How to raise Manchurian stars cultivation technolo

2022-07-22
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Manchurian star, formerly known as stone cone flower, alias: Dianthus conifera, Dianthus conifera, Dianthus sericata, nepheline conifera, Manchurian star, Latin name: Gypsophila paniculata L. it is produced in Altai mountain area and Tashkurgan in Xinjiang. But how to raise the stars in the sky

Manchurian star, formerly known as stone flower cone, alias: Carnation cone, carnation cone, silk carnation, nepheline cone, Manchurian star, Latin name: Gypsophila paniculata L. produced in Altai Mountains and Tashkurgan, Xinjiang. But how to raise the stars in the sky

[habits]

like warm, humid and sunny environment, relatively resistant to shade and cold, and grows best in well drained, fertile and loose loam. The soil for cultivation is slightly alkaline calcareous loam, with good drainage and sunshine. The height of the plant has been more than 20 cm, and the amount of irrigation is reduced. A little drought can promote flowering, especially poor drainage or long-term rain after flowering, and the root is perishable. Warm sex, avoid high temperature and humidity, and the suitable temperature for growth is 10-25 ℃

[propagation and cultivation]

cutting propagation. In spring, hardwood cuttings are carried out. The mature branches of the previous year are cut 10-15 cm long and inserted into the sand bed. Generally, they take root in about 30 days. Twig Cutting can be used in plum rain season, and the top Twig Cutting of the current year can be selected, and rooting can be carried out 2-3 weeks after cutting. When changing pots in spring every year, add fresh and fertile soil, keep the pot moist during the growth period, and apply fertilizer once every two weeks to promote multiple branches and leaves, bloom and flourish. Pay attention to pruning the whole plant in autumn to maintain a good shape. The main pests and diseases of Manchurian star are leaf spot disease, which can be sprayed with 65% mancozeb wettable powder 600 times. Pests include aphids and starscreams. Spray with 40% Omethoate emulsifiable concentrate 1000 times

[pest control]

stem rot and atrophy are fatal diseases of Mantianxing. The soil should be disinfected with formaldehyde solution before planting. Pests are mainly mites and aphids, which can be sprayed with 1000 times of dicofol and 1500 times of pyrethroids

how to plant stars

1. Biological characteristics

Gypsophila elegans, also known as carnation, nepheline and Zoysia flower, is a perennial herb belonging to carnation in the Caryophyllaceae. Originating from Caucasus to Siberia, it is commonly cultivated in Chinese gardens. The Ru fruit is spherical, with more than 10 kidney shaped seeds, and the 1000 seed weight is 0.3-0.9 grams

stars all over the sky like sunny and cool environment. Be resistant to cold, drought and hemorrhoids, and avoid high temperature and humidity. Fertile and loose calcareous loam is better for seedling cultivation. The suitable temperature for seed germination is 20-22t, and the suitable temperature for seedling growth is 15---25

2 Seeding and seedling raising technology

the flowers of Mantianxing are double petals, and pollination is difficult. In order to get more seeds, robust plants can be planted intensively, supplemented by artificial pollination. When the gourd is ripe, it cracks and the seeds are easy to scatter. Seeds should be collected in time. Avoid exposing seeds to the sun and store them in the refrigerator. Due to the short flowering period of Mantianxing, it is necessary to plant seedlings in batches and supply flowers every year

direct seeding or seedling transplanting, autumn sowing or spring sowing of seedling cultivation, and spring sowing is the main method of open cultivation in northern cold areas. Seedlings sown in autumn should be moved to cold beds or low-temperature greenhouses for winter. The soil in the seedling bed is carefully screened, sown with the seedling tray and sown. The seeding amount per square meter of seedbed is 5-8 grams, and the seedlings emerge in 7 days under the condition of temperature control. Because it is not resistant to transplantation, it can be divided as soon as possible after emergence. The seedlings were cultivated in containers with a diameter of about 7 cm. Pay attention to control watering and do not over water

the seedlings of Manchurian star are delicate and difficult to survive after transplantation. Direct seeding in the open field can also be used. After inter seedling planting, they can be directly cultivated until flowering

3. Cutting seedling technology

Mantianxing also often uses cutting seedling in production. It can be cutted all year round, and the spring and autumn (temperature between 15 and 25r-) are the most suitable. Select the plants grown from strong mother plants or tissue culture seedlings, and cut the middle and lower lateral buds with 4-5 pairs of leaves as scions. The cutting substrate can be fine river sand, frog stone, perlite, etc. When treated with NBA or Tsai acetic acid with a concentration of 50-100 mg/L, roots can grow in about 20 days under full light, spray and temperature control of about 20 ℃, and can be moved to the field for planting in 50-60 days

4. Tissue culture seedling technology

using tissue culture technology, we can breed precious double petal varieties and virus-free seedlings, and then cultivate them in the matrix. The full shoot tips of disease-free and excellent individual plants were selected as explants. After being treated by conventional sterilization methods, they were inoculated on MS medium supplemented with 0.5 mg/L 6-nodal glandular extract and 0.1 mg/L zearacetic acid. Green buds appeared one week after inoculation. After cutting, they were subcultured on the fresh medium. After subculture, when the robust buds grow to 2-3 cm, they are transferred to the root culture medium. At the same time, cut the top 2-3 segments into segments and insert them into the rooting medium respectively. The temperature is controlled for 20-22t, and the daily illumination time is 14-16 hours. When the root length of the test tube seedling is 0.1-1.0 cm, the bottle is released in time. Cuttings are carried out under the condition of intermittent spray, and the temperature is controlled for 15-20 degrees

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