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A method for improving the girdling germination rate of Eucalyptus macrophylla

A technology of girdling and giant eucalyptus, which is applied in the field of forest cultivation, can solve the problems of fewer branches and less girdling of giant eucalyptus, and achieve the effects of increasing the number of branches, promoting penetration, and inhibiting the growth of microorganisms

Active Publication Date: 2019-12-06
RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few studies on the girdling of Eucalyptus grandis, and few shoots germinate using the conventional girdling method.

Method used

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  • A method for improving the girdling germination rate of Eucalyptus macrophylla
  • A method for improving the girdling germination rate of Eucalyptus macrophylla
  • A method for improving the girdling germination rate of Eucalyptus macrophylla

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (investigate the impact of girdling time on germination rate)

[0028] A method for improving the girdling germination rate of Eucalyptus giantis, comprising the steps of:

[0029] (1) select the giant Eucalyptus that will be girdled: choose the giant Eucalyptus of 5 years old;

[0030] (2) Determine the girdling time: the girdling time is 1, 3, 5, 7, 9, and 11 months (10 trees per month);

[0031] (3) Determine the girdling height: the height of the lower edge of the girdling place from the ground is 90cm;

[0032] (4) Determine the girdling width: the girdling width is 20cm;

[0033] (5) Management and protection after girdling: no management and protection.

[0034] The number of sprouted shoots after 10 weeks of girdling is shown in Table 1.

[0035] Table 1

[0036] Ringing time (month) The average number of sprouts per Eucalyptus grandis 1 1.8 3 3.3 5 4.8 7 6 9 5.6 11 2.9

Embodiment 2

[0037] Embodiment 2 (investigate the impact of girdling height on germination rate)

[0038] A method for improving the girdling germination rate of Eucalyptus giantis, comprising the steps of:

[0039] (1) select the giant Eucalyptus that will be girdled: choose the giant Eucalyptus of 5 years old;

[0040] (2) Determine the girdling time: the girdling time is July;

[0041] (3) Determine the girdling height: the height of the lower edge of the girdling place from the ground is 10, 30, 50, 70, 90, 110cm (10 trees are girdled for each girdling height);

[0042] (4) Determine the girdling width: the girdling width is 20cm;

[0043] (5) Management and protection after girdling: no management and protection.

[0044] The number of sprouted shoots after 10 weeks of girdling is shown in Table 2.

[0045] Table 2

[0046]

[0047]

Embodiment 3

[0048] Embodiment 3 (investigate the impact of girdling width on germination rate)

[0049] A method for improving the girdling germination rate of Eucalyptus giantis, comprising the steps of:

[0050] (1) select the giant Eucalyptus that will be girdled: choose the giant Eucalyptus of 5 years old;

[0051] (2) Determine the girdling time: the girdling time is July;

[0052] (3) Determine the girdling height: the height of the lower edge of the girdling place from the ground is 90cm;

[0053] (4) Determine the girdling width: the girdling width is 5, 10, 15, 20, 25, 30, 35cm (10 trees for each girdling width);

[0054] (5) Management and protection after girdling: no management and protection.

[0055] The number of sprouted shoots after 10 weeks of girdling is shown in Table 3.

[0056] table 3

[0057] Girdling Width(cm) The average number of sprouts per Eucalyptus grandis 5 0 10 0 15 2.2 20 6 25 6.2 30 5.8 35 5.2

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Abstract

The invention discloses a method for improving the girdling germination rate of alpine ash. The method comprises the following steps: (1) selecting the alpine ash to be girdled; (2) determining girdling time; (3) determining girdling height; (4) determining girdling width; (5) management and protection after girdling. According to the method disclosed by the invention, the quantity of germinated branches after girdling of a single piece of alpine ash can be increased, and the method lays a foundation for large-scale cutting propagation.

Description

technical field [0001] The invention relates to the technical field of forest cultivation. More specifically, it relates to a method for improving the girdling germination rate of Eucalyptus grandis. Background technique [0002] Eucalyptus grandis is native to Australia and is one of the world's three fastest-growing tree species. It can be felled in 5-6 years and is used as an important raw material for papermaking and artificial boards, so it is also called the rich tree. Its crown is stretched and sparse, the trunk is straight, and the branches are high. Therefore, it is not very operable to take its branches at any time for cutting propagation. Usually, the method of girdling is used to make new branches germinate at the girdling place (the giant eucalyptus after girdling gradually dies, and it is left to be felled), and the germinated new branches are taken. Propagation by cuttings. The more new shoots each girdled giant eucalyptus germinates, the fewer giant eucaly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01G13/00A01N25/30A01N43/22A01N37/12A01P21/00
CPCA01G13/00A01G17/005A01G2013/004A01N25/30A01N37/12A01N43/22A01N2300/00
Inventor 吴世军徐建民李光友宋佩宁郭文仲
Owner RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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