allelopathy

Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the growth, survival, and reproduction of other organisms. These biochemicals are known as allelochemicals and can have beneficial (positive allelopathy) or detrimental (negative allelopathy) effects on the target organisms.

1. The allelopathy of black walnut trees can prevent other plants from growing near them.
   黑胡桃树的化感作用可以阻止其他植物在它们附近生长。
2. Some plants use allelopathy to inhibit the growth of competitors and gain more resources.
   一些植物通过化感作用抑制竞争者的生长，从而获取更多的资源。