Cutting Techniques of Cuttings and Flowers of Seedlings of Three-harringtonine

The plant is located in the Golden Triangle of the Yellow River at the junction of Shanxi, Shaanxi and Henan provinces. It is located at the exit of the National Highway 209 and 310, the exit of Lianhuo Expressway, and the railway and interchange at the Bohai Sea. The traffic conditions are extremely convenient. . C. simonii extracts 16 alkaloids and 2 lactones; evergreen shrubs, passed the State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, College of Life Sciences, Southwest Normal University, Department of Biological Sciences and Technology, Tsinghua University Room, Shanghai Jiaotong University, Plant Biotechnology Center, Qualified; cephalopod seedlings 1 meter high 100,000/15 yuan, cephalozoic seedlings 0.2 meters high 1 million/1 yuan, cephalozoic banyan species length 0.4 meters 90 Million / 0.8 yuan, 3 vines 3 tons of sesame seed / 45 yuan to ensure the sale of leaching buds welcome to visit the order of sassafras species cuttings breeding seedlings seedling height 04 meters 1 million / 3 yuan. Cuttings ensure the survival rate of 85%; seek joint ventures nationwide, long-term commitment to the fixed-point order model to jointly develop seedling breeding projects Qinling reserves of 16 species of alkaloids and 2 kinds of lactones; evergreen shrubs, resin core in the middle of the pith; Twigs are opposite and the base has budding scales. Leaf-shaped or lanceolate, spirally arranged, base twisted into 2 rows, midribs usually bulging on both sides, and 2 wide stomatal bands on the back. Male and female odor, less common plants; male flowers 6-9 clustered into heads, solitary in leaf axils, peduncles, basally with many bracts, l ovate or triangular bracts at base of each male bulb; stamens 4-16, filaments short, each with 2-4 (mostly 3) anthers, septate triangle, pointed or obtuse, pollen grain capsules; female ball flowers with long stems, born at base of branchlets sepals, long stems There are several pairs of cross-contrast bracts in the upper part, each ovule has ovules 2, ovules are born in bottle-like beads scales, and the bead scales develop into fleshy arils. Seeds drupe-like, flattened, mature the next year, all wrapped in the skin of the fake aril, ovoid, oval-ovate or case-ovate, with a pointed tip at the top, basal bracts persistent, outer seed coat hard , bone, inner seed coat thin film, endosperm. Cotyledons 2, unearthed. One species of Qinling in the province. In recent years, alkaloids have been used to treat tumors in the qualified seed branches and leaves identified by the State Key Laboratory of Biochemical Engineering of the Institute of Process Engineering of the Chinese Academy of Sciences. The three-pointed fir wood is excellent. The difference between heartwood and sapwood is obvious. The texture structure is ineffective and meticulous, and the hardness is high. The strong heart is a high-grade material for making furniture and carving art. The extraction of alkaloid taxol from leaves, bark and roots is the nemesis of cancer. At present, the international market is very popular, and vigorous development of the three-harvested firs. Liguo Limin. There are many opportunities for cultivating experimental and scientific research after several years. The seedlings of the Chinese fir seedlings develop slowly (usually 2 years). The harringtonine must have overcome the technical problems such as the dormant seed length of the seedlings of C. cusmifolia, the rooting of the cutting seedlings, and the selection of high-quality saplings of harringtonia.
1. Cutting seedling cultivation; cutting seedlings. Take the middle and upper 1-2 years thick branches or cuttings of cuttings into cuttings. The length is generally 10-15cm. Each trade has a "top tip". The remaining lateral branches and leaves are cut off and cut at the branches. The horseshoe sloping mouth is used as the lower cut of the cuttings, soaked in the rooting powder solution, the depth is 2-3cm, soaking time is 12 hours. The cutting density is 6cm5cm and the depth is 3-5cm. Shave and moisturize first spread 1-2cm of moisturizing sawdust on a cutting seedling bed, and then cover it with a small plastic shed of 50cm in height, and then cover the shed with a straw curtain so that the sunlight can not be directly injected into the seedlings. Management is mainly spray watering every day.
2. Afforestation; a. The shady slopes and half shady slopes between 1700-3500m above sea level, the soils with thicker soil and moister secondary forests, sparse forests and alpine shrubberies, and meadows are suitable for afforestation of harringtonia, and the afforestation sites must be set up as horizontal strips or burrows; At the time of planting holes, 1-3 small evergreen shade trees are reserved, and they can also be planted at the time of planting, preferably on the southeast side. Planting hole spacing 50cm150cm. b. Colonization is often performed in June-July. Choose the seedlings that are more than 2 years old, whose roots have been lignified, whose shoot length is longer than 10cm, and which are free of pests and diseases, and which grow well. Afforestation with ABT3 rooting powder solution before planting can increase the survival rate of afforestation and shorten the period of seedling sowing. c. Afforestation management and protection, due to the slow growth of cedar, so the protection of the seedling period is very important. For reserved and pre-planted shading plants, we must allow it to play a role in shading, but it must not be shaded too much. It must be trimmed in time. The grass and irrigation on the ponds should be promptly eradicated or removed. In the summer, apply some nitrogenous fertilizer and spray 10010.6 gibberellin At to promote cell division.
3. Problems to be noted in afforestation and afforestation; a. The cultivation of harringtonia is better in summer. The relative humidity and temperature are higher in summer, and a considerable number of roots can be formed and lignified in the same year. The ability to resist drought is stronger during the winter and spring. However, attention should be paid to drainage and disinfection of seedbeds, otherwise serious root rot may occur. b. There was a significant difference in the use of rooting powder in the cutting of harringtonia seedlings. The cuttings using the rooting powder started rooting in less than 2 months and had a well-developed root system. It took more than 3 months to start rooting, and the amount was relatively small. less. c. If the cutting seedlings are watered too much, it will lead to bad roots, but less water will cause the air humidity to be lower, which will affect the cutting success rate of harringtonia. The contradiction of this shuttle can be solved by using the following solutions: selecting shades with higher water absorption; using sawdust with higher water absorption to cover the surface; using small plastic sheds; changing to watering; using sorghum to help Drain breathable. d. Chrysanthemum argyori is growing slowly, and the purpose of cultivation is mostly to harvest foliage, so it can be planted like a tea plantation. In 1972, China National Conference on Cancer classified it as an important anti-cancer medicinal plant. The harringtonine and homoharringtonine extracted from harringtonia can be extracted from the crude bark of Qinling, a Chinese specialty plant. Alkaloids and 2 lactones. Alkaloids include scopolamine, harringtonine, homoharringtonine, and iso-cross-fertate. Pharmacological studies have shown that the berberine esters of harringtonine, homoharringtonine, isoharringtonine and deoxyharringtonine have significant anti-leukemia effects on L-1210 and P388 mice. The role. At present, both have been widely used in the clinical treatment of acute anti-cell leukemia.

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Herbs perennial, up to 60cm tall.Rhizome short, stem erect, smooth glabrous.Leaves palmate compound, long stalks, 3 ~ 4 whorled at stem apex;Leaflets 3 ~ 7, elliptic or oblong obovate, margin serrulate.Born on the slopes of the jungle.Now more cultivated in the elevation of 800 ~ 1000m foot slope or on the gentle slope of the mound.Mainly produced in Yunnan, Guangxi and Sichuan.
Herbs perennial erect, 20-60 cm tall.Taproot fleshy, 1 at most, spindle - shaped.Stems dark green, purplish to apex, glabrous, longitudinally coarsely striated.
Fingerlike compound leaves 3-6 whorled stem apex;Stipules many, clustered, linear, less than 2 mm long;Petioles 5-11.5 cm long, striate, smooth glabrous;Petiole central 1.2-3.5 cm long, lateral 0.2-1.2 cm long, glabrous;The biggest in the middle of the leaf blade membranous, elliptic to pour egg shape long elliptic, 7 to 13 cm long, 2-5 cm wide, apex acuminate to long acuminate, base broadly cuneate to rounded, on both sides of the blade, the smallest elliptic to cone long ovate, 3.5 7 cm long, 1.3 3 cm wide, apex acuminate to long acuminate, base oblique, margin finely serrate,Tooth cusp with short cusp, 1 setae between teeth, setae sparsely along veins on both sides, main and lateral veins raised on both sides, reticulate veins not obvious.

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