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What are the reasons for the low survival rate of sexual reproduction in Gastrodia elata?
Gastrodia elata is a precious Chinese medicinal herb in China, and its cultivation area has been expanding year by year. Due to the degeneration of varieties in asexual reproduction, yields are low and unstable, and quality declines, which has affected commodity exports. At present, most growers use sexual crossbreeding to propagate seed tubers to solve the problem of yield reduction caused by variety degeneration in Gastrodia elata. However, there are also problems such as lack of proficiency in the technology and uneven quality of breeding, which have restricted the rapid development of Gastrodia elata, leading to the abnormal phenomenon that the more it is developed, the fewer the products and the higher the market price. Those who fail gain very little from the huge investment they made, which has greatly dampened farmers' enthusiasm for development. In response to the above
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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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What are the main reasons for the low yield of Gastrodia elata?
Reasons for the low yield of Gastrodia elata
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