August Compositae [Asteraceae] [aster genus]
Alias: Jiangxi wax, blue chrysanthemum, aster Latin name: callistephus chinensis
Distribution of origin:
Native of the northern part of France introduced in 1728, followed in 1731 by the British introduced, after the introduction of the world have, through cross breeding, new varieties continue to market. So far, the British Thompson Morgan, Dan Qijie flower company in Israel, the Netherlands, Fei Desi company so engaged in breeding and production of aster, breeding many new varieties, so that China aster flower market in Europe One of the important flower. In Asia, Japan's Sakata (sakata) aster seed company has bred many good breeds, the aster flower in Japan, holds a share.
Characteristics:
Aster is an annual herb. Stem erect, the whole plant sparsely short-haired. Leaves alternate, oblong. Capitulum solitary Acremonium. Ray florets rich colors, red, blue, purple, white, yellow and other shades of colors. Cultivated variety, Double, semi-double petals, flowers are Comet, camel feather type, pipe valve type, needle type, chrysanthemum-type and so on, according to plant height is divided into 45 to 75 cm tall species, the stem species 30 ~ 45 cm, dwarf species of 15 to 30 cm. Common varieties of asteroid (asteroid) series, height 25 cm, chrysanthemum-type, flower diameter 10 cm, a dark blue, red, white, red, light blue and other colors, 120 days from sowing to flowering. Dwarf Queen (dwarfqueen) series, height 20 cm, petals, flower diameter 6 cm, flowers are bright red, dark blue, rose pink, light blue, blood red, etc., from sowing to flowering to be 130 days. Mini Miss (minilady) series, height 15 cm, ball type, colored roses red, white and blue, from about 120 days from sowing to flowering.波特佩蒂奥 (potn'patio) series, the height of 10 to 15 cm, petals, flower diameter 6 ~ 7 cm, colored blue, pink, red, and white, from just 90 days from sowing to flowering. Dwarf Wall Desi (dwarfwaldersee), height 20 cm, flowers, compact, colored deep yellow, white, medium blue, pink and so on. Carpet ball (carpetball), height 20 cm, ball type, colored white, red, purple, pink, purple and so on. Comet (comet) series, height 25 cm, flowers large, double petals, like marigold, flower diameter of 10 ~ 12 cm, colored 7. Mrs. (milady), height 20 cm, cold, anti-blight species. Mora Keita (moraketa), height 20 cm, flowers yellow rice, resistant to wind and rain.普鲁霍尼塞 (pruhonicer), height 25 cm, ligulate to carry out a little, it may uncover his head, flower diameter 3 cm. Puppetry, height 15 to 20 cm, and more flowers, flowers like small inflorescences, color and more. Ladies series, branching and strong, double petals, large flower, flower diameter 7 cm. These varieties are suitable for ornamental plants.
Growth Habit:
Hi warm, humid and sunny environments. Fear of high temperature and humidity and poor ventilation.
Aster growth temperature for 15 ~ 25 ℃, the winter temperature of not less than 3 ℃. If the stem below 0 ℃ vulnerable to frost damage. In contrast, summer temperatures exceed 30 ℃, delayed flowering, or flowering bad.
Aster for the shallow-rooted plants, the growth process to hold basin moist, favorable leaf growth. Meanwhile, the basin earth aster had a greater impact on wetlands, causing excessive growth, lodging and occurrence of diseases.
Aster for the long-day plant, on the most sensitive to sunlight, 15 hours a day under long-day conditions, plants maintain a dwarf, early flowering can be. If the short day treatment, plants grow taller, flowering vertebral late.
Garden uses:
Aster varieties of many types, pattern changing, color rich, long flowering, widely used in the garden. Dwarf varieties for flower beds and blankets to the edge of flower beds, potted plants are also advised. Medium and high varieties can be used for various garden layout. Varieties they are often as high background of flowers, is a good cut flower material.
Captive breeding:
Aster common seed propagation. Application requirements for different varieties and sowing time decision. If pot varieties of the asteroid (asteroid) series as an example: from November to next April sowing, flowering from April to August. Aster seed per gram 420 ~ 430, the germination temperature for 18 ~ 21 ℃, 7 to 21 days after sowing germination. Seedling growth is rapid, timely thinning.
Aster 15 to 20 days after emergence, transplanting a second, growth of 40 to 45 days after planting in the basin, commonly 10 to 12 cm pots. 1 growing season fertilizer every ten days, can also be used "flowers" Friends of 20-20-20 general fertilizer. 45 ~ 80 days after pot Adding P and K 1. Aster is a constant outcrossing plants, plena natural hybrid species is low, easy to maintain varieties of fine character. Double less variety, the high rate of natural hybridization, species must remain isolated. |
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