The Effect of Gamma Irradiation and Storage on the Content of Sugar in the Onion Bulb.

The present study was carried out to investigate the effect of gamma irradiation on the content of sugar in onion bulbs during the storage at room temperature and at 1℃. Onion bulbs. Sapporo yellow, were irradiated with the dose of 7000 and 15000 rad from Co-60 gamma source. Takasaki Laboratory, Japan Atomic Energy Research Institute soon after the harvest and after storage for 1 month at room temperature. The experimental result showed that the content of sugar in onion bulbs was not significantly changed by any dose of irradiation and also by temperature during storage.