Method for controlling plant virus harm by improving plant immunity and application thereof

Abstract

The invention provides a method for inducing the immune system of plants by utilizing 4-methyl-1,23-thiadiazole-5-formic acid (NK-F001), 4-methyl-1,23-thiadiazole-5-formic acid (NK-F002), 4-methyl-1,23-thiadiazole-5-formic acid (NK-F003) and methyl thiadiazole formamide (SZG-7) to enable the plants to generate plant virus resistance to protect the plants. The invention also provides the application of the combined use of any two or three of 4-methyl-1,23-thiadiazole-5-formic acid (NK-F001), 4-methyl-1,23-thiadiazole-5-formic acid (NK-F002) and 4-methyl-1,23-thiadiazole-5-formic acid (NK-F003), methyl thiadiazole formamide (SZG-7) and diazosulfide (active ester, BTH), Tiadinil (TDL) and DL-beta-propalanine, virazole, ningnanmycin, antofine, virus satellite No.1 and virus satellite No.2 and XY-13 and XY-30 to improve the plant immunity to induce the plants to generate antiviral activity and processed dosage forms of the single preparations and the mixtures and the composition and the content of effective components in the dosage forms. The invention discloses the range of the plants which can be induced by the compounds and composites thereof, the antivirus range of the induced plants, and the application of the compounds and composites thereof in protecting the plants in the field of agricultural field and horticultural filed.

Description

technical field [0001] The technical scheme of the invention relates to a method for improving plant immunity by using chemically synthesized compounds, and the use of these compounds for improving the resistance of agricultural plants and horticultural plants to infection by virus diseases. Background technique [0002] Plant virus disease is the "cancer" of plants, and its prevention and control methods mainly include physical methods and chemical methods-mechanical methods, but each method can not achieve the desired effect. In chemical methods, there is currently no one that is completely effective. Agents that can control plant virus diseases. Since the occurrence of viral diseases is closely related to the host plant, it has always been the ideal and direction of efforts for agricultural scientists to explore the mechanism of plant resistance to prevent and control viral diseases. , the plant activator is the outstanding achievement of research in this direction. It ca...

AI Technical Summary

Problems solved by technology

[0002] Plant virus disease is the "cancer" of plants, and its prevention and control methods mainly include physical methods and chemical methods-mechanical methods, but each method can not achieve the desired effect. In chemical methods, there is currently no one that is completely effective. Agents that can control plant virus diseases. Since the occurrence of viral diseases is closely related to the host plant, it has always been the ideal and direction of efforts for agricultural scientists to explore the mechanism of plant resistance to prevent and control viral diseases. , the plant activator is the outstanding achievement of research in this direction. It can also avoid the adverse effects of traditional pesticides on beneficial organisms by directly acting on pests, weeds and pathogens to achieve the purpose of insect control, weed control and disease prevention. And to the pressure of environment, at present the plant activator BTH that develops most successfully has been used widely in the world (Bakulev V A, Dehaen W.The Chemistry of 1,2,3-thiadiazole, 2004, John Wiley & Sons, Inc.) , the inventor started from basic research and was funded by the National Natural Science Foundation of China (30270883 and 20672062), the "973" Program (2003CB114402), the Tianjin Natural Science Foundation (07JCYBJC01200) and the Tianjin Science and Technology Support Program International Science and Technology Cooperation Project (07ZCGHHZ01400) Under the design, synthesis and discovery of N-(5-methyl-1,3-thiazol-2-yl)-4-methyl-1,2,3-thiadiazole-5-carboxamide (hereinafter referred to as thiadiazole-5-carboxamide) ) has good biological activity (Fan Zhijin et al., novel [1,2,3] thiadiazole derivatives and their synthesis method and application, National Invention Patent of the People’s Republic of China, Publication No.: CN1810808A; Fan Zhijin et al., have induced gold wire A new compound with secondary metabolic activity of plants of the genus Peach, National Invention Patent of the People's Republic of China, Publication No.: CN2020667A); Afterwards, the inventor carried out systematic structure optimization and creation research on this type of compound (Fan Zhijin, etc., Thiadiazole Formamide derivatives and their synthesis methods and uses, National Invention Patent of the People's Republic of China, application number: 200810052546.6; No.: 200810052547.0; Fan Zhijin, et al., Thiadiazole imine derivatives and their synthesis methods and uses, National Invention Patent of the People's Republic of China, application number: 200810052553.6)

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