研究了钙对小麦种子活力的效应 ,并探讨了其影响机理。在 2 .5～ 10 mmol/ L　 Ca2 +水平 ,低浓度的钙离子对小麦种子的发芽率和活力均有提高作用 ,最适浓度为 5mmol/ L。低浓度的钙离子提高小麦种子发芽率及种子活力的原因之一是其提高了种子淀粉酶的活力 The effect of calcium on the vigor of wheat seeds was studied and its mechanism of action was discussed. At the level of 2.5 ~ 10 mmol / L Ca2 +, low concentration of calcium ion had an effect on the germination rate and vigor of wheat seeds. The optimal concentration was 5 mmol / L. One of the reasons why low concentration of calcium ion can improve germination rate and seed vigor of wheat is that it can increase the activity of seed amylase