1, germination treatment
The seeds of Paris polyphylla should be selected from mature seeds with slightly wrinkled skin and full fruits, which should be put into a net bag and stored indoors in a layer of soil for germination, and can be sown when the seeds grow new roots (April-May). Storage requirements: the number of storage layers should be controlled below five, and the soil should be kept moist without water accumulation.
2. Seedbed sowing
Planting and sowing in greenhouse seedbed, covering soil 1- 1.5 cm after sowing, seedling emergence in May-June, and the seedling emergence rate in that year was over 60%. Seedbed requirements: Before sowing, the greenhouse seedbed should be weeded, disinfected and disinfected, and the soil should be loose and fertile, with a moisture surface thickness of 20-30 cm.
3. Seedbed management
The resistance of annual seedlings is weak, so it is necessary to strengthen the management of water, temperature and cordyceps diseases. Management requirements: the soil should be kept moist for a long time, the relative humidity of air should be kept at 50% to 80%, the temperature should be kept below 30 degrees Celsius, and the shading degree of seedbed should be kept at about 50%. Diseases and pests should be prevented in time, and weeds should be pulled out in time when found.
4. Transplant heel in.
In June-July of the following year, thinning seedlings can be started, and the big seedlings that grow sturdily can be planted in the open field one after another in heel in according to the plant spacing of 10 cm and the row spacing of 10 cm, and then they can be planted in the field in the coming year after survival.
Extended data
By analyzing the chemical constituents of Paris polyphylla, more than 50 compounds have been isolated and identified, including fatty acid esters, sterols and their glycosides, flavonoid glycosides, C27 steroidal saponins, C2 1 pregnane glycosides, β-ecdysone and polysaccharides.
Among them, there are 44 kinds of steroidal saponins, accounting for more than 80% of the total compounds. Steroidal sapogenins are spirostanols, isostanols, tastestanols and deformed spirosteroids, all of which have strong physiological and pharmacological activities.
Rhizoma Paridis is a nodular oblate cylinder, slightly curved, with a length of 5-300px and a diameter of1.0-12.5px.. The surface is yellow-brown or gray-brown, and the peeling part of the skin is white; Thick rings with layered protrusions.
One side of the nodule is obvious, and there are oval concave stem marks on the nodule; On the other side, there are sparse fibrous roots or warty fibrous roots. There are scales and stems at the top. Solid, flat section, white to light brown, powdery or horny. Slight breath, slightly bitter and numb taste.