Planting method of Dendrobium candidum

(1) Propagation methods of Dendrobium candidum

The reproduction methods of Dendrobium can be divided into two categories: sexual reproduction and asexual reproduction.

Tissue culture plantlets of Dendrobium candidum

1. Sexual reproduction is seed reproduction. The seeds of Dendrobium are very small, with about 20000 seeds per capsule, which are yellow powder-shaped, basically do not germinate, and can only germinate and grow in a specific environment with sufficient nutrients, suitable temperature and moderate light. At present, the most rapid and effective propagation method is to culture in the tissue culture room. Although the reproduction coefficient of Dendrobium is very high, the success rate of sexual reproduction is very low.

Tissue culture plantlets of Dendrobium candidum

2. Asexual reproduction

Types of asexual reproduction: ramet propagation, cutting propagation, tissue culture. Among them, tissue culture is the most common. Tissue culture and propagation: Dendrobium can be cultured and propagated rapidly in vitro by the following methods. After routine disinfection, the leaves, tender stems and roots of Dendrobium were cut into 0.5 cm and 1 cm as explants, then tweezers were inserted vertically into the culture medium bottle which had been sterilized at high temperature, and then the bottle was sealed in the culture room at the temperature of 25 ℃ ~ 28 ℃, light intensity of 9 hours per day and light intensity of 1800~1900lx for tissue culture. After about 20 days, the buds appeared at the stem and leaves. After about 1 month, the buds elongated and the tip bifurcated. After 2 months, the buds grew into test-tube plantlets with a height of about 2.2 cm and 8 leaves.

Dendrobium candidum

Selection of epiphytic site of Dendrobium candidum

1. Dendrobium candidum is a kind of epiphytic plant, which has a great influence on its growth. Dendrobium is different from other food crops, food crops rely on main roots, lateral roots and fibrous roots to absorb water and nutrients in the soil, while Dendrobium candidum absorbs nutrients and water in the air by exposed aerial roots. the carrier of food crops is soil, and the carrier of Dendrobium is rock, gravel, trunk and pine needle, that is, the main body of Dendrobium is rock, gravel, trunk pine needle and so on.

Dendrobium candidum

If the main body of Dendrobium candidum is selected as rock or gravel, sandy rock or stone wall or random stone corner should be selected, and it should be relatively concentrated, have a certain area, and dark and humid, and it is best if there is moss on the rock. there are also some broad-leaved trees around as shade places for production.

Dendrobium candidum

If the trunk is chosen as the main body, the broad-leaved tree species with dense crown, herbaceous or waxy leaves, thick and longitudinally furrowed skin, high water content and often bryophyte growth should be selected for the production of Dendrobium candidum.

If you choose a shade shed to cultivate Dendrobium candidum, you should choose under a more damp forest, mix humus soil, fine sand and gravel into a ridge 15 cm high, lay flat above, and put up a 100-120 cm high shade shed for Dendrobium production.

Dendrobium candidum

If pine needle is chosen to cultivate Dendrobium candidum, it should be planted in greenhouse. First of all, a seedling bed with a height of 50-100 cm will be built in the shed, then a sunshade net will be installed on the surface of the greenhouse film, an automatic rotating sprinkler will be installed in the shed, and then the pine needle will be dried and fermented. Then put it into a nutrition cup and transfer the seedlings for production.

2. Land selection and preparation

You can choose what you think is a suitable place for tree planting, wall planting, pot planting, or planting Dendrobium candidum on stone seams, rock walls and its artificial cultivation substrate.

Dendrobium candidum

(3) planting method of Dendrobium candidum

Dendrobium should be planted in spring from March to April and autumn from August to September, especially in spring than in autumn. This is mainly to make full use of March, the climate rebounded, the wind is warm, and the golden season of spring rain, upright recovery of all things, suitable temperature and humidity, sunshine, Rain Water and other conditions are conducive to stimulating the rapid germination of axillary buds at the base of the stem of Dendrobium. At the same time, it grows air roots for young buds to absorb nutrients and water, so as to achieve the growth goal of first roots and then buds. Planting in autumn is to use the suitable temperature in autumn to induce root growth, but the quality and quantity of roots are not as fast as those in spring. In the places where the humid conditions are satisfied and the shading conditions are better, some buds can also grow in summer. After the preparatory work before planting is done, we can choose the best planting season to vigorously develop the production of Dendrobium.

At present, the planting methods of Dendrobium candidum are

1. Planting method in shade shed

The small gravel was mixed with a small amount of fine sand as a high border with a width of 40 cm, a length of 120 cm and a height of 17 cm. The seedlings of Dendrobium were divided and planted in the border with a density of 20 × 20 cm, covered with fine sand or small gravel 7 cm thick and pressed. A 1.7-meter shade is set up on the border and a grass curtain is hung to the sunny side to facilitate the regulation of temperature and humidity and fresh air, and to often keep the border surface moist.

Dendrobium candidum

2. Planting in greenhouse

Put the pine needle drying fermentation and fermented organic fertilizer into the 1315 nutrition cup, then put them neatly on the second bed, plant the Dendrobium seedlings in the nutrition cup according to 6-8 plants, cover with Xisha to compact the roots, then apply the sunshade net on the greenhouse film, shade and avoid the sun when the temperature is high or the light is strong, install water wheels or rotary sprinkler facilities, replenish water and fertilize on time.