The rise of the flower industry is an important symbol of China's economic and social development. Now, regardless of the north and south of China, the opening of flower shops in towns is springing up. A lot of friends wrote to ask about how to control the flowering of some flowers. The following describes the flowering control techniques of several major flowers for reference.
Chrysanthemums are short-day plants, and flower bud differentiation occurs only in short-day conditions. Therefore, the flowering period can be controlled by controlling the length of sunshine. For this reason, flowers must bloom under long-day conditions and short days should be handled. When the plants are vigorously cultivated in advance and the shoots grow to 9-12 cm, only 9-10 hours of light is given each day, and the rest of the time can be covered with black cloth or black plastic film (appropriate for morning and evening. ). The effective induction of short days is at the top, so the upper part must be completely dark and the base is lax. After about 30 to 40 days of treatment, chrysanthemums can form buds. Afterwards, they can go to cover and strengthen the management of fertilizer and water. In order to delay flowering, late flowering varieties can also be selected. The method of prolonging sunshine can prevent flower bud formation and delay flowering.
Peony should bloom early in the Spring Festival, should choose the jade powder, Yu Lou spring, peach blossom and other early flowering varieties. After 5-6 years of age, the plant grows strong, and after defoliating, the peony is put on a basin, and the root system is not damaged as much as possible. The plant is placed in a place with low temperature and once fertilized, and then transferred to a greenhouse at room temperature of about 25°C. The plants were sprayed with water 5 to 6 times a day. After the leaves were sprayed only. When the flower buds are in color, they are transferred to a low-temperature greenhouse so that the flowering period can be maintained for about 20 days. To delay the normal flowering period of peony, you can use cold storage to extend the dormancy period. Keep the temperature above 0 °C, the room should have low light, and irradiate 3 to 4 hours every day.
Most lotus flowers bloom in June-August. In order to bloom on National Day, early flower varieties cultivated until flowering are used for about 50 days. The second cylinder was planted in mid-July so that it could bloom on National Day. New varieties of late-flowering varieties will be formed in early September, and then they will be planted in greenhouses at room temperature of 22°C or more. The lotus flowers can bloom in winter.
Rhododendron azaleas flower bud differentiation in the autumn, in order to make it bloom in the winter, you can move it to greenhouse cultivation, temperature control 20-25 °C, and often spray water on the branches and leaves, so that one and a half months can be opened with luxuriant flowers. If you want to blossom on New Year's Day. Before entering the greenhouse, first treat it at a low temperature of around 0°C for 1 to 2 weeks. In order to delay the flowering of the cuckoo, it can be kept at a low temperature, placed in a cold room, and kept at a temperature of 1-3°C. When the custody time is long, the room must have light. Storage time is 15 to 20 days before flowering.
Camellia can be used to adjust the temperature to promote or delay flowering. In order to delay flowering, late flower varieties should be selected. Before the storage, the whole plant should be wrapped and cold-proofed and placed in a cold storage of 2 to 3°C. Weak light should be observed every day for about 6 hours. The processing time is about 1 month. Delayed flowering can be achieved. Spring flowering varieties meet low temperature requirements. Just warm up to catch early blossoms.
Poinsettia poinsettia is a typical short-day plant, so by adjusting the length of the light, you can achieve the purpose of controlling the flowering period. To make it bloom on the National Day, you can start from early August and treat it with a short day of sunshine for about 40 days. Then you can see beautiful red sequins in late September. If you want to bloom in the New Year, you do not need to shading. When transplanted into the greenhouse for later cultivation, the sepals naturally turn red. To delay the flowering period, you can achieve the purpose by lengthening the lighting time by lighting.
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