Study on allelopathy of Scirpus triquetet

The indoor bioassay and physiological methods were adopted to explore the allelopathy and mechanism of Scirpus triquetet with three plant receptors. The results showed that aqueous extract of S. triquetet had allelopathy on wheat, radish and cucumber, and its inhibition effect gradually strengthened with increasing polarity of extraction. At the same time, the different extraction components had different inhibition effects on the growth of three plant seedlings, which mainly reduced the root activity; inhibition effects on plant seedlings root showed as increased production of MDA, and increased activity of POD, lowered CAT activity and content of CHL, which showed that S. triquetet had the function of allelopathy on wheat, radish and cucumber.