Cutting carnation in winter and spring
Carnation is generally propagated by cuttage, which is carried out in winter and spring and can be carried out from December to April of the following year. At this time, the lateral buds used as cuttings grow strongly and have the best quality. At the same time, cutting during this period can control the flowering of plants in the second year New Year's Day and the Spring Festival.
First of all, the culture soil should be prepared, and the garden soil should be mixed with 30%-40% rice bran ash or sandy soil. after mixing evenly, it should be put into a basin or wooden box.
The cuttings should be carried out in the greenhouse, and the cuttings should be selected from the mother plants with strong growth, neat flowering and thick nodes and short branches. Select short and thick lateral buds in the middle of strong branches, with a length of 3 to 4 centimeters. The "break picking method" should be adopted when picking cuttings, that is, taking the trunk of the main branch in one hand and selecting the buds in the other as the buds of the cuttings, peeling off the old leaves and buds at the same time, so that the base is complete and with node marks, and then soak the cuttings in water or spray water in the peeling place to make them absorb enough water and leave them for cutting.
The depth of cuttage should be 1 / 3 / 2 of the length of cuttings. Pour water after insertion and keep the temperature at 10 ℃ ~ 15%. Nursery bed maintenance should be fine, water again the next day after insertion, if the leaf wilting phenomenon, can be sprayed on the leaf surface several times, so that the soil slightly moist, but not too wet. At the beginning of the insertion, it is generally necessary to shade the sun in a clear day to avoid strong light, which is generally shaded for about 2 weeks. The cuttings can take root in about 30-45 days, and generally can be transplanted after one month of seedling survival.
If the cuttings are cut after March, the selected cuttings can be slightly longer. Due to the gradual increase in temperature, large temperature difference between day and night, and high humidity, it is necessary to set up a frame to shade the sun for about 3 weeks, and pay attention to ventilation to prevent seedlings from suffering from diseases and insect pests.
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Prevent the calyx of carnation from breaking
In the cut flower cultivation of carnation (also known as carnation and carnation), a physiological disease-calyx rupture often occurs. The physiological cause of calyx rupture is the growth of petals, which quickly exceeds that of sweet potatoes and breaks the calyx, especially in large rotation with more than 60 petals. In addition, in the flowering stage, calyx cracks often occur due to the increase in the number of petals or flowers and the large temperature difference between day and night. Therefore, low temperature, too much watering or too much fertilizer, especially too much phosphorus, can easily cause calyx rupture. Ways to prevent calyx cleft:
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New varieties of Carnation with large Flowers
First, variety introduction: the Flower Institute of Yunnan Academy of Agricultural Sciences undertook the scientific and technological research project "breeding of New varieties of Carnation" of the Provincial Department of Science and Technology in the later period of the Ninth five-year Plan, and has bred a number of new varieties (strains) of cut carnation. Some of the new varieties have been tested by flower farmers on a small scale, showing good production suitability and marketability. Apply for 4 new variety rights of carnation to the Plant New Variety Protection Office of the Ministry of Agriculture. Among them, Yunhong No. 1 is compared with Masters, a foreign variety with the same red line and the largest planting area at present.
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