New Technology of fresh-keeping of cut Flowers Tulip

Harvesting and cutting stage: for Darwin varieties, cut when the buds are half colored and half green, and for other varieties, when the whole buds are colored. Tulips should be cut several times a day, which can make the cut flowers neat and consistent and have the best postharvest life. Storage and transportation conditions: cut tulip flowers can be stored for short-term dry storage and wet storage. Varieties with short postharvest life (such as Apollo) can be stored in water for 3 days at 3 °C or dry at 0-1 °C for 6 days, while varieties with longer life (such as Aladdin, etc.) can be stored for about 3 days under the same conditions. Cut flowers with bulbs pulled from the soil can be stored for longer. Tulips should be placed vertically during storage to prevent flower stems from bending. When dry storage, the flower stem should be tightly wrapped and then placed horizontally. The cut flowers are packed in a moisturizing box and dried at 1 °C. Cut flowers should be placed vertically, and the packaging should be looser to avoid excessive carbon dioxide accumulation. When the cut flowers arrive at their destination, if the stems are bent, you can wrap them in wet paper and straighten them, insert them into the water, and shine light on the top to straighten them. Sensitivity to ethylene: tulips are relatively insensitive to ethylene, but after being poisoned by ethylene, the buds are not open, the petals are blue, and aging is accelerated. Preservative treatment: (1) slow down the bending of cut flowers to light: after harvest, cut flowers grow quickly in water, and phototaxis bend the stems. Try to contain 25 mg pyrimidinol or 50 mg vinyl per liter to slow down this process. You can also spray cut flowers with 50-100 mg pyrimidine alcohol solution per liter. (2) bottle preservative: try a mixture of 50g sucrose, 300mg 8-hydroxyquinoline citrate and 50mg CCC per liter, or 10mg ammonium alginate, 25g sucrose and 10mg calcium carbonate per liter. Vase life: about 5-10 days, depending on ambient temperature, humidity and other factors. Cut flowers are sensitive to Botrytis cinerea and should be prevented. Note that tulips cannot be put in the same vase as cut daffodils.