1、 Seed collection and cleaning

The seeds of Polygonatum generally mature from September to November. At this time, they are picked and soaked in water. Removing the seed skin by scrubbing is helpful to improve the germination rate. Do not damage the seeds during cleaning, then filter out the skin and impurities, and take out the seeds

2、 After ripening

Put the seeds of Polygonatum in the incubator and spray the ripening solution. The humidity in the incubator should be high and not too dry. Then irradiate it with ultraviolet light for 20 minutes, take it out and let it stand for 1 hour. Soak it in water at 20 ℃ and take it out after 4 days

3、 Dry in the shade

After ripening seeds cannot be dried in the sun, otherwise it is easy to lose water and reduce its germination rate. You need to put it in the shade and wait for it to dry. It can also be dried in a freeze dryer, which can accelerate the germination of seeds

4、 Sand storage sprouting

The treated seeds are buried in wet sand and taken out after 100-150 days. At this time, the seed germination rate can reach 80%, and can shorten the germination time, which can grow in about a month