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Report No.

Determination of the carbon ion beam irradiation condition for barley

Iimure, Takashi*; Hoki, Takehiro*; Hase, Yoshihiro; Nozawa, Shigeki; Narumi, Issey*; Kihara, Makoto*; Ogushi, Kensuke*

To determine ideal condition of ion beam irradiation for barley grain, carbon ion beams with the LET (Linear Energy Transfer) of 127 (C-127) and 275 (C-275) KeV/$$mu$$m, were applied and the variation of the germination rate, initial plant growth, the survival rate by cultivars and by irradiation doses was observed. As a result, no difference was observed among six cultivars tested and the survival rates were gradually decreased as to the irradiation doses. It was suggested from the relationship between the irradiation doses and the survival rate that the ideal irradiation doses at which the survival rate was around 80% were 10 Gy and 4 Gy for C-127 and C-275 irradiation, respectively.



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