Effects of alginate oligosaccharides on the plant growth
Alginate oligosaccharides are a linear oligosaccharide connected by β-D glycophytal acid and α-L gosic acid through β-4 glycoside bonds. It is a functional oligosaccharides. It plays an important role in plant growth, improving plant resistance, reducing the incidence of plant diseases and insect pests, and promoting seed germination, especially as new type of green and environmentally friendly biological fertilizer, it plays an important role in agricultural production.
Experimental project 1
Apply alginate oligosaccharides to hydroponic water spinach ( Iromoea aquatic forsk), and set six control groups in the experiment:
- The group 1 is the blank control group (CK)
- The group W1 sprayed concentration of 0.02 mg/ml alginate oligosaccharides solution.
- The group W2 sprayed concentration of 0.04 mg/ml alginate oligosaccharides solution.
- The group W3 sprayed concentration of 0.10 mg/ml alginate oligosaccharides solution.
- The group W4 sprayed concentation of 0.20 mg/ml alginate oligosaccharides solution.
- The group W5 sprayed concentation of 1.0 mg/ml alginate oligosaccharides solution.
Alginate oligosaccharides can effectively improve the yield and quality of water spinach ( Iromoea aquatic forsk). After applying alginate oligosaccharides, the average height and level of the plant height has been improved, and the content of soluble sugar and soluble protein in water spinach (Iromoea aquatic forsk) has significantly improved. In addition, chlorophyll content has also been improved to a certain extent.
Note: The experiment data is from Wang Xuejiang's "Effect of alginate oligosaccharides on the growth and growth rate of water spinach ( Iromoea aquatic forsk)"
Experimental project 2
Alginate oligosaccharides treatment om cowpea experiments: use 100 μg/ml, 200 μg/ml of alginate oligosaccharides to treat cowpea plants in agricultural production respectively. Compared with the control group, it is found that the plant growth indicators of the treatment group are better than the control group. The treatment group increased by 25.25%and 33.35%. In addition, in the early days of seedlings, alginate oligosaccharides have a certain reduction in the incidence of disease on cowpea seedlings. Compared with the control group, for alginate oligosaccharide solution of 100 μg/ml group, the incidence of root rot was reduced by 9.88%, and the incidence of rust was reduced to 18.40%, the alginate oligosaccharide of 200 μg/ml group reduces the incidence of root rot to 13.85%, and the incidence of rust is reduced to 58.68%. In the results of pesticide residues test, alginate oligosaccharides can reduce the amount of pesticide residues on the crops.
Note: Experiment data is from Sun Minxiu's "Research on alginate oligosaccharides in Vegetables and Soil Improvement"
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