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Detailed Explanation of Rapid Cutting Propagation Methods and Techniques for Yew

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Yew is a national first-class protected plant, an evergreen tree, mostly distributed in the Northern Hemisphere. From its bark, stems, leaves and roots, a substance with special efficacy in treating cancer can be extracted - taxol. We successfully introduced yew in the spring of 1996. Its cutting propagation techniques are briefly described as follows: 1. Cutting period. In our area, yew can be propagated by cuttings 3 times a year, in March, July and November. 2. Building a cutting bed. If the number of yew cuttings is small, pots can be used; if the number is large, a cutting bed should be built. Cutting

Yew is a national first-class protected plant, an evergreen tree, mostly distributed in the Northern Hemisphere. From its bark, stems, leaves and roots, a substance with special efficacy in treating cancer can be extracted - taxol. We successfully introduced yew in the spring of 1996. Its cutting propagation techniques are briefly described as follows:

1. Cutting period. In our area, yew can be propagated by cuttings 3 times a year, in March, July and November.

2. Building a cutting bed. If the number of yew cuttings is small, pots can be used; if the number is large, a cutting bed should be built. The cutting bed is generally 2.5 m wide, with a 30 cm wide walkway left in the middle, surrounded by bricks about 20 cm wide, with 10 cm left at each edge, and a layer of coarse sand about 20 cm thick, with a small amount of disinfected nutrient soil added. The cutting bed is supported with arched frames, and plastic film is covered over the frames to preserve heat and moisture.

3. Preparation of cuttings. Generally, one-year-old or current-year yew branches about 10 cm long are selected as cuttings. Use pruning shears or a sharp knife to remove the leaves from the bottom 1/3 of the cuttings, tie them into bundles of 50-100 each, soak them in an ABT rooting powder solution at a concentration of 100x10-6 for about 6 hours, take them out, rinse with clean water, and then insert them.

4. Cutting seedling raising and transplanting. The row spacing for cuttings is 3-5 cm, and the plant spacing is 1 cm. For cutting seedling raising in March, after insertion spray 1 time with thorough water, cover with plastic film to preserve heat and moisture, and cover with a shade net to shade and cool. When the temperature of the cutting bed exceeds 25°C, ventilate in time to cool it down. On sunny days at noon, spray water on the cutting bed. For cutting seedling raising in July, after insertion spray 1 time with thorough water, plastic film may be omitted, and a shade net can be directly covered. On sunny days, spray water several times a day; half a month after insertion, spraying water once at noon on sunny days is sufficient. Generally, around October 1, check the rooting status of the cuttings. If the cuttings have rooted, they can be transplanted. After transplanting, spray 1 time with thorough water and cover with a shade net. After 1 month, they can overwinter safely in the open field. For cutting seedling raising in November, after insertion spray 1 time with thorough water, cover with plastic film to preserve heat, add a shade net in March of the following year, and thereafter manage as for cutting seedling raising in March. Generally, the cuttings begin to root in May and can be transplanted for planting in July.

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