How to plant Gastrodia elata

Gastrodia elata, alias Red Arrow Ding Fengcao, tomorrow Ma, etc., for the orchid plant Gastrodia elata species. Taking tuber as medicine, it has the effect of relieving wind and relieving spasm, and mainly treats rheumatism, waist and knee pain, limb spasm, vertigo headache, infantile shock and so on.

Gastrodia elata is a perennial symbiotic herb. Mature plants include underground tubers and aboveground flowering stems. Rootless, stem solitary, erect, 100cm tall, no green leaves, only degraded scalelike leaves, clasping, racemes, tubers fleshy, oblong. Raw Tianma prefers cool and humid climates, with relative humidity between 70% and 90%. Gastrodia elata can not be autotrophic, and must rely on Armillaria and its symbiosis in order to get nutrition and reproduction and growth, so the place where Gastrodia elata grows must be accompanied by a large number of Armillaria. Parasitic Armillaria mellea can grow on about 200 tree species, especially in broad-leaved forests, generally saprophytic life on the roots of cut trees, bamboos or burned trees, and on dead trees in the forest, but they can also be parasitic on living trees, causing extreme rot of trees. Armillaria mellea can only grow vigorously under certain humid conditions, the soil water content is not less than 45%-50%, and the air relative humidity is 75%-85%. Armillaria mellea can be cultivated artificially, the strain can be cultivated first, and the culture of mother strain is potato glucose Agar medium.

Collection and selection of bacteria source: the producing area of Gastrodia elata is the bacteriocin of Armillaria mellea (the outer sheath is brown-red) or the young and fresh fruit bodies of Armillaria mellea are collected in autumn for tissue isolation. After inoculation, the species are cultured in 22-26 ℃ for 15-17 days, and the cultivated species are grown in full bottle.

When the seed material is cultured, the medium formula is: sawdust (oak tree is better), add water or 20% potato water to form a semi-solid medium. When making, use a 500ml triangle bottle, each bottle contains 10 grams of sawdust ash, then add water to wet the sawdust thoroughly, and then continue to add water until the liquid level is 0.5 cm deep. After adding enough water, the branches such as chestnut trees with thick fingers were cut into twigs with a length of 6cm and 7.5cm, and the skin was cut into fish scales with a knife. 3 pieces were put into each bottle and inserted obliquely into the above-mentioned semi-solid medium to make the branches exposed to the substrate. After high pressure sterilization, the branches were inoculated (cultivated species) and cultured at 25 ℃ for 1 ~ 2 months, that is, the seeds were covered with brown ropes on the culture and branches.