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Horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of walnut trees

A hard branch grafting, horseshoe-shaped technology, applied in the field of walnut planting, can solve the problems of mixed good and bad, mixed varieties, poor quality and quality, etc., and achieve the effect of heavy root pressure and serious injury

Pending Publication Date: 2021-06-18
略阳县秦岭生态保护中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Walnuts have a long history of cultivation in my country, but most of them are forests bred from seed walnuts. The varieties are mixed, good and bad are mixed, the quality and quality are low, and the economic benefits are not high.

Method used

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  • Horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of walnut trees
  • Horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of walnut trees
  • Horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of walnut trees

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Present embodiment provides a kind of horseshoe-shaped rootstock of anti-walnut tree injury flow and handles hard branch grafting method, comprises the following steps:

[0036] 1. Preparation before grafting

[0037] 1.1 Scion collection

[0038] 1.1.1 Collection time: It can be collected from 20 to 30 days after walnut leaves fall to 20 to 30 days before germination in spring. It is advisable to collect around New Year's Day in areas where the winter is cold or the branches are easy to shoot out in early spring. If there are no conditions such as storage in cold storage, it is advisable to collect in early and mid-February.

[0039] 1.1.2 Scion selection: Hard branch scion refers to the collected tree crowns with a thickness of 1-2 cm or more in the upper part, small pith, well-developed branches, full buds, and healthy annual branches without pests and diseases.

[0040] 1.1.3 Scion storage: After the scion is collected, remove thick branches and pure male flower ...

Embodiment 2

[0064] Compared with embodiment 1, the difference of this embodiment is limited to:

[0065] 3. Grafting method

[0066] Horseshoe-shaped rootstock for grafting: Young trees with a joint diameter of less than 5 cm can be grafted with a single head. Select the straight and smooth part of the grafted branch, cut off the upper end of the rootstock at an angle of 15 degrees to form a horseshoe shape, use a grafting knife to cut the top end of the cross section into a crescent-shaped incision, and cut off the thick old bark of the rootstock under the incision to expose Tender skin (about 2 to 3 mm thick tender skin left). The length of the peeled bark is slightly longer than the length of the long tongue-shaped section of the scion. Use a grafting knife to vertically incise 0.4 cm of the skin at the lower end of the cross-section, and tear off the cut skin 16 cm downwards as a launder. Choose a woody scion, cut it into 20 cm long branches, leave 1 to 2 full buds at the upper end...

Embodiment 3

[0068] Compared with embodiment 1, the difference of this embodiment is limited to:

[0069] 3. Grafting method

[0070] Horseshoe-shaped rootstock for grafting: young trees with a joint diameter of 3 cm can be grafted with a single head. Select the straight and smooth part of the grafted tree branch, cut off the upper end of the rootstock at an angle of 12 degrees to form a horseshoe shape, use a grafting knife to cut a 5 cm crescent-shaped incision at the top end of the cross-section, and cut off the thick old tree of the rootstock under the incision The tender skin is exposed on the skin (about 2-3mm thick tender skin left). The length of the peeled bark is slightly longer than the length of the long tongue-shaped section of the scion. Use a grafting knife to cut vertically about 0.3 cm of the skin at the lower end of the cross-section, and tear off the cut skin about 15 cm downwards as a launder. Choose a woody scion, cut it into 18 cm long branches, leave 1 to 2 full b...

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Abstract

The invention relates to the technical field of walnut planting, in particular to a horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of walnut trees. The horseshoe-shaped rootstock treatment hard branch grafting method comprises five steps of rootstock treatment, scion cutting, scion insertion, binding and drainage. Compared with the prior art, the horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of the walnut trees has the following beneficial effects that (1), according to the horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of the walnut trees, the introduction of the improved walnut variety through grafting and other methods for asexual breeding is an effective way for popularizing the improved walnut variety; and (2), by utilizing the horseshoe-shaped rootstock treatment hard branch grafting method for preventing bleeding of the walnut trees, the walnut trees are large in root pressure and heavy in bleeding, tannin in the bleeding can quickly block nutrient substance exchange between scions and rootstock cambium layers and block the supply of rootstock nutrition to the scions, bleeding is one of key factors influencing the walnut grafting survival rate, and bleeding control is a key technology for walnut grafting survival.

Description

technical field [0001] The invention belongs to the technical field of walnut planting, and in particular relates to a horseshoe-shaped rootstock treatment hard branch grafting method for preventing walnut tree damage. Background technique [0002] Walnuts have a long history of cultivation in my country, but most of them are forests bred from walnuts, with mixed varieties, good and bad, poor quality and low economic benefits. It is imminent to improve the quality, quality and benefit of walnut stands. The introduction of improved walnut varieties by grafting and other methods for asexual reproduction is an effective way to promote improved walnut varieties. [0003] Due to the heavy root pressure of walnut trees and severe wounding, tannins in the wounding stream can quickly block the exchange of nutrients between the scion and the rootstock cambium, and block the supply of rootstock nutrients to the scion. The wounding stream is a key factor affecting the survival rate of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/30
CPCA01G2/30
Inventor 覃永刚李年麒许艳汤虎春张慧娟肖静
Owner 略阳县秦岭生态保护中心
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