Study on Control Techniques of Postharvest Mildew of Broccoli
In order to reduce the incidence of fungal mildew in storage and transportation of broccoli flower balls,which seriously affects the quality of its products.In this paper,broccoli was treated with different temperatures,different concentrations of ethanol,concentrations of chitosan coating,and several other control techniques.The results showed that the heat shock treatment at 45℃ had the best control effect,the area of lesions on 3 d was 6％.The optimum ethanol treatment concentration was 30％,the area of lesions was only 3.4％after treatment for 3 d.The chitosan coating concentration with 1.5％and 2％had good antibacterial effect,which was 7.3％and 4.5％,respectively,and there was no significant difference.1.5％chitosan was the best choice for fresh keeping of broccoli.The disease control effect of 45 ℃ heat shock+1.5％chitosan combination and 30％ethanol+45℃ heat shock treatment on broccoli showed that the two combination treatment could effectively control the occurrence of disease.The 30％ethanol+45℃ heat shock treatment group could reduce ethanol residue,made it greener and safer,and had better green retention and anti mold effects.
万方数据
维普
