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播前用 r 射线辐照种子,在幼苗期观察植株高度的降低、初生叶片的变小和初生叶面斑点的增加,从这三个方面测定其辐射损伤作用。从植物叶片上产生的斑点,可以区别植物对辐射的抵抗性和敏感性的剂量效应规律。对生长的抑制,同样也可以区分上述类似的情况。虽然,上述三种方法之间有相互关连,但是叶片斑点法是最好的测定辐射损伤的办法。
Irradiation of seeds with r-ray before sowing, observation of plant height in seedling stage decreased, the primary leaflets smaller and primary leaf surface spots increased, measured from these three aspects of radiation injury. The speckles that emerge from plant leaves can be used to distinguish the dose-response laws of plant resistance and sensitivity to radiation. Inhibition of growth, the same can also distinguish the similar situation. Although the above three methods are related to each other, the leaf spot method is the best way to determine the radiation damage.