At present, hundreds of natural compounds having herbicidal activity have been found in plants and many microorganisms in more than 30 families in the world. Some of them have been developed as natural herbicides. However, in the field of natural herbicides, interest in natural compounds as herbicides and their lead materials is biased towards compounds of microbial origin rather than plant-derived compounds.
The xenobiotic interaction between plants is important for the comprehensive management of weeds in agriculture and the development of natural plant-derived herbicides. The herbicide plant source has the compound as a secondary metabolite of the plant, which can affect the growth and metabolism of the plant. Studies have shown that wheat has a heterogeneous effect on P. chinensis, and Tillage can completely prevent D. chinensis. Further studies have found that the methanol eluate of wheat glumes has a high inhibition rate on P. chinensis, and it is expected to be developed to prevent D. Plant-derived herbicides such as weeds. The allelopathy effect of the test showed that there was also a gram biomass in wheat that significantly inhibited the growth of two weeds, A. sinensis. In addition, studies on the heterogeneity of plants in rice, Zizel stem orchid, and wolfberry have been carried out, confirming the existence of xenobiotics in these materials. There are bound to be many high-activity lead compounds in a large number of xenobiotic compounds, and the ideal lead is screened out, and artificially simulating the synthesis of new, high-efficiency, low-toxic plant-derived herbicides has become the current research field of herbicides. A hot spot. (China Pesticide Information Network)
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