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硅胶作干燥剂，起干燥水稻种子（籼，粳）。研究不同干燥方式的干燥速度及对种子生活力的影响。由合水量8.1％～9.4％干燥至7％、5％、4％，3％，2％后密封贮存于0℃，室温（15～30℃），45℃。定期测定种子生活力和活力。结果表明，种子与硅胶生量之比1：10加风扇干燥速度最快，几种干燥方式对种子生活力没有影响。水稻种子的起干燥临界合水量约3％。经过5年3个月的贮藏后表明，贮于45℃老化的机，粳稻种子最佳含水量为4％～5％，贮于室温的最佳合水量为5％～7％，贮于0℃的最佳合水量为5％～8％（原始含水量）。含水量4％，3％，2％的种子在室温和0℃条件下贮藏，种子活力下降迅速，因此水稻种子不适宜超干燥后在室温和0℃贮藏。
Silica gel as desiccant, dry rice seeds (indica, japonica). To study the drying rate of different drying methods and the impact on seed viability. The mixture was dried at 7%, 5%, 4%, 3% and 2% of the amount of water 8.1% -9.4%, sealed and stored at 0 ° C, room temperature (15-30 ° C) and 45 ° C. Regular determination of seed viability and vitality. The results showed that the ratio of seed to silica gel volume 1:10 plus the fan drying speed was the fastest, and several drying methods had no effect on seed viability. The critical dry water content of rice seeds is about 3%. After 5 years and 3 months of storage, it showed that the optimum moisture content of japonica seeds stored in 45 ℃ aging machine was 4% ~ 5%, the best storage temperature at room temperature was 5% ~ 7% The best combination of water is 5% ~ 8% (original water content). Seeds with 4%, 3% and 2% moisture content were stored at room temperature and 0 ℃, and the seed vigor decreased rapidly. Therefore, rice seeds were unsuitable for ultra-drying and stored at room temperature and 0 ℃.