小麦化感作用是利用小麦活体或残体向环境中释放次生代谢物质对自身或其他生物产生作用,它能克服除草剂和杀菌剂等引起的环境污染问题,具有抑制杂草控制病害的潜力。本文对小麦化感作用及其应用作了简要概述。小麦对杂草、虫害及病害产生防御功能的主要化感物质为异羟肟酸和酚酸类物质。小麦化感作用在植物保护、环境保护以及作物育种等方面具有广泛的应用前景,促进了小麦抗逆性的增强以及产量和品质的提高。 Allelopathy of wheat is the use of the release of secondary metabolites from the living or the residual body of wheat to the environment or to other organisms, which can overcome the environmental pollution problems caused by herbicides and bactericides and has the potential of inhibiting weed control diseases . This article gives a brief overview of the allelopathic effect of wheat and its application. The major allelochemicals of wheat that have defenses against weeds, pests and diseases are hydroxamic acids and phenolic acids. Allelopathy of wheat has broad application prospects in plant protection, environmental protection and crop breeding, and has promoted the enhancement of wheat stress resistance and the improvement of yield and quality.