Sexual reproduction and seed production techniques of wild Gastrodia elata

Guizhou is the third largest province in the production of traditional Chinese medicine in China. It has been approved by the Ministry of Science and Technology as a national modern science and technology industry base province of traditional Chinese medicine. Traditional Chinese medicine is an important pillar industry in our province. At the same time, Yinjiang has become one of the first batch of traditional Chinese medicine base counties in our province. In order to make full and reasonable use of the advantages of traditional Chinese medicine resources and transform the abundant wild Gastrodia elata into economic advantages as soon as possible, the principle of "sexual reproduction and sowing technology of Gastrodia elata seeds" successfully researched by Professor Xu Jintang of Chinese Academy of Sciences was introduced. Indoor seed production and cultivation were carried out in Zeng Jiyong's home of Luochang Township, and then planted outdoors after pollination. The summary is as follows:

I. Materials and Methods

1. Material selection. Fanjing wild gastrodia elata "arrow hemp" seed, brick, wood (paper) box, river sand, germination bacteria, disinfectant solution, tweezers, bacteria stick, bacteria branch plastic bag.

2. Seed production methods. 645 high quality wild arrowroot were selected in mid March 2002.(single fresh weight 200- 450g) is sown indoors at a plant spacing of 25 * 25cm2 in a box of disinfected river sand mud,(Box specification is 4.0 meters long, 1.0 meters wide, 0.2 meters thick with bricks) 30 days after the eye rest, 20 days unearthed, stem moss grows, buds bloom, at 9:00 a.m. -5:00 p.m., according to the operating procedures for cross-pollination, seeds mature, should be immediately sown with germinating bacteria (because gastrodia elata seeds do not have stored nutrients endosperm), according to 0.5 kg germinating bacteria sown.

II. Results and analysis

1. Seed production effect. 645 seeds were sown and 613 survived plants were harvested. The success rate was 95%. 31,900 capsules were harvested. The total weight was 4060 g. The weight of capsule per plant was 6.6 g. The average number of capsules per plant was 52.

2. Effect of outdoor cultivation. On November 23, the seeds of Gastrodia elata were randomly sampled from 3 litters for observation. The results showed that the rice hemp grew well and the fungi grew vigorously.

III. Summary and discussion

1. The success of sexual seed production of wild Gastrodia elata and the establishment of seed hemp base solve the problems of serious degeneration of varieties, low content of gastrodin, poor quality and gradual decline of yield in asexual reproduction, and greatly improve the market competitiveness of Gastrodia elata.

2. The wild gastrodia elata is adopted for sexual reproduction and cultivated into gastrodia elata. Its quality is good, which is conducive to approaching the industrialization standard of traditional Chinese medicine science and technology, speeding up the industrialization speed, and reflecting the products with local characteristics, realizing the leap of characteristic economy.

3. The establishment of Tianma seed base can greatly meet the requirements for the development of commercial hemp, and at the same time drive the development of surrounding towns.

4. Tianma production has the characteristics of no cultivated land, short production cycle, quick effect, simple production, low investment and high economic benefit. It is an effective way to get rid of poverty and become rich in rural areas.