Rapid propagation of Taxus mairei
Because it contains extractable anti-cancer drugs, Taxus mairei has become an important medicinal material in the country. The demand for seedlings is increasing. It is difficult to meet the needs of production by traditional cutting propagation alone. Generally, only one batch can be cultivated in a year, while at least 5-6 batches can be cultivated by using non-test-tube cloning technology, and the survival rate and the quality of seedlings are greatly improved. What is more important is that the fast-growing seedlings can be transplanted, planted and developed throughout the year.
Generally, 3-5 cm long leafy branches are taken as in vitro materials, and when the materials are scarce, they can be even smaller, even 1~2cm. The incisions are treated with indole butyric acid of 100ppm for 2 hours and propagated rapidly in a rapid propagation bed controlled by computer intelligence. Callus is formed in 7-10 days, rooting begins in 25 days, seedlings can be refined and transplanted in 35-40 days, and the survival rate is more than 90%. In addition, in the production, it is found that the electric field treatment has a very obvious effect on improving the root-shoot ratio, speeding up the rooting speed and cultivating strong seedlings, and the application of non-test-tube cloning technology in Mandia red bean pole is the most ideal technology to realize the industrialization development of Taxus mairei, which can not be compared with any other method.
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Excellent hybrid varieties of Taxus mairei
1. Twenty thousand 3-year-old seedlings of Taxus mairei were introduced from Canada, which were mainly used in large-scale production of paclitaxel. The growth of Taxus in China is slow, the content of taxol is relatively low, and it is listed as a national first-class protected plant as a rare tree species. The taxol content in the branches and leaves of Taxus mairei is about 0.02%, and the content in the bark is 0.03%-0.04%, which is 2-3 times of the 60-year-old bark of Taxus mairei, and the growth rate is 3 times that of Taxus mairei. With unknown trunk
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Taxus mairei
Taxus, also known as yew, Latin name: TaxusMedia, is a yew evergreen coniferous plant, is listed as a rare and endangered species in the world, is a national first-class protected plant, known as "plant gold". The paclitaxel extracted from it has high anticancer activity and can treat a variety of cancers. The American Cancer Institute believes that paclitaxel is the most effective anticancer drug for human beings in the future. Taxus mairei is a hybrid variety with fast growth rate, high taxol content and strong adaptability to the environment.
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