To evaluate maize yield in an intercropping system with mungbean, this experiment was conducted in 2010 at the Agriculture and Natural Resources Research Center, Hamedan, Iran. The experiment was conducted in the form of a randomized complete block design with four replications. Treatments of the experiment included four different ratios of maize / mungbean planting density: 25/75, 50/50/ 75/25, 100/0. Results indicated that different ratios significantly affected most of the measured traits except for plant height and the number of ears in plant. 75% maize + 25% mungbean gave the highest yield and yield components.
