Fig. 1. Photographs of ion beam bombardment of the rice seeds. (A) Ion implanter used in the work. (B) Peeled rice seeds (Oryza sativa L. cv. KDML 105) ready for being placed
in the sample holder. (C) The copper-made sample holder (10 cm in diameter) holding the rice seeds with the embryo ends upward facing to the ion beam incident direction
ready for ion bombardment.