Codonopsis pilosula-Gansu Codonopsis pilosula 92-02
Gansu Codonopsis pilosula 92-02 is a new variety of Codonopsis pilosula, which was successfully bred by Dingxi dry farming Agricultural Research and extension Center, Weiyuan County Science and Technology Bureau and Agricultural extension Center by mixed selection method according to the breeding procedure for many years. The variety passed the provincial appraisal and acceptance in 2004, the achievement level reached the domestic advanced level, and won the second prize of scientific and technological progress in Dingxi City in 2006. The characteristics of the varieties are as follows:
1. Feature characteristics
The whole growth period of this variety is 540 days, the plant height is about 150cm, the main stem is green, the flower is yellowish green, the 1000-grain weight of seed is about 0.26g, the root system is yellow and white, the root length is 40cm, the diameter of Reed head is 0.8-1.5cm.
2. Major quantity performance
In the regional test of Codonopsis pilosula strain in Dingxi City, the average yield of fresh Codonopsis pilosula 359.6kg/ mu was 15.5% higher than that of the control variety (local field species). From 2001 to 2004, multi-point experiments and demonstrations were conducted in Minxian, Zhangxian, Weiyuan, Longxi and other places, with an average yield of 370.8kg/ mu, 16.0% higher than the control.
3. Intrinsic quality
Identified and analyzed by Gansu Institute for Drug Control: the characters and microscopic characteristics of the new strain 92-02 of Codonopsis pilosula in Gansu are in line with the regulations. The extract is 75.9%, 20.9% higher than the standard stipulated in the Chinese Pharmacopoeia, and 6.1% of polysaccharides (phenol sulfate method). The quality index is significantly better than that stipulated in the 2000 edition of Chinese Pharmacopoeia.
4. Product grade
Under standardized cultivation conditions, the yield of high-grade and first-grade products of this strain was 18.9% and 26.3%, respectively.
5. Disease resistance
Under the soil condition of three-year rotation, the average incidence of root disease was 3.7%, and the disease index was 1.4%.
6. Suitable area
This strain is suitable for cultivation in semi-arid areas, Eryin areas and alpine, shady and humid ecological areas with an altitude of 1800-2400m and annual precipitation of 1800-600mm.
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Planting techniques of Codonopsis pilosula
1. It is better to choose sandy loam or humus loam and shady slope close to water source, loose and fertile soil with good drainage. The planting land should choose gentle slopes, terraces with high dryness and good drainage, raw wasteland and flat land, but the soil layer should be deep, fertile, well-structured and easy to cultivate. After withering and selecting the soil that is easy to cultivate, the shrubs and weeds on the wasteland should be removed and burnt as fertilizer in the winter of the first year, and then the soil should be ploughed 30 cm, leveled and raked fine, and made into a high border 1.3 meters wide.
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High-yield cultivation techniques of Codonopsis pilosula
The traditional Chinese medicine Codonopsis pilosula is used as a root and is born on the edge of a forest or in bushes. Distributed in western Sichuan, Gansu, Shanxi, Henan, Inner Mongolia, Hebei, Shaanxi, Northeast and other places. Cultivation is available in most provinces and cities throughout the country. Taste sweet, sex is flat. First, the biological characteristics of strong cold resistance, like cool mountain areas, can be planted in mountainous areas with an elevation of 800,000m, and sandy loam soil with deep soil layer, good drainage and high humus content is better, and continuous cropping is avoided. 2. reproduction method Codonopsis pilosula adopts the method of sexual reproduction, which is divided into direct seeding and seedling transplanting.
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