国内外许多研究证明,辐照后立即用修复抑制剂咖啡因浸种,可增加辐射损伤,提高 M_2代突变率。李春兰等也作过类似研究,并得出同一结论。然而,一些学者通过动物试验认为:修复抑制剂必须在辐照时存在才能发挥作用,辐照后使用无效。植物上辐照前使用修复抑制剂的报道还很少 Many researches at home and abroad prove that soaking caffeine with the repair inhibitor immediately after irradiation can increase the radiation damage and increase the M_2 generation mutation rate. Li Chunlan also made similar research, and come to the same conclusion. However, some scholars believe through animal experiments that repair inhibitors must be effective at irradiation to be effective and should not be used after irradiation. There are few reports on the use of repair inhibitors before irradiation on plants