This paper contains the evaluation of the physical effects of impact loads on wheat grain and triticale one. One level of kinetic energy (15 mJ) exerted on the tested grain had already been established. The point of impact for these forces was the dorsal side of the grain. The physical effects of the action of these impacting forces on the tested grain were evaluated by means of visually analyzing X-ray images before and after impact. Results of this research show that wheat grain has a higher resistance to impact loads, for example during combine harvesting, then does triticale one.