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Fusarium oxysporum fungicide and application of citral

A Fusarium oxysporum fungicide technology, applied in the application field of Fusarium oxysporum fungicide and citral, can solve the problems of slow growth, affecting the yield and quality of Chinese medicinal materials, and insufficient nutrients

Active Publication Date: 2019-04-16
INST OF CHINESE MATERIA MEDICA CHINA ACAD OF CHINESE MEDICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Later, with the intensification of root rot, the root epidermis was brown to dark brown and rotted, and the tissue was broken, leaving only filamentous brown vascular bundles. Because the root epidermis was destroyed, its ability to absorb water and nutrients was weakened, and the aboveground parts had to be damaged. When the nutrients are fully supplied, the plants show symptoms such as slightly curled and upturned root tips, slow growth, and yellowing of new leaves, which directly affect the yield and quality of Chinese herbal medicines and cause huge economic losses.

Method used

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  • Fusarium oxysporum fungicide and application of citral
  • Fusarium oxysporum fungicide and application of citral
  • Fusarium oxysporum fungicide and application of citral

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Experimental program
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Embodiment 1-8

[0019] Make citral in water to a concentration of 4, 6, 8, 10g·L -1 The dispersion liquid, respectively, to obtain 4g·L -1 Citral dispersion (fungicide 1), 6g L -1 Citral dispersion (fungicide 2), 8g L -1 Citral dispersion (fungicide 3), 10g L -1 Citral dispersion (fungicide 4).

[0020] The Fusarium oxysporum used was preserved by the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences. The fungicide 1-4 was used to test the antibacterial effect of Fusarium oxysporum, and the effect of different concentrations of citral solutions on Fusarium oxysporum was verified.

[0021] Specifically, take 20 mL of sterilized potato dextrose agar (PDA) medium liquid and add it to a sterile petri dish, and draw 400 μL of 1×10 8 cfu ml -1 The Fusarium oxysporum suspension was evenly spread on the solidified PDA, and four sterilized filter paper discs with a diameter of 8mm were evenly glued to the petri dish. see figure 1 , A represents the sterilized filte...

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Abstract

The invention relates to a fusarium oxysporum fungicide, and the active ingredient of the fusarium oxysporum fungicide includes citral. The invention also relates to an application of citral. Citral can be used for preventing and treating fusarium oxysporum as the active ingredient.

Description

technical field [0001] The invention relates to the field of root rot prevention and control, in particular to the application of a fungicide for Fusarium oxysporum and citral. Background technique [0002] Root rot is one of the most common and most harmful diseases in crop cultivation. After identification and research on the pathogenic bacteria of root rot of Chinese medicinal materials, it was found that Fusarium oxysporum was the main pathogen. Fusarium oxysporium (fusarium oxysporium) is a fungus belonging to the genus Fusarium. The pathogen overwinters as mycelia in the soil or on diseased roots and becomes a source of re-infection. Root rot mainly damages the roots or stem bases of seedlings, and the disease begins after the pathogens are colonized. In the initial stage of plant infection, only a few branch roots and fibrous roots are infected, and appear water-soaked. Then the lesion gradually expanded to the main root. After the main root was infected, the early ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N35/02A01P3/00
CPCA01N35/02
Inventor 陈士林董林林徐江王瑞高月
Owner INST OF CHINESE MATERIA MEDICA CHINA ACAD OF CHINESE MEDICAL SCI