The core note: Ephedra seeds do not have a dormancy period, as long as the temperature is appropriate and moisture is guaranteed, it will germinate. After picking the fruit, the shell is covered with a layer of red fleshy peel, which is sun dried and attached to the outside of the seed. It is not easy to take off. To get a clean pure seed, the skin of the seed must be removed. At present, the following two methods are taken.
Water immersion
The harvested fruit should not be dried in the sun and soaked in clean water. When the fruit is soft, remove it by hand rubbing or stirring with a toothed stick. Then, filter with a sieve to remove impurities. Clean the seeds and store in the sun.
Mechanical crushing
The outer skin of Ephedra seeds contains high sugar and is not easy to dry. After drying, it is difficult to peel off. It must be taken off mechanically. At present, the use of rice thresher can take off the seeds of ephedra. The method is to dry the fruits first, and then adjust the gap of the thresher. If the size is too small, the seeds can be crushed and the seeds can be crushed. The gap should be adjusted according to the size of the fruit. Put the fruit in and turn the machine to remove the peel. This method not only cleans the seed coat, but also smashes the mixed shoots in the fruit. This method is suitable for peeling a large number of seeds, which is economical and convenient, and also ensures the integrity of the seeds.
Although the seed of ephedra has no dormancy period, it is not resistant to preservation. Harvested that year, when it was planted, its germination rate could reach 98% to 100%. One year later, its germination rate slowly declined. After 5 years, its germination rate is only 5%. Therefore, it should be used with the species, otherwise it will affect the germination. For seeds that have been stored for a long time, germination tests should be conducted first, and then the seeding rate should be determined so that the number of plants in the field can be guaranteed and the yield can be guaranteed.
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