Plant wound protective agent containing chitosan oligosaccharide

Abstract

The invention relates to a plant wound protective agent containing chitosan oligosaccharide which contains chitosan oligosaccharide and one or more of a nutritional agent, an adjusting agent and a sterilizing agent, wherein the weight percentage of the chitosan oligosaccharide accounting for the protective agent is 0.0015-0.03 percent. The plant wound protective agent can be used for spraying or smearing. The prepared solid preparation for smearing also contains a film-forming agent. On one to five days before pruning, girdling or grafting, the wound is sprayed by using the protective agent; and on one to five days after the pruning, girdling or grafting, the wound is smeared by the protective agent, so that disease attacks of the wound can be reduced and the healing of the wound can be promoted. The plant wound protective agent is used for apple trees, pear trees, peach trees, jujube trees, grape trees, mango trees, longan trees, lychee trees, citrus trees, watermelon, maidenhair trees, honeysuckle, Arabian jasmine flower and Chinese rose.

Description

technical field [0001] The invention belongs to the field of plant protection, in particular to a plant wound protection agent containing chitosan oligosaccharide. Background technique [0002] In order to regulate plant structure, enhance landscape effects, regulate growth and fruiting, regulate the operation and distribution of nutrients and water, improve ventilation and light transmission, etc., to achieve disease prevention, increase production and income, fruit trees, flowers, landscape trees or vegetables need to be pruned and grafted or girdling. After the plant is traumatized by pruning, grafting or girdling, the plant wound part cannot immediately form an environment isolated from the outside world, because it may cause severe water loss, and a variety of plant pathogens may invade from the wound, causing plant disease and wilting , cause tree vigor to grow weak, or even die, and cause major economic losses to fruit farmers, flower farmers or greening, such as app...

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Problems solved by technology

At present, there is no plant wound protection agent containing oligochitosan on the market

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