1. This process, common amongst plants, is termed allelopathy . 2. Allelopathy is characteristic of certain plants, algae, bacteria, coral, and fungi.3. One approach is to search for rice plant species that exhibit a characteristic known as allelopathy . 4. This is known as positive allelopathy . 5. Thus rotation allows increased yields from nutrient availability but also alleviation of allelopathy and competitive weed environments. 6. These expeditions resulted in several notable papers on allelopathy , v�rzea floodplain forests and anthropogenic lianaceous forests. 7. "Casuarina equisetifolia " leaf litter suppresses germination of understory plants using a biochemical means or allelopathy . 8. Long before the term allelopathy was used, people observed the negative effects that one plant could have on another. 9. Allelopathy is a direct negative effect on one organism resulting from the input of substances into the environment by another.10. Rice allelopathy depends on variety and origin : Japonica rice is more allelopathic than Indica and Japonica-Indica hybrid.