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What are the biological characteristics of Angelica sinensis? (Part Two)
(1) Root growth. From sowing to physiological maturity, Angelica sinensis takes three years, overwintering twice, with a total growth period of more than 500 days. After the seed germinates, the radicle elongates rapidly and grows downward in a curved manner, entering the soil. First, one main radicle emerges. When the main radicle extends to 3-4 cm, first-order lateral roots begin to form, and then second-order lateral roots appear on the first-order lateral roots. The main root continues to thicken and elongate and gradually becomes fleshy, forming a typical fleshy taproot system 20-30 cm long and 0.3-0.5 cm in diameter. In April of the following year
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Detailed Explanation of the Biological Characteristics of Angelica sinensis (Part One)
Angelica sinensis seeds lose their germination rate after being stored at room temperature for 1 year, but can be stored for more than 3 years under low-temperature dry conditions. Mature seeds can germinate and grow under suitable conditions of moisture, temperature, oxygen, etc. Seed germination goes through three processes: (1) The water absorption and swelling process. The components that make up Angelica sinensis seeds, such as starch, fat, protein, and cellulose, are all hydrophilic colloids, which exist in a gel state under dry conditions. When the seeds absorb water, water penetrates into the colloidal network structure inside the seeds, causing the gel state to become a sol state, and the volume increases accordingly. This process is a physicochemical phenomenon called the seed water absorption and swelling process.
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What is the difference between Panax notoginseng and Gynura segetum? This article teaches you to tell them apart
Also known as red-backed sanqi, soil sanqi, and blood-breaking elixir. The source is the root of the Asteraceae plant Gynura segetum (Lour.) Merr. Plant morphology: perennial herb, 1-1.5 m tall. Stem erect, somewhat succulent, with fine longitudinal ridges. Basal leaves clustered, spoon-shaped, entire or serrate or pinnately divided, purple-green beneath; cauline leaves alternate, oblong, 10-25 cm long, 5-10 cm wide, pinnately divided, lobes ovate to lanceolate, margin shallowly
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How to identify Schisandra chinensis? Learn these few tricks to tell it apart easily
Schisandra chinensis is also known as northern schisandra. It is a perennial deciduous woody vine of the genus Schisandra in the family Magnoliaceae, and its fruit is used as medicine. Schisandra chinensis mainly contains volatile oil, whose main components include citric acid, a-ylangene, sugars, benzoic acid, citral, and others. The seeds contain schisandrin and others. The fruit is sour in taste and warm in nature. It has functions such as astringing, relieving cough, nourishing the kidney, securing essence, and promoting fluid production. It mainly treats cough and asthma, lung deficiency, spontaneous sweating, insomnia, chronic diarrhea, fluid depletion, and other conditions. Schisandra chinensis is mainly produced in the three provinces of Heilongjiang, Jilin, and Liaoning. In addition, Hebei, Inner Mongolia, Shandong,
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Detailed Guide to Low-Altitude Substitute-Material Cultivation of Gastrodia (Part Two)
After 18°C-22°C cultivation for 2-3 months, the rhizomorphs of Armillaria mellea will have spread throughout the entire corncob material, and it can then be used for Gastrodia cultivation. If there is not enough Armillaria-infected material, Armillaria can be expanded and cultivated further. This method involves adding uncolonized corncobs to corncobs that have already been colonized by Armillaria, at a ratio of 50% each, with the same operation method as above, and finally covering with soil to let the fungus grow. This method is simple and easy to carry out and does not require mother spawn. As long as it is not affected by high temperatures in the environment or by pests and diseases that cause Armillaria to degenerate or mutate, it can be used in long-term cycles. Five
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Detailed Explanation of the Low-Altitude Substitute-Material Cultivation Method for Gastrodia elata (Part One)
Gastrodia elata is a rare and precious traditional Chinese medicine. In the past it was gathered from the wild, growing in mountain forests above 500 m in altitude, and was very scarce and difficult to dig up; today it faces extinction. The development of artificial cultivation of Gastrodia elata has saved this precious species, but technically it still cannot break away from cultivation in high-altitude areas, and the raw material cannot be separated from log segments (oak). This makes Gastrodia elata cultivation greatly limited by region. Second, it is limited by the felling of forest resources. These two major drawbacks have long plagued the development of Gastrodia elata, and it has never been possible to achieve modern
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Detailed Guide to Harvesting and Processing Licorice Root (Part Two)
For seed propagation, harvest after 3 to 4 years; for rhizome and division propagation, harvest after 2 to 3 years. Digging can be done from late autumn to early winter and before spring sprouting. Those dug in autumn are the best, with a high glycyrrhizic acid content and a firm texture. After the licorice is dug out, clean off the soil, remove the stem base, branches and fibrous roots, cut into sections of appropriate length, sun-dry until half dry, tie into small bundles, then sun-dry until completely dry.
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Pinellia ternata cultivation techniques (part two): detailed planting methods
(1) Propagation methods Pinellia ternata is mainly propagated by tubers and bulbils, and can also be propagated by seeds. ① Tuber propagation After Pinellia ternata has been cultivated for 2 years, the underground tubers can be dug up after the stems fall over in June, August and October each year. Select small tubers about 0.5 cm in transverse diameter that are robust and free from pests and diseases as seed. Mix the seed tubers with semi-dry, semi-moist fine sandy soil, store them in a ventilated and cool place, and take them out for planting in the winter of the same year or the spring of the next year. Planting in the spring of the next year is preferable. With a row spacing of 15 cm, open furrows 10 cm wide and about 5 cm deep, and arrange two staggered rows in each
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What is the difference between Solomon's seal (Yuzhu) and Siberian Solomon's seal (Huangjing)? A quick guide to tell the two apart
Yuzhu is the dried rhizome of Polygonatum odoratum, a perennial herb of the genus Polygonatum in the Liliaceae family. It was first recorded in the Shennong Bencao Jing, where it was listed as a top-grade drug under the original name Nülou. The Mingyi Bielu calls it Weirui, and in Hunan it is also called Weishen. Huangjing was first recorded in the Mingyi Bielu and listed as a top-grade drug. There are many botanical sources; broadly speaking, the commercial drug can be divided into two types: chicken-head Huangjing and ginger-shaped Huangjing. Chicken-head Huangjing is the dried rhizome of Polygonatum sibiricum, a few Polygonatum macropodum, and Polygonatum stenophyllum, all perennial herbs of the genus Polygonatum in the Liliaceae family; ginger-shaped Huangjing is the dried rhizome of Polygonatum kingianum, Polygonatum cyrtonema, and Polygonatum cirrhifolium, all perennial herbs of the genus Polygonatum in the Liliaceae family.
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Detailed Guide to Herbicide Application Techniques in Licorice Fields (Part Two)
Weeds can severely affect the yield and quality of licorice, competing with licorice for sunlight, water and nutrients. Some weeds are also intermediate hosts for licorice crop pests and diseases, helping pests and diseases spread and transmit. Especially for artificially cultivated licorice at the seedling stage, if weeds are not removed in time, a large number of seedlings will die, or even the entire crop will be destroyed. Now, in addition to manual weeding, chemical herbicides are often used for weed control. In our county, the following 3 chemical herbicides are currently promoted for artificially cultivated licorice: acetochlor, pendimethalin, and doucaote. Practice has proved that using chemical herbicides for weed control is the guarantee
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