Taxus mairei grafting culture method

Abstract

The invention relates to a taxus mairei grafting culture method. The taxus mairei grafting culture method is characterized by comprising the following steps that (a) a 2-3-year old branch section with the light grey bark layer is cut out from a strong taxus mairei plant with needed characters, the bottom end of the branch section is cut with an art knife to form a long inclined face and a short inclined face which are symmetrical, and the bark layer of 0.4-0.5 cm is cut away from the upper end of the long inclined face to expose a cambium; (b) a common strong taxus mairei nursery stock is selected as a stock, and the smooth part on the shady face serves as a part to be grafted, wherein firstly, the knife edge cuts into the bark layer part in a 30-degree angle, the knife edge cuts downwards parallel to the stock after the white cambium is seen, and then downward cutting is continuously conducted by 2-3 cm with a 30-degree angle existing between the knife edge and the stock; (c) a scion is inserted into the notch of the stock through a left hand, the cambium at the upper end of the long inclined face of the scion is aligned with the cambium of the stock, the scion and the stock are pinched by a right hand, and a plastic thin film is used for sealing binding. The taxus mairei grafting culture method is good in grafting effect, high in survival rate and capable of rapidly culturing a large amount of nursery stocks.

Description

technical field [0001] The invention relates to a method for grafting and cultivating southern yew, belonging to the technical field of tree planting. Background technique [0002] Yew is an evergreen tree, the branchlets turn yellow-green or light reddish-brown in autumn, the leaves are strip-shaped, dioecious, the seeds are flat and round, the seeds are used to extract oil, and can also be used as medicine; it is a shallow-rooted plant, its main root is not obvious, Well-developed lateral roots, 30m high, 1m trunk diameter; leaves spirally alternate, base twisted into two rows, strips slightly curved, 1-2.5cm long, 2-2.5mm wide, leaf margins slightly recurved, leaf tips acuminate, There are 2 wide yellow-green or gray-green stomatal belts on the back of the leaves, densely growing small bumps on the midrib, very narrow green belt on the leaf edge, dioecious, male cones are solitary in leaf axils, and ovules of female cones are solitary in flowers The top of the lateral sh...

AI Technical Summary

Problems solved by technology

[0004] During the growth and reproduction of yew, some of the traits we need cannot be maintained. For example, in the cold winter, the surface of most of the leaves of yew in the south will turn red and purple, but a few of them remain emerald green; During the season, the southern yew will be covered with red beans, but there are a few special trees that will be covered with yellow fruits