The elongation of roots and shoots was inhibited by irradiation at doses exceeding
0.3 kGy in husked rice (Kawamura et al., 1992a), wheat (Kawamura et al., 1992b) and mung beans (Machaiah et al.,1999). Lan et al. (1991) found that irradiation at doses of 0.1–1 kGy had no effect on germination and root length of green beans determined 3 days after germination