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How long is the lifespan of Asarum seeds, and how many years can they be stored?
The lifespan of Asarum seeds is very short. Naturally matured seeds have a very high germination rate, reaching 99%. However, when stored under dry conditions at room temperature for 20 days, the germination rate drops to 81%; at 40 days it drops to 29%; and at 60 days it is only 2%. This shows that when Asarum seeds are stored dry indoors after harvest, the germination rate gradually decreases as the storage period lengthens, and the dry storage period is only 60 days. Because Asarum seeds cannot be stored dry indoors, they should be sown immediately after harvest or treated by sand stratification.
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How to store Gastrodia elata seeds for safe overwintering
The seeds can be stored in a pit dug inside a cellar. First dig a pit in the cellar; the size of the pit depends on the amount of seeds, and the pit depth is 45-50 cm. The vegetative propagation stems should be removed from the seeds, and they should be air-dried for 1-2 days before being put into the cellar. Sand with a moisture content of 20% should be chosen as the filling material. Sand that is too wet or too dry is harmful to the seeds. After the pit is dug, place a layer (3 cm thick) of sand with grains ranging in size from millet to sorghum at the bottom, lay out one layer of seeds, and arrange 4-5 layers of seeds in total, with the topmost layer covered by 5-6 cm of sand. Each layer of seeds must be laid out singly, with no contact between
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Licorice should not be stored for too long; the storage time of medicinal materials must be reasonably controlled
Licorice is generally stored as compressed bales wrapped in burlap, each weighing 50 kg, kept in a dry, ventilated place, with a safe moisture content of 12%-14% for the commodity. There are more than ten kinds of warehouse pests of licorice, including the coffee bean weevil, the brown mulberry borer, and the four-spotted chestnut borer. Fumigation with nitrogen or carbon dioxide for 514 hours can kill all adults and larvae, with no obvious change in the inner quality of licorice. Licorice is prone to mildew. If the air humidity is too high, mold spots or white and green mycelium easily appear on the surface of licorice. The following measures can be taken for prevention and control
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