Monday, September 27, 2010

Caryophyllaceae

 Family: Caryophyllaceae

origin in China, a perennial herb, often cultivated as a biennial. Height of 20-60 cm, opposite, linear-lanceolate, apex acuminate, base amplexicaul. Single or a few flower clusters generated cymes; petals 5, apex serrate. Slight fragrance. Capsule oblong, 4-5 teeth crack the top. Seeds black, because of different varieties, grain weight difference between the larger, about 700-2000 seeds  gram. Cold strong, hi fat, barren place but also the growth of flowering. Resistant to drought. Hi sunny, Gaozao, airy environment. 5-20 ℃ grew well, hi, fertile, rich in calcareous soil, avoid moisture.

are about 300 species of Dianthus,UGG boots, a rich source of the species, through the efforts of breeders, the interspecific hybridization, have cultivated many varieties of hybrid pink flowers large and numerous and colorful.

III, cultivation and management

(a) planting seedlings

1. Sowing

(1) nursery facilities: open field, greenhouse or conservatory.

(2) Media: flower-specific media recommended

(3) light: light repulsive Dianthus hybrid seed, covered lightly after sowing, a layer of fine soil, the thickness of about 0.5 cm is appropriate.

(4) Temperature: optimum temperature for the germination of 20-25 ℃.

(5) moisture: Keep the medium moist, the air humidity of 85% or more to seed germination.

(6) pH value: pH = 6.5-7.0 appropriate.

2.

seedbed drill sowing method, seedling tray or plug-on-demand.

(b) seedling management

1.

temperature when the temperature at 20-25 ℃ for 5-7 days to germinate.

2.

light to seedlings after emergence to light to full sunlight gradually.

3.

breeding of water to keep the soil slightly moist seedbed.

4.pH

to maintain medium pH value is 6.5-7.0.

5. Fertilizer

fully expanded cotyledon seedlings, you can use After true leaves began to grow to 1,500 times the concentration, once a week.

(c) the cultivation and management

1. transplant

fully expanded cotyledons immediately after seedling transplantation, wait long to 3-4 on the leaf, plant height 4-5 cm on the pots when planting. 10-15 cm diameter, flower pots, or be implanted in connection basin.

2.

temperature after planting seedlings, keep the temperature 15-20 ℃, the plants thrive,UGG boots clearanc, and good branching. Of cold, usually when the temperature is not lower than 5 ℃, the growth was normal, but the temperature is low, relative growth slow to flowering time longer. Temperature above 30 ℃, it will be weak or even dead to rapid growth. Dianthus hybrid capability certain temperature, but also pay attention to anti-frostbite.

3.

Dan Zhusheng light long before they can take full sun grow well. And sunlight, the leaf color is a light, internode length, branching, poor and small flowers, so plant after transplantation on the pots need plenty of sunshine, do not shade.

4. Fertilizer

Dan Zhusheng long fast, 5 days after planting can be applied make plants grow well. 8-10 cm in height, the plants into the growth medium, subjected to

5.

moisture during the growing season, keep the media moist semi-arid to the state, plants grew well, not over-watered, otherwise the plants will often appear waterlogged roots phenomenon.

6. Other

pink branching strong growth period may not topping. Only after planting flower varieties, up to 8 cm when the plants can be a topping, so that collateral strong growth, in order to achieve the purpose of neatly cut.

Fourth, the main pests and their control

1. Spot

symptoms: major hazards leaves, stalks and stems. Leaf spot disease early as round, brown edge ring, slightly raised gradually expand outward, sometimes confluent with each other lesions, so that leaves dry, and in the long stem disease is the formation of plaques in the onset of the leading flower pedicel yellow wilt. Sometimes a black mold layer lesion.

Control:

(1) control the media and air humidity, not too high, strengthening air and light. Can be poured to 2000 times when planting carbendazim solution prevention;

(2) the early stages, 50% benomyl spraying 1500-2000 times the whole plant.

2.

disease symptoms: the disease in seedlings, adult plants may be the disease, the Ministry of the main stem and branch disease has shown signs of Shuizi Zhuang, after the deep fade, the plant tissue by transporting loss of the plants died, and sometimes lodging.

Control:

(1) control the cultivation of environmental humidity, and air and light, as far as cultivation, open field cultivation should avoid the rainy season, or to avoid splashing water pot to the media because of stems and leaves .

(2) culture medium should be thoroughly disinfected before use.

(3) thiophanate-methyl can be used after transplantation to special bacteria 1500 times or 2000 times the water solution, once every 10 days.

(4) the early onset of drug use following prevention and control 69% of spraying 1500 times Anchorage MZ solution, 58% of the Swiss drug mycophenolate MZ 1000 times solution, 64% of the anti-virus solution of alum 1500 times, 50% per Anti-bacterial clear smoke smoked, the amount of 1000 g / mu.

3. bacterial spot (bacterial diseases)

symptoms: occurring in the leaves, flowers and stems. Middle gray-brown lesions,UGGs, elongated strip, surrounded by brown lines. Sometimes lesions appear white when humidity liquid. Between the regular confluent lesions, causing brown dead leaves. Stems are gradually withered and died.

Control:

(1) reduce the humidity, do not over water, reducing plants, leaf water.

(2) increase of plant resistance,UGG boots cheap, nurturing seedlings, should not be excessive application of nitrogen fertilizer to make the plants resistance weakened.

(3) the early onset of streptomycin sulfate solution of whole plant spraying 2000-2500 times.

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