牛尾蒿水浸液对几种植物种子萌发的化感作用

Allelopathy of Artemisia roxburghiana extract to plant seeds germination

植物化感作用在高等植物中普遍存在,而应用植物化感作用防除农田杂草是目前较为新颖的研究方向。蒿属植物早就是我国中医中常用的药用植物,为探究蒿属植物在农田生态除草方面的应用,选择资源较为丰富的牛尾蒿为研究对象,通过用牛尾蒿水浸提液对莴笋、小米菜、萝卜、黑麦草、野燕麦等植物种子发芽率的试验,表明牛尾蒿对这几种植物有明显的化感作用,并且对双子叶植物和单子叶植物的化感作用有明显的差异。

Allelopathy is common in higher plants. Appling allelopathy to control farmland weeds is a new research trend. Artemisia species has been commonly used as medicinal plants in traditional Chinese medicine in China for a long time. To explore the applica- tion of Artemisia plants in weed control, the water extract of Artemisia roxburghiana Bess. was used to study the allelopathic effects on the germination of lettuce, amaranth, radish, ryegrass, and wild oat seed. The results show that it obviously inhibited the germination of seeds. Allelopathy of Artemisia roxburghiana Bess. has a significant different effects on dicotyledonous and monocotyledonous plants.