of the nematode population in yam peels. The appearance and taste of yams treated with between 7·5 and 15 krad were generally acceptable to a panel of tasters.
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