The method of selecting and purchasing Gastrodia elata strains and Gastrodia elata seeds
1. Armillaria mellea: some Armillaria mellea varieties have high yield and high quality, while others do harm to Gastrodia elata, so farmers must be careful when introducing them. Our company promotes Armillaria mellea Amur9 selected by the Institute of Pharmaceutical Plant of Chinese Academy of Medical Sciences from many varieties at home and abroad. The large-scale popularization and application of this variety shows that it has strong vitality, dense branches, high fruiting rate, high yield and high quality, and is the first choice for planting Gastrodia elata.
2. Germinating bacteria: the germination of Gastrodia elata seeds must be provided by the seed embryo infected by the mycelium of Pleurotus ostreatus. Our company makes great efforts to promote the germinating strain-Dendrobium. The germination rate of this variety is as high as 85%, and the germinating protocorm is large. after being connected with excellent Armillaria mellea, a high yield of 4-8 kg per square meter can be obtained in the same year. (the above two varieties are mainly introduced in the seven sets of "Science and Technology Park" of CCTV on August 2 and 3, 2001.
3. The first generation and the second generation of white and rice hemp with strong growth, normal color, no mechanical damage, no diseases and insect pests are the best.
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What kind of Gastrodia elata tuber should be selected for planting
No damage, no diseases and insect pests, no deformity of Gastrodia elata tuber is the best cultivation. However, when the seed is scarce, the tuber is not seriously damaged, it can also be planted and cultivated after treatment. The treatment method is: first cut off the damaged part with a knife or bamboo, the knife edge is insolated to the extent that it does not run pulp, and then plant it, which can grow as usual. After a year of cultivation, it can be turned into a large arrow hemp. The cultivation of arrow hemp for asexual reproduction must break off the "parrot mouth"-like mixed bud at the top of the arrow hemp, so that the arrow hemp will not produce an arrow (no longer smoke.
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What should be paid attention to when planting Gastrodia elata in boxes
High quality rods must be selected for ①, and the rods with many young cords and evenly distributed are the best. ② sticks must be free from contamination by miscellaneous bacteria. ③ if there is not much fungal cord on the stick, some secondary or tertiary solid strains of Armillaria mellea can be added appropriately. It can also be covered with a layer of culture material for Armillaria mellea (because there is Armillaria mellea in the material). If ④ put a fungus material parallel to 3 cm next to the high-quality stick, it can continue to provide Gastrodia elata nutrition after it is grafted on and Armillaria mellea grows in the later stage. But not near the fungus.
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