Effects of Chitosan on Cucumber Quality and Yield

Abstract: Chitosan is a natural polymer linear polysaccharide obtained by deacetylation of chitin. Due to its special structure and properties, it has obvious effects on increasing yield and improving crop quality in agricultural production. Chitosan can be made into soil conditioners, plant growth regulators, seed coating agents, foliar sprays, and can also be used as insecticides and fungicides. By studying the effects of different concentrations of chitosan on the quality and yield of cucumber. It was found that seed soaking with 0.15% chitosan had the best effect on increasing the content of soluble protein, free amino acids, soluble sugar and reducing cellulose content in cucumber; seed soaking with 0.2% chitosan had the best effect on increasing the content of vitamin C. In addition, in the leaf spray treatment, the optimal concentration for increasing soluble protein was 0.02%.

1. The effect of chitosan on the soluble protein content of cucumber

After the cucumber was treated with chitosan, the soluble protein content generally increased. Seed soaking with 0.15% chitosan and leaf spraying with 0.02% chitosan had the best effect. Compared with the control, It was increased by 28.5% and 10.6%, respectively.

2. The effect of chitosan on the content of free amino acids in cucumber

After the cucumber was treated with chitosan, the content of free amino acids increased significantly. Seed soaking with 0.15% chitosan and leaf spraying with 0.01% chitosan had the best effect. Compared with the control, It was increased by 55.3% and 22.4%, respectively.

3. The effect of chitosan on vitamin C content in cucumber

Chitosan treatment can significantly increase the vitamin C content of cucumber. Seed soaking with 0.2% chitosan and leaf spraying with 0.01% chitosan had the best effect. Compared with the control, It was increased by 51.2%和30.5%, respectively.

4. The effect of chitosan on the content of soluble sugar in cucumber

Different concentrations of chitosan treatment can increase the content of soluble sugar in cucumber. Among them, the seed soaking treatment with 0.15% chitosan concentration and the leaf spraying treatment with 0.01% concentration chitosan had the best effect, which were 23.5% and 15.4% higher than the control, respectively.

5. The effect of chitosan on the crude cellulose content of cucumber

Chitosan treatment can significantly reduce the crude cellulose content of cucumber. Among them, the cellulose content of cucumber soaked in 0.15% chitosan solution was 30.1% lower than that of the control. In addition, the cellulose content of cucumber was reduced by 25.2% after spray leaves with 0.01% chitosan solution.

6. The effect of chitosan on the yield of cucumber

Chitosan treatment can significantly increase the yield of cucumber. Among them, the effects of seed soaking with 0.15% chitosan solution and leaf spraying with 0.01% chitosan solution were the best. Compared with the control, the yield of cucumber was increased by 40.2% and 45.8%, respectively.

Chitosan can improve crop yield, which is the result of the combined effect of many factors. Chitosan can increase the chlorophyll content of plant leaves and enhance the photosynthetic rate of leaves, which lays the foundation for improving crop yield. Compared with most growth regulators, chitosan has the advantages of natural, non-toxic, odorless, good environmental compatibility, high activity, easy to degrade, etc., It has great utilization value in agricultural production.