Wheat cold resistance regulating agent

Abstract

The invention belongs to the technical field of plant growth regulators, and relates to a wheat cold resistance regulating agent. The wheat cold resistance regulating agent comprises the specific components of 100-1000 mg / L of enteromorpha polysaccharide, 0 mg / L or 100-200 mg / L of ortho-hydroxybenzoic acid, 0 mg / L or 0.01-0.1 mg / L of brassinolide, 0 mg / L or 100-1000 mg / L of glycine betaine, 0 mg / L or 10-100 mg / L of spermidine, 0 mg / L or 1000-20000 mg / L of surfactant and water as a solvent, wherein the enteromorpha polysaccharide is low-molecule weight enteromorpha polysaccharide with a molecule weight of 1 k-50 kDa; and the related surfactant is one or a mixture of Tween series, Span series, OP series and / or NP series. A use method of the wheat cold resistance regulating agent comprises the step of spraying / irrigating a wheat seedling, or planting after soaking a wheat seed for 6-12 h. The wheat cold resistance regulating agent is simple in components, easily available in raw materials, low in cost, remarkable in effect and environmentally friendly.

Description

Technical field: [0001] The invention belongs to the technical field of plant growth regulators, and relates to a wheat cold-resistant regulator. One or more compound preparations 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 present are Burying retting or drying and crushing into feed has low technical content and low utilization efficiency, resulting in serious waste of resources. Therefore, it is necessary to devel...

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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 complex, preparation method is loaded down with trivial details and effect is not good; Therefore the present invention seeks to design a kind of wheat cold-resistance modifier that is simple and easy to obtain, low in cost, green and natural and anti-low temperature effect is remarkable, for wheat The cultivation of production has important economic significance

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