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选用常优６４（水稻杂交种）和掖单５１（玉米杂交种）为材料，用质量浓度分别为１０ｍｇ／Ｌ的海藻糖（处理Ⅰ）、３ｇ／Ｌ的ＣａＣｌ２（处理Ⅱ）、２０ｍｇ／Ｌ的海藻糖＋６ｇ／Ｌ的ＣａＣｌ２等体积混合（处理Ⅲ）和等体积的蒸馏水（ＣＫ）在１０℃的条件下，浸种２４ｈ，鼓风干燥后在４０℃下人工老化３ｄ，各项生理生化指标的测定结果显示，用ＣａＣｌ２加海藻糖处理能有效地保持种子活力，提高保护膜的稳定性，延缓种子老化，使种子发芽指数、活力指数、呼吸速率等相对保持较高水平，同时，过氧化物和过氧化氢酶活性亦维持较高水平，种子内可溶性蛋白质外渗减少，电导率测定值保持相对低的水平。不同处理间比较，对延缓杂交种子老化的作用效应大小顺序依次为ＣａＣｌ２＋海藻糖＞ＣａＣｌ２＞海藻糖
The effects of trehalose (treatment Ⅰ), 3g / L CaCl2 (treatment Ⅱ), 20mg / L (treatment Ⅱ) Of Trehalose + 6g / L of CaCl2 and so on (Ⅲ) and an equal volume of distilled water (CK) under the conditions of 10 ℃ soaking 24h, blast drying at 40 ℃ artificial aging 3d, the physiological and biochemical indicators The results showed that the treatment of CaCl2 with trehalose could effectively maintain the seed vigor, improve the stability of the protective film, delay the seed aging and keep the seed germination index, vitality index and respiration rate relatively high. At the same time, The activities of catalase and catalase were also maintained at a high level, the extravasation of soluble protein in seeds was reduced, and the measured value of conductivity was kept at a relatively low level. The effects of different treatment treatments on the delay of hybrid seed aging were as follows: CaCl2 + trehalose> CaCl2> trehalose