Method for improving grafting survival rate of acacia cincinnata

A technology of survival rate and pod rolling is applied in the field of improving the grafting survival rate of Acacia podosa. The effect of improving graft survival rate

Inactive Publication Date: 2018-11-20
FUJIAN AGRI & FORESTRY UNIV
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Problems solved by technology

[0003] For a long time, the seeds of acacia trees in our country were mainly purchased and imported from Australia, which was expensive, which greatly hindered the process of artificially cultivating fine varieties
However, the current research on its

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  • Method for improving grafting survival rate of acacia cincinnata

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[0016] Example

[0017] A method to increase the survival rate of Acacia crassicarpa grafting, using cut grafting (such as figure 1 ), including the following steps:

[0018] (1) Rootstock selection: choose Acacia crassicarpa seedlings with a ground diameter of 10mm and at least one well-growing lateral living branch as the rootstock;

[0019] (2) Scion collection and treatment: The scion should be selected from the semi-ligninized shoots in the middle of the Acacia vulgaris mother tree and grafted as soon as it is picked; the collected scion should be used 50mg·L before grafting -1 The exogenous hormone IBA is soaked for 1 min;

[0020] (3) Grafting period: mid-March in spring;

[0021] (4) Grafting method: cut the rootstock 4cm above the first living branch that grows well, and keep the living branch; after cutting, cut a 3cm incision from the cambium on one side from top to bottom to make It exposes the xylem, cambium and phloem; cut the scion treated in step (2) into sections with ...

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Abstract

The invention discloses a method for improving the grafting survival rate of acacia cincinnata. A cut grafting method is adopted, stumping is conducted on the part which is 3-5 cm away from the top ona well growing first live branch of a stock, and the live branch is reserved; after stumping is conducted, an incision with the length of 2-4 cm is longitudinally cut from top to bottom from a cambium on one side to expose xylem, cambium and phloem; a cuttage shoot which is processed by IBA is sharpened into segments, and two sharpened faces are made; the stock is cut in the direction close to acotyledon petiole and close to the side, the cut cuttage shoot is instantly inserted, the combining position is tightly pinched, a rootstock and the cambium are opposite, so that the stock naturally fits the cambium of the cuttage shoot, and a plastic film is used for tightly wrapping and tightly fastening. By means of the method, excellent characteristics of the stock and cuttage shoot can be reserved by the acacia cincinnata, the adaptability and antireversion force on the environment of the acacia cincinnata can be enhanced to shorten the seedling breeding time span, the grafting survival rate is greatly improved and reaches up to 85%, and the method is the most effective means of making progress in the generation of improved materials of forest trees.

Description

technical field [0001] The invention relates to the technical field of forest tree breeding and reproduction, in particular to a method for improving the grafting survival rate of Acacia vol. Background technique [0002] Acacia cincinnata (Acacia.cincinnata), a tree species with tall tree shape, strong resistance, and nitrogen-fixing effect of root nodules. Introduced into my country in the early 1990s, it is a fast-growing tree species with a short rotation period. The trunk is straight, the degree of seedling differentiation is low, and the forest is neat. It can be cut after 6-8 years of afforestation under general site conditions. It is an ideal crop rotation and alternative tree species. The minimum average vessel width of wood is about 199.41 μm, the maximum average microfibril angle is 18.8°, and the density is 617kg / m 3 , with good dry shape and beautiful wood grain, it can be used as solid wood furniture and decorative veneers as well as high-quality pulp trees. ...

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Application Information

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IPC IPC(8): A01G2/30
CPCA01G2/30
Inventor 丁国昌杨蕾
Owner FUJIAN AGRI & FORESTRY UNIV
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