Allelopathy's the science that studies any process involving secondary metabolites produced by plants, algae, bacteria, coral and fungi that influences the growth and development of agricultural and biological systems . The biomolecules are called allelochemicals and are produced by some plants as secondary metabolites. When the allelochemicals are released into the environment, they inhibit the development of neighbouring plants. By contrast, resource competition involves the reduction of growt… (More on Allelopathy)