Biological characteristics of Codonopsis pilosula
Codonopsis pilosula has strong adaptability, warm and cool climate. The requirements of moisture, temperature and sunlight are different in different growth stages. The suitable temperature for seed germination is 18-20 ℃. Seedlings like shade, adults like light, can tolerate high temperature of 33 ℃, and can survive the winter safely under-30 ℃. Root rot is easy to occur when drainage is unfavorable and high temperature and humidity are high.
Codonopsis pilosula is a deep root plant, soil PH6.5-7.0is suitable, avoid continuous cropping, generally should be replanted at intervals of 3-4 years, legume and Gramineae crops are better in the previous crop.
The germination rate of seeds from 3-year-old plants of Codonopsis pilosula is high, which is generally more than 90%. If stored at room temperature for one year, the germination rate will be reduced, and if the seeds are smoked or exposed to salt during storage, the seeds will lose their germination rate.
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Ecological Environment of Dangshen
The annual seedlings of Dangshen are creeping and rarely bloom. Plants older than two years old are twining and flowering generally. The growth period is more adaptable to the environment. The wild Codonopsis pilosula grows vertically in the semi-shady and semi-sunny or shady slope with an altitude of 1400~2100m and a slope of 15°~20°. Dangshen is a deep-rooted plant, suitable for growth in deep soil layer, loose, good drainage, rich in humus sandy loam, soil pH to neutral or acidic soil is appropriate, generally pH between 5.5~7.5. party
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Morphological characteristics and suitable environment of Codonopsis pilosula
[morphological characteristics] Codonopsis pilosula is a perennial herbaceous vine. The root is cylindrical, with a light gray surface and a chrysanthemum heart. The stem is twining, the cross section has white milk, the stem is long and much branched, the lower part is hispid, and the upper part is smooth. Leaves opposite or alternate, stipitate, leaf blade ovate or broadly ovate, entire. Flowers solitary in leaf axils or tip, Corolla broadly campanulate, yellowish green, with lavender spots, apex 5-lobed, lobes triangular. Capsule conical. Seeds small, brown and glossy. The flowering period is from August to September and the fruiting period is from September to October.
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