Use of galvanised tin cans and bees wax for long-term storage of rice seed
1985
Prasoot Sittisuang | Kitiya Kitkuandee | Paitoon Urairong (Department of Agriculture, Bangkok (Thailand). Rice Research Inst.)
Using seed of two popular rice varieties, the storage efficiency of galvanised tin cans sealed with bees wax was investigated over 65 months for seed with initial moisture content of 6,8,10 and 12 percent. The tins were kept at room temperature and the moisture content and viability monitored. A control treatment of seed stored in cloth bags was maintained at the same temperature. During the period of storage, there was little variability in the seed moisture content relative to that at the commencement of storage, indicating effective sealing of the storage tins with the use of bees wax. The initial seed moisture content did affect the period which the seed could be stored in the sealed cans before its viability declined below the acceptability standard of 80 percent. With an initial moisture content of 6 percent and 8 percent viability of 20 months, while at 12 percent moisture contents viability dropped to less than 80 percent after 12 months. For seed stored in a cloth bag at room temperature viability had dropped to below 80 percent after seven months storage. The study demonstrated that readily galvanised tin cans sealed with bees wax can provide an effective and practical way of maintaining the viability of rice seed initially sun-dried, under farm conditions
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