After the cut flower leaves the mother's body, the vital activities such as transpiration and respiration of the branches and leaves are continuously carried out, so that the water in the body is continuously lost, and the organic matter is continuously decomposed and reduced. If you can't add water and nutrients in time and slow the rate of loss of water, flowers will fade in a short time, reducing or losing the value of cut flowers. Therefore, the storage and preservation of fresh cut flowers is very important. It generally includes three items: pretreatment, storage and after-sales inserting, prompting and preservation. 1 Pretreatment: Cut flowers after harvest need to be immediately pretreated, including precooling and chemical impregnation. Precooling: Cooling with cold water, cold storage, pressure difference, vacuum cooling and other methods. Chemical treatment: 20 - 30% sucrose + 1000/L silver nitrate solution or 4mmol/L silver thiosulphate solution was used to impregnate the stem base for 20 minutes. 2 Storage: Cut flowers after the pretreatment should be immediately put into the cold storage, insert cold water that has been pre-cooled to 2-3 °C, and store for 4-48 hours. Low temperature can effectively inhibit the respiration of cut flowers and the production of ethylene. Storage time less than 4 hours or more than 48 hours has an impact on the quality of cut flowers. Generally after 4 hours, it can be shipped to the market quickly under low temperature conditions. The above-mentioned pretreatment and refrigerating can also be performed at the same time. 3 after-sale bottle plug, reminder open, preservation: different flowers, different preservatives, suitable for lily preservation solution are the following two: 3% sucrose solution + 200mg/L8-hydroxyquinoline 3% sucrose solution + 200mg/l8- Hydroxyquinoline + 1 mmol/ISTS The life of the flowers treated with the above preservation solution can be extended by more than 2 times. It is worth mentioning that: lily pollen has a strong adhesion, it is difficult to get rid of the skin or clothing, so it should be removed before flowering after splitting the stamen to prevent pollution pollen clothing and petals.
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