以大豆和玉米种子为试验材料,探讨了不同类型盐胁迫及外源钙离子对大豆和玉米种子萌发的影响。结果显示:碱性盐对种子萌发的抑制作用要强于中性盐,外源钙离子能够有效提高盐胁迫下大豆和玉米种子中α-淀粉酶、蛋白酶的活性,可溶性糖含量,缓解盐胁迫下种子有机物质分解过程。进而提高盐胁迫下大豆和玉米种子的萌发率、根长或芽长、生物量及含水量等。这种缓解作用在碱性盐胁迫下表现更加显著,对盐敏感性豆科植物的缓解效果更加明显。 The effects of different types of salt stress and exogenous Ca2 + on the germination of soybean and maize seeds were studied using soybean and maize seeds as test materials. The results showed that alkali salt had stronger inhibitory effect on seed germination than that of neutral salt. Exogenous calcium ion could effectively increase the activity of α-amylase and protease and the content of soluble sugar in soybean and maize seedling under salt stress. Seeds organic matter decomposition process. Thus increasing the germination rate, root length or bud length, biomass and water content of soybean and maize seeds under salt stress. The alleviation effect was more significant under alkaline salt stress, and the alleviation effect on salt-sensitive legumes was more obvious.