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杜仲种子含水量降至３．５％以下，其耐藏力增强．经５０℃１０天人工加速老化后，表现出较强的抗老化能力．室温贮藏２年后，与５℃、－２０℃条件贮藏种子相比，发芽率、根长及活力指数等均无显著性差异．超干种子比对照种子（含水量７．５％，室温贮藏）电导率降低４５％；脂质过氧化产物丙二醛（ＭＤＡ）的积累减少；对脱氢酶活性的保持能力比常规种子增强．超干种子幼苗的吸氧量高于对照种子．经过氧化物酶同工酶谱分析，超干种子与５℃和－２０℃贮藏种子的同工酶谱基本一致．结果表明，杜仲种子经超干处理能显著提高种子耐藏性，并能有效保持种质的稳定性
Eucommia seed moisture content dropped below 3.5%, its resistance to storage increased. After 50 ℃ 10 days artificial accelerated aging, showing a strong anti-aging ability. After 2 years of storage at room temperature, there was no significant difference in germination rate, root length and vigor index compared with those stored at 5 ℃ and -20 ℃. The electrical conductivity of ultra-dried seeds was 45% lower than that of the control seeds (water content 7.5%, room temperature storage); the accumulation of lipid peroxidation products malondialdehyde (MDA) decreased; the ability of dehydrogenase activity to maintain was higher than that of conventional seeds . Ultra-dry seedling oxygen uptake is higher than the control seedlings. After isozyme analysis, the isozymes of ultra-dried seeds were basically the same as that of the seeds stored at 5 ℃ and -20 ℃. The results showed that the ultra-dry treatment of Eucommia ulmoides seed could significantly improve the seed storage stability and effectively maintain the stability of germplasm