(()~(12)C) ions with different
energy(in MeV level) and flux were implanted into dry seeds of corn and winter wheat.(()~(16)O)
ions with different
energy were implanted into dry seeds of winter wheat.The radiation damage of M_1 generation seedling and mutagenic effects in M_2 generation were studied.Results showed that within a certain energy level,radiation damage on M_1 seedling increased with the energy increasing when the integral flux was given.And radiation damage for(()~(12)C) ion beam with an energy of 12～16MeV/u in corn,and(()~(16)O) ion beam with an energy of 8MeV/u in wheat were obviously greater than that of ion beam with penetration energy(45 MeV/u).The corn mutations induced by(()~(12)C) ion beam could generate various types,such as dwarf,male sterility,albino,multi-ear,and most albinotic seedlings could turn to normal plants and set seeds.Earliness and dwarf were the most frequent mutations found in winter wheat induced by the two type of ions,and in winter wheat Yuandong 6,the earliness
mutation frequency was up to 10.7% induced by(()~(12)C) ion beam with an energy at 8MeV/u and integral flux of 80×10~7/cm~2,and dwarf mutation frequency reached 7.59% induced by an energy at 8MeV/u and integral flux of 120×10~7/cm~2.Variations of mutation frequencies were found among varieties of corn and wheat.