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在自然界中,植物、动物、昆虫、微生物等生物除了单独生长外,亦互相影响、组合形成生态系统。这种相互作用,有对光、温度、水份、养料的竞争,及由于化学物质的作用——即他感作用(allelopathy)之缘。他感作用最早由 Molisch(1937)所定义:“由某种植物(包括微生物)所释出的化学物质,能对其他植物产生某些作用的现象”。以后,经许多学者的各种解释,迄今笔者认为对此概念的广义解释为“对于高等植物、菌类、微生物、动物、鱼类、昆虫、线虫等生物个体和群体,以能动或扩散地释出化学物质,其为同种个体所含有,对其他生
In nature, plants, animals, insects, microorganisms and other organisms in addition to growing alone, but also influence each other, forming an ecosystem. This interaction has a rival to light, temperature, moisture, nourishment, and due to the effects of chemicals - the bonds of allelopathy. His sense of role was first defined by Molisch (1937): “A chemical that is released by a plant (including a microorganism) can have some effect on other plants.” Later, after various interpretations by many scholars, so far the author thinks that the concept of broad interpretation as "for higher plants, fungi, microorganisms, animals, fish, insects, nematodes and other biological individuals and groups, with active or diffuse release Chemical substances, which are contained in the same species, to other students