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化感作用是否在外来物种入侵中起协助作用,一直存有争议。“新武器假说”认为,外来植物通过产生新颖的化感物质来抑制本土植物生长,从而使自身占据优势。为探索化感作用在外来种入侵中所扮演的角色,以及开发利用可在自然界降解的植物源除草剂,中国科学院新疆生态与地理研究所对外来植物意大利苍耳的主要化感物质进行了分析研究。实验表明,意大利苍耳植株提取物在0.05g/ml浓度时即可显著抑制受试植物生长,其中叶和果实提取物完全抑制了
It remains controversial whether allelopathy contributes to alien species invasions. The New Weapon Hypothesis holds that exotic plants dominate themselves by producing novel allelochemicals that inhibit native plant growth. In order to explore the role of allelopathy in invasive alien species and the development and utilization of plant-derived herbicides that can be degraded in nature, the main allelochemicals of the exotic plant Xanthium sibiricum, an exotic plant, were analyzed by Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences the study. Experiments show that the cocklebur plant extract 0.05g / ml concentration can significantly inhibit the test plant growth, in which leaves and fruit extracts completely inhibited