Seedling price and planting method of Dendrobium candidum

Dendrobium candidum, also known as black section grass, Yunnan iron, iron, etc., is a perennial herb of Orchidaceae. It is distributed in Anhui, Zhejiang, Fujian, Yunnan and other places in China, and is born on semi-shady and humid rocks in mountainous areas. medicine has the effects of nourishing stomach, nourishing yin and clearing heat, moistening lung and kidney, clear eyes and strengthening waist. Let's take a look at the seedling price and planting method of Dendrobium candidum.

How much is the seedling of Dendrobium candidum?

The price of Dendrobium candidum seedlings is about 3-5 yuan per plant, but the price varies greatly due to the quality, origin and market of the seedlings. When selecting and purchasing seedlings of Dendrobium candidum, we should choose the seedlings produced by manufacturers with reliable provenance, pure varieties and excellent technical indicators, and we must not choose seedlings without specific names and unknown provenances, and do not blindly care about whether the seedlings are cheap, because the purity of varieties is the most important in the production process.

Propagation methods of Dendrobium candidum

1. Seed propagation: take Dendrobium candidum with no open sprouting fruit, disinfect the seeds after taking out the seeds, put the seeds in the culture medium, and then adjust to a suitable growth environment, which will germinate into seedlings after one to two weeks.

2. Tissue culture: take part of the root or stem of Dendrobium as explant, culture it in a tissue petri dish for a period of time, then transfer it to a test-tube bottle to become a test-tube plantlet, and then get it after domestication, colonization and other procedures.

3. Split propagation: take Dendrobium candidum with strong growth and more stems, cut off withered branches, broken branches, old branches and overlong fibrous roots, cut the plant clump into small clumps, and each clump with leaves can be planted with 5-7 stems.

4. Cuttage propagation: a whole plant of Dendrobium candidum is divided into several independent individual plants, planted on a suitable substrate, and seedlings can be transplanted when the roots grow to three to five millimeters.

Planting conditions of Dendrobium candidum

1. Matrix: the matrix with good air permeability and good filtration should be used as planting material, and the mixed material of shavings + bark + wood block should be used as planting material.

2. Temperature: Dendrobium candidum stops growing below 5 degrees and begins to dormancy, and the temperature will stop growing when the temperature exceeds 35 degrees. The most suitable growth temperature is about 25-30 degrees.

3. Illumination: the primary environment of Dendrobium candidum is generally in the shade and behind the shade, the light intensity is about 20000 lux, when the sun is strong, it should be shaded directly and can be placed in a shade shed.

4. Humidity: Dendrobium candidum had better keep the humidity above 60%. When the humidity in overcast and rainy weather is above 90%, ventilation should be strengthened to prevent the occurrence of bacterial and fungal diseases.

Planting method of Dendrobium candidum

1. Transplanting time: the best time for Dendrobium candidum is from mid-April to late June every year, during which the air temperature is 12: 25 ℃ and the air humidity is high. The transplanting survival rate of test-tube plantlets after coming out of bottle is higher and the growth time is longer, followed by mid-September to late October.

2. Cultivation substrate: large-scale production of Dendrobium candidum requires that the raw materials of cultivation substrate are easy to obtain and easy to operate. the main application in production is the mixture of bark, sawdust or bark, sawdust, gravel and organic fertilizer, in which the bark is crushed into particles less than 2cm.

3. Cultivation conditions: the cultivation of Dendrobium candidum should be carried out in the greenhouse, and the construction of the greenhouse should be ventilated, shaded and protected from rain, with insect-proof net, and according to the growth habits of Dendrobium candidum, the natural factors such as light, temperature, humidity and ventilation of the site should be considered.

4. attached cultivation: Dendrobium candidum is an epiphytic plant, so it can also be planted under the condition of artificial breeding and cultivation. According to the different characteristics of the host, the artificial planting of Dendrobium candidum can be divided into three forms: tree planting, stone planting and humus soil cultivation.

Planting Management of Dendrobium candidum

1. Temperature management: the suitable temperature of Dendrobium candidum is 15: 28 ℃. Ventilation and heat dissipation should be strengthened in the greenhouse when the summer temperature is high, and the greenhouse should be sealed when the temperature is low in winter. If necessary, the temperature in the facility can be raised by heating to prevent frostbite.

2. Light management: Dendrobium candidum likes shade. When the seedlings are just planted, the greenhouse must be covered with a shade net with a shade degree of more than 70%. The shade net of the greenhouse in summer and autumn with high temperature and high light should be covered and firmly covered, and the shade net should be opened properly in winter to facilitate light transmission.

3. Water management: the substrate water content of Dendrobium candidum transplant seedlings is 60% / 70%, the air humidity is about 90% in 7 days after transplanting, the air humidity is 70% / 80% after 7 days, and the substrate water content in summer and autumn is 40% / 50%. The substrate water content in winter is less than 30%.

4. Overwintering management: the overwintering management of Dendrobium candidum is mainly heat preservation, and the measures include adding two layers of film, smoke anti-freezing, artificial heating and so on. Dendrobium candidum should carry out anti-freezing exercise and properly reduce humidity before entering winter, spraying water once every 15 days, the temperature had better be kept above 0 degrees.

Disease and pest control of Dendrobium candidum

1. Soft rot

[harm] it is easy to occur in the environment of high temperature and high humidity, and the disease occurs quickly. In severe cases, the whole plant decays and disintegrates in the form of wet rot.

[prevention and treatment] at the initial stage of the disease, 77% Kesha 101WP 2000 mg / kg has the best control effect.

2. Black spot

[harm] harms the leaves and causes them to wither, which usually occurs from March to May.

[prevention and treatment] 50% carbendazim 1000 times solution can be sprayed 2 times for 3 times.

3. Anthrax

[harm] damage to leaves and fleshy stems, brown or black disease spots appeared in damaged leaves, which usually occurred from January to May.

[prevention and treatment] 50% carbendazim 1000 times solution or 50% methyl topiramate 1000 times solution can be sprayed 2 times for 3 times.

4. Snails

[harm] harm to young stems, young leaves, buds and young fruits.

[prevention and control] it can be controlled by artificial trapping, poison bait or sprinkling lime and tea bran.

5. Dendrolimus angustifolia

[harm] parasitic on the edge of plant leaves or on the back of the plant to suck sap, and the peak incubation period was in late May.

[control] 1000 times of 40% dimethoate EC or 1000 times of 50% malathion can be sprayed to kill insects.