苏联有许多试验资料证明,Co~(60)低剂量的电离辐射,对种子发芽有刺激作用,能提高种子的发芽率和发芽势。我们对水稻种子的试验观察结果,也得到同样的效应。试验采用了六个籼、粳稻品种(南特号、四川大谷、3425等三个籼稻品种和早粳稻五号、卫国、宁丰等三个粳稻品种)。每一品种分对照、1伦、5伦、10伦、50伦、100伦、500伦、1000 There are many experimental data in the Soviet Union to prove that the low dose of Co ~ (60) ionizing radiation can stimulate seed germination and increase seed germination rate and germination potential. Our experimental observations on rice seeds also yielded the same effect. Six indica and japonica cultivars (Nante number, three indica rice varieties including 3425 and so on) and three japonica rice varieties (early japonica rice variety No.5, Weiguo and Ningfeng) were used in this experiment. Each species control points, 1 Lun, 5 Lun, 10 Lun, 50 Lun, 100 Lun, 500 Lun, 1000