Main propagation methods of orchids

When the orchid breeds, it is required to be open, well ventilated, close to the water surface, moist air and no soot pollution. In the southwest of the site, evergreen broad-leaved trees can be planted, and the canopy density should be about 0.7, which can reduce afternoon sun exposure and adjust humidity and temperature.

The common control methods of orchids are sowing and propagation.

Sowing and propagation: the orchid seed is very fine, there is only one underdeveloped embryo in the seed, the germination power is very low, and the seed coat is not easy to absorb water, so it can not germinate by conventional sowing, so it needs to use orchid or artificial medium to supply nutrients to germinate. It is best to sow the uncracked fruit, sterilize the surface with 75% alcohol, take out the seed, soak it with 10% sodium hypochlorite for 5 minutes, rinse it with sterile water for 3 times, and then sow it in a culture flask containing the culture medium, then place it in a dark culture chamber at a temperature of about 25C, germinate and move to the light to form a protocorm. It takes half a year to a year from sowing to transplanting. Tissue culture has been successful, and this method can be used to propagate where possible.

Ramet: it can be carried out in both spring and autumn, usually every three years. All plants with dense pseudocorms can be ramified, and at least 5 connected pseudocorms should be preserved in each clump. Irrigation should be reduced before splitting, so that the basin soil is better than. When putting on the basin after ramet, first cover the bottom hole of the basin with broken tiles, then cover with coarse stones, occupy the depth of the basin from 5 to 1, and then put coarse-grained soil and a small amount of fine soil, and then plant it with sandy loam rich in humus. Planting depth to the false bulb just buried in the soil strength, the edge of the basin left 2 cm along the mouth, covered with green cloud grass or fine stones, and finally watered thoroughly, placed in the shade for 10-15 days, keep the soil moist, gradually reduce watering, and carry out normal maintenance.