Alginate oligosaccharide is a linear oligosaccharide composed of β-D mannuronic acid and α-L guluronic acid linked by β-1-4 glycosidic bonds. It is a functional oligosaccharide seaweed oligosaccharide with regulatory It plays an important role in plant growth, improving plant stress resistance, reducing the incidence of plant diseases and insect pests, and promoting seed germination, especially as a new type of green and environmentally friendly biological fertilizer in agricultural production.
Experimental case 1
Alginate oligosaccharide was applied to water spinach hydroponics. Six control groups were set up in the experiment. Treatment group 1 was a blank control group (CK); treatment group W1 was sprayed with Alginate oligosaccharide solution at a concentration of 0.02 mg/mL; treatment group W2 was sprayed with a concentration of 0.04 mg/mL Alginate oligosaccharide solution; treatment group W3 was sprayed with 0.10 mg/mL Alginate oligosaccharide solution; treatment group W4 was sprayed with 0.20 mg/mL Alginate oligosaccharide solution; treatment group W5 was sprayed with 1.00 mg/mL Alginate oligosaccharide solution solution.
Alginate oligosaccharide can effectively improve the yield and quality of water spinach. After the application of Alginate oligosaccharide, the average plant height and average net weight of water spinach increased, and the soluble sugar and soluble protein contents in water spinach increased significantly. In addition, the chlorophyll content also increased to a certain extent.
The experimental case is from Wang Xuejiang's "Effect of Alginate oligosaccharide on the growth and growth rate of water spinach"
Experimental case 2
Alginate oligosaccharide treatment cowpea experiment: Alginate oligosaccharide of 100 μg/mL and 200 μg/mL was used to treat cowpea plants in agricultural production. Compared with the control group, it was found that the plant growth index of the treatment group was better than that of the control group, and the yield was increased compared with the control group. 25.25%, 33.35%. In addition, in the early seedling stage, Alginate oligosaccharide has a certain effect on reducing the disease incidence of cowpea seedlings. 100μg/mL Alginate oligosaccharide solution compared with the water control group, the incidence of root rot was reduced by 9.88%, and the incidence of rust was reduced by 18.40%. Alginate oligosaccharide at 200 μg/mL reduced the incidence of root rot to 13.85% and the incidence of rust to 58.68%. In the results of pesticide residue testing, Alginate oligosaccharide was able to reduce pesticide residues on crops.
The experimental case comes from Sun Minxiu's "Research on the Application of Seaweed Products in Vegetable Production and Soil Improvement"
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