This study concerns the induction of genetic variabilities in some
morphological and yield component characters in faba bean (Vicia faba /,) by
gamma rays. Five varieties of faba bean were used in this study with four
different doses of gamma rays.5.IO.20 and 30 K rad. Nine characters were
studied in both M I and M2 plants.
Data revealed that the increase of gamma rays doses has a significant
negative effect on the M I seed genuination in all the treated cultivars. However
in M2 seed there is no effect. Conccming the shoot length. data showed that
gamma rays had a significant positive effect at the most used doses for M I
plants. while in M2 plants the effect was negative. For the other characters. I1IOS:
results of Ml plants showed that 5 K rad dose had a positive effect as compared
to the control. While at the other doses the effect ranged between negative and
no effects.