Plant salt resisting conditioning agent and preparation method thereof

Abstract

The invention belongs to the technical field of plant growth conditioning agents, and relates to a plant salt resisting conditioning agent. The plant salt resisting conditioning agent is prepared from porphyra polysaccharides with the concentration of 100-1,000 mg / L, salicylic acid with the concentration of 0 mg / L or 100-200 mg / L, brassinolide with the concentration of 0 mg / L or 0.01-0.1 mg / L, glycine betaine with the concentration of 0 mg / L or 100-1,000 mg / L, spermidine with the concentration of 0 mg / L or 10-100 mg / L, a surfactant with the concentration of 0 mg / L or 1,000-20,000 mg / L and water, wherein the water serves as a solvent, and low-molecular-weight porphyra polysaccharides with the molecular weight of 1 k-50 k Da are adopted as the porphyra polysaccharides. Accordingly, novel application of the porphyra polysaccharides is supplied, and the porphyra polysaccharides can be used for preparing the plant salt resisting conditioning agent; meanwhile, by compounding the porphyra polysaccharides with the biological source induced resisting substances such as salicylic acid, brassinolide, glycine betaine and spermidine to prepare the salt resisting conditioning agent, the comprehensive resistance of plants on salt stress can be improved, and normal growth and development of the plants are guaranteed; according to the salt resisting conditioning agent, the components are simple, the raw materials are easy to obtain, the cost is low, the effect is significant, and environmental friendliness is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of plant growth regulators, in particular to a plant salt resistance regulator. Background technique: [0002] Porphyra is a large economical red algae belonging to Rhodophyceae and Rubiaceae. The algal body is dark brown, red or purple. It mainly grows in the intertidal zone of shallow seas and has strong reproductive ability and environmental tolerance. Artificial cultivation has been carried out in the coastal areas of China, and the production of laver in China ranked first in the world at the beginning of the 21st century. Porphyra polysaccharide contained in laver is one of the main active substances of laver. It has many characteristics such as immune regulation activity, cell proliferation promotion activity and anti-oxidation activity. It has been widely used in food and industrial fields, and laver polysaccharide can promote plant growth. It also has great application potential in plant disease r...

AI Technical Summary

Problems solved by technology

Enhancing the salt-resistant ability of wheat has important practical significance and application value to ensure high and stable wheat yields and food security; in practice, Chinese patents CN1290483A, CN1943340A, etc. disclose wheat salt-resistant regulators, the main components of which are gibberellin, water Cylic acid amino polysaccharides, sorbitol and mannitol, etc., but no salt-resistant agents using laver polysaccharides as raw materials have been reported yet, and laver polysaccharides are easy to obtain, low in cost, green and natural, and have important economic significance for crops to resist salt

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