稻种资源是劳动人民长期生产创造的农业遗产,是选育新品种和进行品种研究的物质基础。我省稻种资源丰富,类型繁多,现已保存国内外稻种万份以上。广东气候高温、多湿,且持续时间长。稻种在这气候条件下挂藏,只能保持发芽力一年。因此,历年来保存稻种只靠连年种植,既浪费人力、物力,更影响种子保存质量。长期以来,我们力图寻找简易有效的贮藏方法,但没有获得成功。1975年开始尝试把稻种用铁皮箱贮放在冷冻库中(温度为-18℃,相对湿度70%),并分年测定发芽力。早稻品种贮藏三年仍有个别不发芽。从河北省廊坊地区农科所报导贮藏稻种的结果得到启发,为了解决广东稻种资源贮藏问题,1976年开始,以干燥器密闭贮藏稻种,同时与铁皮箱密封作比较。结果干燥器常温贮藏四年,早造稻种发芽率在80～90%以上的占89.28%,全部品种发芽率均在50%以上。试验结果如下: Rice resources are the agricultural heritage created by the long-term production of working people and are the material basis for selecting new varieties and conducting research on varieties. Rice species rich in our province, many types, has been preserved at home and abroad more than 10,000 kinds of rice. Guangdong climate is hot, humid and long lasting. Rice species in this climatic conditions, can only maintain the germination force for one year. Therefore, the preservation of rice species over the years depends on successive years of planting, which is not only a waste of human and material resources, but also affects the quality of seed storage. For a long time, we tried to find a simple and effective storage method, but we did not succeed. In 1975, an attempt was made to store the rice seeds in a freezer at a temperature of -18 ° C and a relative humidity of 70%, and the sprouting force was measured every year. Three years of early rice varieties are still not individual sprout. Inspired by the results of the stored rice species reported by the Agricultural Science Division of Langfang Prefecture in Hebei Province, in order to solve the problem of storage of rice germplasm resources in Guangdong Province, the rice seeds were stored closed by a dryer in 1976 and compared with that of a steel box seal. Results Dryer stored at room temperature for four years, early rice germination rate of 80 ~ 90% accounted for 89.28%, all varieties of germination rates were above 50%. The test results are as follows: