接受抽穗期小麦提取物进行化感效应测定的１０种作物和杂草中，反枝苋和繁缕的生长受到显著影响：提取物浓度５００ｍｇ／ｋｇ时，反枝苋种子发芽率为１４％。用小麦提取物５０ｍｇ／ｍ２进行土壤处理，２个月后反枝苋干重抑制率达８２％，用同样剂量对繁缕进行了茎叶处理，３０天后有７６％～８５％的繁缕死亡 Of the 10 crops and weeds that were subjected to the allelopathic effect of the heading stage of wheat extract, the growth of Amaranthus retroflexus and Sophora flavescens was significantly affected: the seed germination rate of Amaranthus retroflexus was 14% at the extract concentration of 500 mg / kg. Soil treatment with wheat extract 50mg / m2, two months later Amaranthus retroflexus dry weight inhibition rate of 82%, with the same dose on the chickweed stems and leaves treatment, after 30 days 76% to 85%