Studying plants interspecific and intraspecific competition can provide a better understanding of plants diversity in natural communities. Competition responses explains why a single species can maintain a high diversity in one community, and a lower diversity in a different community. The main purpose of this experiment it to determine which conditions will the oats plants will grew better and have high growth size . Oats responses to interspecific and intraspecific competition where measure by examining the interactions of oats in high density, oats with tomatoes, and oats with alfalfa. Plants were allowed to grow in pots with the assigned proportions and density of plant species. Plants were harvest and the length (mm) and weight (mg) of
