The rise of the flower industry is an important indicator of China's economic and social development. Nowadays, regardless of the north and south of China, the opening of urban flower shops has sprung up. Many friends wrote to ask how the flowering period of some flowers is controlled. Below, the flowering control techniques of several major flowers are introduced for reference.

Chrysanthemum is a short-day plant, and flower bud differentiation occurs only under short-day conditions. Therefore, the flowering period can be controlled by controlling the length of sunshine. To this end, it is necessary to bloom in long-day conditions, and short-day treatment should be carried out. Plant the seedlings in advance, when the shoots grow to 9-12 cm, give only 9-10 hours of light per day, and cover the plants with black cloth or black plastic film for the rest of the time (in the morning and evening. ). The effective induction of short daylight is at the top, so the upper part must be completely dark, and the base is not required to be strict. After about 30 to 40 days of treatment, the chrysanthemum can form a flower bud, which can be removed later and the fertilizer and water management can be strengthened. In order to delay flowering, the late flower variety can also be selected, and the method of extending sunshine can be used to prevent the formation of flower buds and delay flowering.

Peony should be flowered in advance to the Spring Festival, and should choose jade powder, Yulouchun, peach red and other varieties that bloom early and diligent. 5-6 years old, strong plant growth, after the leaves, put the peony on the basin, try not to damage the root system, put it in a place where the temperature is not high, fertilize once, and then move it into a greenhouse at room temperature of about 25 °C. Sprinkle water 5 to 6 times a day on the plants. Only spray the branches after the leaves. 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 of the peony, the cold storage method can be used to prolong its dormancy period. The temperature should be kept above 0 °C, and there should be weak light in the room, and it should be irradiated for 3-4 hours every day.

Most of the lotus flowers bloom in June and August. In order to make flowers bloom on National Day, we can use early flower varieties that are cultivated and flowered for about 50 days. It was planted in the second time in mid-July, so that it can bloom on National Day. The new flower of the late flower variety should be formed in early September, and then planted in a greenhouse at room temperature above 22 °C, the lotus flower can bloom in winter.

Rhododendron azaleas undergo flower bud differentiation in the autumn. In order to make it bloom in winter, it can be moved to greenhouse culture, temperature control 20-25 ° C, and often spray water on the branches and leaves, so that one and a half months can produce lush flowers. If you want to bloom on New Year's Day. Before entering the greenhouse, it should be treated at a low temperature of about 0 °C for 1-2 weeks. In order to delay the flowering of rhododendron, it can be kept in a low temperature state, placed in a cold room, and kept at 1-3 ° C. When the storage time is long, there should be light in the room. Storage time is 15 to 20 days before the flowering is required.

Camellia can be used to promote or delay flowering by adjusting the temperature. In order to delay flowering, the late flower variety should be selected. Before storage, the whole plant should be wrapped and cold-proof, placed in a cold storage of 2 - 3 °C, and the weak light should be seen for about 6 hours every day. The treatment time is about 1 month. Delayed flowering can be achieved. Spring flowering varieties, after meeting low temperature requirements. As long as you warm up, you can catch early flowers.

Poinsettia poinsettia is a typical short-day plant, so by adjusting the length of the light, the purpose of controlling the flowering period can be achieved. If it is to bloom on National Day, it can be processed from the beginning of August and treated with short days for about 40 days, and beautiful red bracts can be displayed in late September. To bloom in the new year, you don't have to shave. After being transplanted into the greenhouse for cultivation, the bracts will naturally turn red. To delay the flowering period, you can use the light to extend the lighting time to achieve the goal.

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