Method for preparing cold-resistance wheat conditioning agent

Abstract

The invention belongs to the technical field of plant growth conditioning agents, and relates to a method for preparing a cold-resistance wheat conditioning agent. The method comprises the following steps: firstly, performing microwave degradation on enteromorpha polysaccharide prepared by using a hot water extraction method to prepare low molecular weight enteromorpha polysaccharide, further dissolving the prepared low molecular weight enteromorpha polysaccharide into distilled water so as to condition the concentration of enteromorpha polysaccharide to be 100-1000mg / L and prepare an enteromorpha polysaccharide solution, namely, the cold-resistance conditioning agent; or respectively adding salicylic acid, brassinolide, glycine betaine and / or spermidine into the enteromorpha polysaccharide solution, wherein the concentration of salicylic acid is 0mg / L or 100-200mg / L, the concentration of brassinolide is 0mg / L or 0.01-0.1mg / L, the concentration of glycine betaine is 0mg / L or 100-1000mg / L, and the concentration of spermidine is 0mg / L or 10-100mg / L, and finally uniformly stirring to prepare a compound solution, namely, the cold-resistance conditioning agent; or further adding a surfactant into the compound solution, wherein the concentration of the surfactant is 1000-20000mg / L, uniformly stirring so as to prepare the cold-resistance conditioning agent. The cold-resistance conditioning agent has the advantages of rich raw material resource, scientific preparation component, simple preparation process and low machining cost.

Description

Technical field: [0001] The invention belongs to the technical field of plant growth regulators, and relates to a preparation method of a wheat cold resistance regulator, the components of which include enteromorpha polysaccharide or enteromorpha polysaccharide and salicylic acid, brassinosteroids, betaine and / or spermidine The compound preparation of one or more of them can effectively improve the cold resistance of wheat. Background technique: [0002] Enteromorpha is a large-scale economical green algae belonging to the genus Enteromorpha genus Ulvaceae of Chlorophyta Ulvaceae. The algae are grass green and mainly grow in the intertidal zone. It can grow every year, and there are a large number of distributions along the coast of my country; however, in recent years, large-scale sudden green tides of Enteromorpha have continuously broken out in my country's coastal waters, causing great pollution to the sea environment. Most of the common methods of using Enteromorpha at p...

AI Technical Summary

Problems solved by technology

[0003] Wheat is the second largest grain crop in China. It has a long growth period. It is sown in autumn, winter and spring, and harvested in summer. The growth period spans 2 years, including four seasons of spring, summer, autumn and winter. After experiencing low temperature stress such as cold current and late spring, and almost all winter wheat planting areas have chilling injury and freezing injury, which greatly affects the quality and yield stability of wheat production, and seriously threatens food security. At present, low temperature freezing injury has become the largest natural problem in China's wheat production. One of the disasters; therefore, enhancing the ability of wheat to resist low temperature and freezing damage has important practical significance and application value for ensuring high and stable wheat yields and ensuring food security; in practice, Chinese patent 201310116703.6 discloses a wheat low temperature resistance regulator and its preparation method , the specific components include amino polysaccharide 3~9g / L, choline chloride 20~100g / L, salicylic acid or sodium salicylate 4~20g / L, potassium silicate 80~400g / L, surfactant 20 ~100g / L and water, but its composition is complicated, preparation method is loaded down with trivial details and effect is not good; Therefore the present invention seeks to design a kind of preparation method of the wheat cold-resistance modifier that is simple and easy to obtain, low in cost, green and natural and anti-low temperature effect remarkable , which has important economic significance for the production and cultivation of wheat

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