采用硅胶干燥法将沙冬青和霸王种子的含水量降至5%以下,以研究对种子活力和生理特性的影响。结果表明,沙冬青和霸王种子的耐脱水性较高,含水量分别降至4.67%和3.89%,种子活力虽略有下降,但明显高于对照,细胞膜也能够保持较好的完整性,脱氢酶活性、α-淀粉酶活性、呼吸强度都较高,可见4.67%和3.89%分别是沙冬青和霸王种子超干保存的最适含水量。 Silica gel drying method was used to reduce the water content of A. asiatica and overlord seed to below 5% to study the effect on seed vigor and physiological characteristics. The results showed that the desiccation resistance of A. mongolica and the overlord seed was higher, the water content decreased to 4.67% and 3.89% respectively, the seed vigor decreased slightly, but was obviously higher than that of the control, and the cell membrane could maintain good integrity. Hydrogenase activity, α-amylase activity, respiration intensity are higher, showing 4.67% and 3.89% respectively, the optimum moisture content of Astragalus and Overlord of dried overblown seeds.