 玛丽安万年青 玛丽安万年青 玛丽安万年青 玛丽安万年青 玛丽安万年青 玛丽安万年青
Dieffenbachia Dieffenbachia class, also known as silver spot evergreen, native to tropical America, height 30-90 cm, flowers erect, short internodes, leaves oblong, slightly wavy edge, white or foliage of various pan-cloth creamy yellow stripes or spots, sexual shade, leaf green Painting. The main cultivated varieties Marian, kiki, golden sun, white, multi-earners zebra, gold gem, heaven evergreen.
The growth of Dieffenbachia temperature for 25 ~ 30 ℃, the daytime temperature 30 ℃, the evening temperature 25 ℃. Can grow the scope of February to September 18 ~ 30 ℃, 9 months to next February to 13 ~ 18 ℃. Winter temperatures not lower than 10 ℃, otherwise the blades susceptible to frost damage.
Dieffenbachia like ambient humidity of 80%. Soil should be dry to the surface 2cm watering it. In the growing season should be well watered, and to spray the foliage. As long-suppressed water, then foliage rough and dull. Wet soil moisture to the most appropriate and orderly, summer should be more watering in winter need to control watering.
Dieffenbachia afraid of the sun shade. Light is too strong, the foliage becomes rough. Leaf margin and tip easily Kujiao, even a large area burns. Light is too weak, will make the color green yellow white patches to bright light scattering grow best leaf color vivid and more beautiful.
Soil fertile, loose and well-drained loam is appropriate. Potting soil and coarse sand mixed with soil humus.
[] Breeding methods used cuttings, planting and tissue culture propagation.
Cutting Propagation: In July and August temperature of cuttings best, clipping the top of the stem 7 to 10 cm, cut some leaves, reduce evaporation, _insert_ed in the sand bed or water moss bandage cuts, maintain high air humidity, room temperature 24 ~ 30 ℃, 15 to 25 born after _insert_ing the root transplanting shoots on the basin until after germination stems.
Seed propagation: Dieffenbachia must be approved by artificial pollination results. Immediately after sowing the seeds mature, the seeds need to be cleaned to avoid mildew. Basin should be disinfected before planting, after planting casing 1 cm, kept at room temperature 24 ~ 29 ℃, 7 ~ 14 days to germinate after sowing, transplanting 3 cm height when.
Tissue culture: At present, the use of lateral buds, buds as explants. After the addition of conventional disinfection vaccination 6 - benzyl adenine 3 mg / l naphthaleneacetic acid and the 2 mg / l ms medium, transferred to 45 days of adventitious bud indole acetic acid added to 2 mg of 2 cm / liter On 1/2ms medium, about 20 to 25 days to take root, forming a complete plantlets.
[Management] Dieffenbachia cultivation potted commonly 15 to 20 cm pots. Growing fertilize every half times, or "flowers" Friends 20-8-20 seasons with high nitrate fertilizer. Temperature less than 15 ℃, stop fertilizing. As winter temperatures below 10 ℃, excessive watering will cause the leaves and stems of the top fester. If only plant leaves, stems not bad, until after the temperature rise, can continue to sprout leaf. Potted plants grow 1 to 2 years after the base of the sprout more, can be combined with Huanpen division propagation. As the plants grow higher, can stay 2-3 basal shoots cut off, leaving the stem nodes can still sprout hair sticks, maintain good plant type.
[Pest control] are mainly bacterial leaf spot, leaf spot and anthracnose hazards, can be 50% carbendazim WP 500 times spraying. Sometimes occur root and stem rot damage, in addition to pay attention to ventilation and reduce humidity, the availability of 75% chlorothalonil WP 800 times spraying control.
[Postproduction] Dieffenbachia leaves large, with beautiful spots for potted ornamental, decorated living room, den, very Choutet, elegant. Use it to put a lower luminosity public places, Dieffenbachia still growing normally, Bi Ye Qingqing, leafy and full of life, especially for the configuration in modern buildings. Dieffenbachia tolerability of 14 days in the dark state, at 15 ℃ and 90% relative humidity storage |
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