Lab report on Effect of black walnuts on surrounding vegetation

When one views the ground nearby a black walnut tree, a view of life is very sporadic and almost desolate. Many large trees provide much shading but the grass seems to grow even more economically in these areas. From these observations it appears that the black walnuts contain some type of ingredient that serve as a toxin for the plant life around the base of the tree. <Tab/>At first, a …

…chemicals used to initiate the beginning process, thus keeping it at the dormant state even though the conditions of water and sunshine were correct. After time and dilution with water, the seed began to grow, but not as efficiently as the seed in distilled water from the start. This is why some grass is grown under these trees (from the excessive rain diluting the strength of the acidic toxin) but not as much as others.