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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 Three)
(1) Bolting and flowering. Angelica sinensis is a monocarpic plant. Under normal cultivation conditions, it enters the bolting and flowering stage in the third year. About half a month after the plant turns green again, the growing point begins to shift from the vegetative growth state to the reproductive growth state, forming a reproductive growing point, and some protrusions gradually appear at its apex, namely the inflorescence primordia. As the inflorescence primordia elongate and grow, the tip of each primordium begins to widen and produces several small protrusions, namely the umbellule primordia. After the umbellule primordia elongate, they form the rudiment of a compound umbel. At the same time, the basal stem swells and lengthens, forming internodes and constituting
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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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Detailed Explanation of the Morphological Characteristics and Suitable Growing Environment of Angelica sinensis
[Morphological Characteristics] Perennial herb. Plant height 1-1.5 m. Fleshy taproot system, main root distinct, cylindrical, outer skin yellowish-white, cross-section white, with a chrysanthemum pattern. Stem erect, purple at the base, with obvious longitudinal and transverse striations, divided into vegetative stems and flowering stems. Leaves are divided into basal leaves and stem leaves; basal leaves alternate, with the base enlarged into a sheath clasping the stem, purple-brown. The basal leaves and lower stem leaves are 2-3 times odd-pinnately compound, with toothed notches and coarse serrations along the edges. Compound umbel, terminal, each small umbel has 12-36 florets, white, schizocarp
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Biological and Ecological Characteristics of the Chinese Parasol Tree and Its Seedling Propagation and Afforestation Techniques
Characteristics and Traits The Chinese parasol tree, also known as qingtong or Chinese wutong (Firmiana simplex (Linn.) W. F. Wight), is a plant in the genus Firmiana of the family Sterculiaceae. It is a deciduous tree, 15-20 m tall, with a diameter at breast height of 70 cm. The trunk is straight, and the bark is green when young and grayish-green and smooth when old. The branchlets are green. The leaves are nearly round, with a leaf blade length of 30 cm and a leaf width of 11-20 cm; the leaves are simple and alternate, with 3-5 palmate deep lobes, and the petiole is as long as the leaf, with a heart-shaped base and the lobe tips
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Detailed Explanation of the Biological Characteristics of Xinchuan Nakasu Peach
I. Morphological Characteristics The tree is vigorous and relatively spreading. After open-center training and pruning, a 3-year-old tree is 260 cm tall, with a trunk circumference of 25 cm and a canopy diameter of 3 x 2.6 m. New shoots are green, 1-year-old branches are reddish-brown, and the trunk and perennial branches are grayish-brown. Leaves are dark green with a smooth surface. Leaf glands are kidney-shaped, small and inconspicuous. II. Biological Characteristics (1) Phenological Period In the Yangtze River basin, the flower bud swelling stage is in early to mid-March, the full bloom stage is from late March to early April, the flowering period lasts 57 days, and the fruit ripens in mid-to-late July. The growth
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What is the carbon dioxide toxicity physiological disorder in garlic scapes?
When garlic scapes are packaged in plastic film bags, the carbon dioxide level becomes too high in the later stage, often causing toxicity. It shows as yellow spots on the scape stalk, which gradually sink in, join together, and the tissue becomes necrotic, with water-soaked rot, ultimately causing the garlic scapes to break apart. Sometimes the scape bulbAlso becomes necrotic, giving off an alcoholic smell accompanied by a foul odor. In severe cases, the entire bag of garlic scapes rots, and this has become an important disease in garlic scape storage. In controlled atmosphere storage of garlic scapes, carbon dioxide generally should not exceed 5%, and ventilation should be carried out regularly; in the later stage, carbon dioxide exceeding 13% will cause toxicity.
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A new late japonica rice variety Xiushui 110 achieves source-sink optimization through morphological type innovation
Xiushui 110 was bred by the Yao Haigen project team of the Jiaxing Academy of Agricultural Sciences in Zhejiang Province using the hybridization method, with the combination Jia 59 Tianza/Bing 95-13. In 2001 it passed variety approval by the Shanghai Municipal Variety Approval Committee, and in 2002 it passed variety approval by the Zhejiang Provincial Variety Approval Committee. In 2004 it received a post-variety subsidy from the Ministry of Science and Technology and the Ministry of Agriculture for the selection and breeding of new high-quality specialized crop varieties and research on breeding technology. In 2004 it won the first prize of the Zhejiang Provincial Science and Technology Award. 1 Morphological type innovation, achieving source-sink optimization
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A Complete Analysis of the Chemical Components, Effects and Pharmacological Actions of Reishi Mushroom
Reishi mushroom [Ganoderma lucidum (Fr.) Karst] is a fungus of the genus Ganoderma in the class Basidiomycetes. Since ancient times it has been known as the "immortal herb" and "auspicious herb". It is a precious traditional Chinese medicine for strengthening the vital essence and consolidating the constitution, and for nourishing and invigorating the body. It has a long history of medicinal use in our country and extremely high medicinal value, and is regarded as a precious Chinese medicinal material and a treasure in the treasury of traditional Chinese medicine. In the Eastern Han dynasty, the (Shennong Bencao Jing) listed reishi mushroom as a top-grade substance, holding that "taken over a long time, it lightens the body, prevents aging, and prolongs life like an immortal." Modern medicine has proven that reishi mushroom contains a variety of physiological
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Identification and Control Methods of Physiological Diseases of Reishi Mushroom
Due to the action of abiotic factors, the physiological metabolism of reishi mushroom is often disrupted, leading to disease. Symptoms After physiological diseases occur, deformed mushrooms grow, and the mycelium stops growing or grows poorly and shrinks, and excessive vegetative growth can also occur. Causes During cultivation, improper management leads to poor nutrition of the mushroom body; the temperature in the cultivation room is too high or too low, and ventilation is poor; the water content of the substrate is too high or too low, or the pH is unsuitable; lighting is inconsistent; the bed contains excessively concentrated harmful gases; pesticides and growth regulators are used improperly.
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