The latest planting method of medallion chrysanthemum
Medal chrysanthemum, also known as medal flower, is a plant of the genus Chrysanthemum of Compositae. Medallion chrysanthemum is one of the common potted flowers and flower bed plants in the garden because of its peculiar shape, colorful flowers, dark eye spots and strong wild interest. Medal chrysanthemum, also known as medal chrysanthemum, is a plant of the genus Chrysanthemum of Compositae. Medallion chrysanthemum is one of the common potted flowers and flower bed plants in the garden because of its peculiar shape, colorful flowers, dark eye spots and strong wild interest.
Morphological characteristics
Medallion chrysanthemum is a perennial perennial herb. Rhizomatous. Leaves tufted, lanceolate or Obovate-lanceolate, entire or shallowly pinnatifid, the back of leaves densely covered with white woolly. The tongue-shaped flowers are white, yellow and orange-red with luster.
Growth habit
1. Lighting: medallion chrysanthemum likes sunshine, likes to grow in cooler places, is resistant to drought and barren soil, and is semi-cold-resistant, so it can survive the winter smoothly in mild areas in winter. Plenty of sunshine is needed for growth and flowering. If the cultivation place is lack of light, the leaves are soft, the buds are reduced, the flowers become smaller and the color is lighter. On the contrary, there is plenty of sunshine, bright colors and continuous flowering.
2. Temperature: the suitable temperature for the growth of medallion chrysanthemum is 15: 20 ℃, 13: 24 ℃ from March to September, and 7: 13 ℃ from September to March of the following year. However, the medal chrysanthemum has strong adaptability to the high temperature above 30 ℃, the leaf growth is slow, and the flowering is reduced. The winter temperature is not lower than 5 ℃, but it can withstand the low temperature of 0 ℃ in a short time, such as freezing injury occurs easily in a long time.
3. Moisture: medallion chrysanthemum is sensitive to water. Although the stems and leaves need soil moisture during the growing period, there is too much soil moisture in the rainy season, and the plant is easy to be waterlogged and cause the whole plant to die. At the same time, high temperature in summer, the air humidity should not be too high, basin soil should not be stagnant water, otherwise it is disadvantageous to the growth and flowering of medallion chrysanthemum.
4. Soil: the sandy loam with fertile, loose and good drainage is selected. Potted soil can be mixed with the same amount of culture soil, rotten leaf soil and coarse sand.
All over the country, originated in South Africa, the northern warm temperate deciduous broad-leaved forest region (major cities: Shenyang, Huludao, Dalian, Dandong, Anshan, Liaoyang, Jinzhou, Yingkou, Panjin, Beijing, Tianjin, Taiyuan, Linfen, Changzhi, Shijiazhuang, Qinhuangdao, Baoding, Tangshan, Handan, Xingtai, Chengde, Jinan, Dezhou, Yan'an, Baoji, Tianshui).
Reproduction method
Sowing, plant division, cutting and tissue culture are commonly used.
1. Sowing and propagation: spring sowing in April or autumn sowing in September, 560-580 seeds per gram, germination temperature 16-18 ℃, germination 14-30 days after sowing. The seedling has a 4 cm seedling plate with a pair of true leaves. Seeds in some areas have the ability to self-sow and reproduce.
2. Ramet propagation: before the stems and leaves grow from March to April, the overwintering mother plant is dug out and cut longitudinally from the root neck of the plant cluster with a knife, but each ramet must have bud head and root system and can be potted directly.
3. Cutting propagation: it is often carried out in spring and autumn, and indoor cultivation can be carried out all the year round. Cut the buds with stem nodes and leave the top 2 leaves. If the leaves are too large, you can also cut off 1 big 2 to reduce the evaporation of foliar water. Insert sand bed, room temperature 20: 24 ℃ and maintain high air humidity, rooting 20-25 days after insertion. If treated with 0.1% indole butyric acid for 1 / 2 seconds, rooting is faster.
4. Tissue culture propagation: stem tips and buds are commonly used in explants. After disinfection, the shoot tip was inoculated on MS medium supplemented with 6-benzylaminoadenine 1mg / L and naphthylacetic acid 0.2mg / L to induce callus and differentiate buds. Then transferred to MS medium with 1 mg / L naphthalene acetic acid and cultured for 30 days and 40 days, the seedlings rooting and formed complete plantlets.
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