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在自然界中,有些植物在其生长过程中会产生阻碍其他植物生长的化学物质,这种现象被称为“植化相克”。其中起主导作用的生化物质称为克生物质,它们可以遏制其他植物生长或杀死异种植物来保护自身等。这种克生的物质是植物的衍生代谢产物,主要克生物质有萜类、酯类、醌类、香豆素、氰苷等。它们几乎存在于所有植物体中,通过降雨淋洗,地上部分和根系分泌以及枯落物等途径,释放在植物周围环境中,影响着包括自身在内的一些植物的生长发育。
In nature, some plants produce chemicals that hinder the growth of other plants during their growth, a phenomenon known as “phytochemicals.” Among them, biochemicals that play a leading role are called biomasses. They can curb the growth of other plants or kill different plants to protect themselves. This gonomic material is a plant derived metabolites, the main grams of biomass are terpenes, esters, quinones, coumarins, cyanogenic glycosides and so on. They exist in almost all plants and are released into the environment of the plant by rainfall leaching, aboveground parts and root exudates and litters, affecting the growth and development of some plants including themselves.