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The method of cultivating ginkgo fine-quality tree shape based on layered budding and high branch replacement

A technology of ginkgo and bud grafting, applied in the field of landscaping seedling breeding, can solve the problems of low greening application rate, incomplete tree canopy, and low application value, so as to promote germination and growth, ensure the vitality of grafting, and promote germination and branching Effect

Active Publication Date: 2017-06-06
南京锦江园林景观有限公司
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AI Technical Summary

Problems solved by technology

Due to the position effect of branches and buds, the "Wannianjin" grafted tree has no central trunk, and the canopy is not full. Its application value in landscaping is lower than that of seed trees, and the application rate of greening is low. The price is also lower than that of seed trees of the same specification

Method used

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  • The method of cultivating ginkgo fine-quality tree shape based on layered budding and high branch replacement
  • The method of cultivating ginkgo fine-quality tree shape based on layered budding and high branch replacement
  • The method of cultivating ginkgo fine-quality tree shape based on layered budding and high branch replacement

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Embodiment Construction

[0039] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0040] The method for cultivating ginkgo fine-quality tree shape based on layered bud grafting and high branch replacement, comprises the following steps:

[0041] (1) Rootstock cultivation

[0042] Sowing and seedling cultivation was carried out three years in advance to cultivate seedling rootstocks. For the seedlings, remove the basal sprouting branches and main trunk sprouting side branches for 3 consecutive years, strengthen water and fertilizer management, smear the terminal buds with a growth promoter before germination in spring, and cultivate single-dry rootstock seedlings without side branches. The average seedling height can reach 206.8cm, the ground diameter 2.56cm, as shown in Table 1, is the growth comparison between single ...

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Abstract

The invention discloses a layering budding and high-branch head changing based gingko fine tree form cultivation method. According to the method, the ornamental new variety of yellow-leaf gingkoes 'wan nian jin' are budded to ordinary gingko stocks with only trunks and no side branches in a layering mode, the top end high scion changing head is 'wan nian jin' scions, and growth promoters are painted on grafted buds to be cultivated into ornamental gingko fine tree forms with central trunks, layered side branches, full crowns and whole-tree gold leaves. The method comprises the steps of (1) stock cultivation; (2) layering budding on stock trunks; (3) top grafting head changing of scions with terminal buds; (4) budded bud locating stimulating; (5) tree form cultivation; (6) management after grafting. The grafting survival rate reaches 95%, and the fine tree form cultivation success rate reaches about 90%, ordinary gingko and 'wan nian jin' use and ornamental values are greatly improved, the green requirement is met through industrial production, and the market prospect is broad.

Description

technical field [0001] The invention relates to a method for cultivating the tree shape of greening seedlings, in particular to a method for cultivating the fine tree shape of ginkgo biloba based on layered bud grafting and high-branch replacement, and belongs to the field of landscaping seedling breeding. Background technique [0002] The ginkgo tree is tall and long-lived; the trunk is smooth and clean, and it has strong healing ability; the crown is thick and shaded, and the cooling effect is good; 3 , SO 2 , O 3 etc.), anti-radiation, is a famous pollution-free greening tree species. The real ginkgo tree is tall and strong, with a central trunk. The tree is spire-shaped or conical. It grows vigorously in the early stage. Every year, a layer of large branches occurs from the trunk, with a distance of 30-50 cm between each layer and 2-4 large branches in each layer. Grafted ginkgo trees (except layered grafted trees) mostly have no central trunk. Generally, 3 to 4 main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/06A01G17/00
CPCA01G2/30A01G17/005
Inventor 郁万文祝遵凌张往祥王欢利
Owner 南京锦江园林景观有限公司
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