History.- Historical Examples of Allelopathy and Ethnobotany from the Mediterranean Region.- Allelopathy: Advances, Challenges and Opportunities.- Allelopathy in Chinese Ancient and Modern Agriculture.- Allelochemicals and Allelopathic Mechanisms.- Allelochemicals in Plants.- Allelopathy: Full Circle from Phytotoxicity to Mechanisms of Resistance.- Allelopathic Mechanisms and Experimental Methodology.- Indirect Effects of Phenolics on Plant Performance by Altering Nitrogen Cycling: Another Mechanism of Plant–Plant Negative Interactions.- Genomic Approaches to Understanding Allelochemical Effects on Plants.- Allelopathy from a Mathematical Modeling Perspective.- Application of Allelopathy in Agriculture and Forestry.- Progress and Prospect of Rice Allelopathy Research.- Rice Allelopathy Research in China.- Recent Advances in Wheat Allelopathy.- Sorghum Allelopathy for Weed Management in Wheat.- Allelochemicals in Pre-cowing Soils of Continuous Soybean Cropping and Their Autointoxication.- Autotoxicity in Agriculture and Forestry.- Black Walnut Allelopathy: Implications for Intercropping.- Plant Growth Promoting Rhizobacteria and Mycorrhizal Fungi in Sustainable Agriculture and Forestry.- Utilization of Stress Tolerant, Weed Suppressive Groundcovers for Low Maintenance Landscape Settings.- Allelopathy in Forested Ecosystems.