Root rot of licorice, a medicinal plant
The main symptoms were the rhizome and the root. After the injury, the aboveground stem and leaf gradually yellowed and withered, and the rhizome became yellow-brown to black-brown sunken and festered.
Pathogen Fusariumsp. It is called a kind of Fusarium, which belongs to the subphylum Fusarium. The morphological characteristics, transmission routes, disease conditions and control methods of the pathogen can be seen in Astragalus root rot.
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Licorice brown spot of medicinal plant
The scientific name of licorice is GlycyrrhizauralensisFisch. Alias beautiful grass, dense grass, belongs to leguminous perennial herbs. It is used in medicine with root and rhizome. It has the effect of harmonizing the emergency, moistening the lungs and detoxifying, and reconciling all kinds of medicines. Produced in Inner Mongolia, Gansu, Shanxi, Shaanxi, Liaoning, Jilin, Heilongjiang, Hebei and other provinces. The main symptoms are damage to leaves. The disease spot on the leaf is round or irregular, the size is l-3mm, the center is grayish brown, the edge is brown, and there are grayish black mildew on both sides, that is, pathogen conidia.
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China has become a leader in licorice research and development.
A few days ago, it was learned from the founding meeting of the professional committee of traditional Chinese medicine of the World Federation of traditional Chinese Medicine and the international symposium on traditional Chinese medicine that China has successfully used chiral catalysis technology to purify the active ingredients of licorice, and increased it from 3% to 97%, greatly saving medicinal materials. At the same time, the recent advent of a new drug, chiral liver drug "Tianqing Ganmei", shows that China has occupied a leading position in the world in the research and innovation of licorice preparation. Chiral technology is through the scientific adjustment of the chemical structure of drugs.
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