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A method of obtaining yellowed tender leaves from rubber tree big tree

A technology for rubber trees and young leaves, applied in the field of agriculture and forestry, can solve the problems such as a method for obtaining yellow young leaves of excellent single plant of rubber trees, low survival rate of rubber branch cuttings, inability to obtain a large number of branches, etc. The operation steps are simple and easy to operate and ensure the effect of smooth ventilation

Active Publication Date: 2020-03-06
YUNNAN INST OF TROPICAL CROPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art discloses a method of using branches to prepare etiolated seedlings. If the disclosed technology is used to collect excellent single branch cuttings of rubber trees for shading and yellowing treatment, one needs a complete set of cutting sites and facilities such as seedbeds and sheds; The survival rate of rubber tree branch cuttings is low, and a large number of branches are needed. For some scarce rubber tree germplasm, a large number of branches cannot be obtained; third, due to the loss of latex in rubber tree cutting branches, the nutrient reserves are limited, and the yellowed leaves have not yet reached the experimental sampling requirements. That is, aging or death, unable to obtain enough yellow leaves of excellent individual rubber trees that can meet the requirements of resequencing
[0005] The yellowed young leaves of excellent individual rubber trees that can meet the resequencing requirements cannot be obtained by other methods that have been published or reported so far, and there is no method for obtaining yellowed young leaves of excellent individual rubber trees, especially those that can meet the requirements of resequencing. Method for obtaining yellowed young leaves on a single large rubber tree that requires resequencing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this example, a sufficient number of yellowed young leaves that can meet the requirements of resequencing are obtained from large trees of rubber tree variety GT1 in March to April every year.

[0025] Include the following steps:

[0026] Step (1), truncation: truncate the twigs with a diameter of 2.5-3.5 cm from the main branch of the big tree of the rubber tree GT1 variety with an angle of less than 30° from the 70 cm from the base of the twig. Cut off 3 branches and keep the cuts flat;

[0027] Step (2), sealing with paraffin: After 3 minutes of cutting, wipe off the latex flowing out of the section with toilet paper, and evenly smear the section with melted paraffin, and the thickness of the paraffin layer is 2 mm;

[0028] Step (3), one-time shading treatment: when the shoots are pulled out near the top of the truncation branchlets and the shoots are 2-3 cm in length, take a black plastic bag with a thickness of 0.20 mm, a diameter of 20 cm, a width of 20 cm, ...

Embodiment 2

[0032] In this example, a sufficient number of yellowed young leaves that can meet the requirements of resequencing are obtained from large trees of the rubber tree variety GT1 from September to October every year.

[0033] Include the following steps:

[0034] Step (1), truncation: cut off the twigs that germinated on the main branch of the rubber tree GT1 variety and the angle with the main branch is less than 30° from the 80 cm from the twig base, and cut off 4 branches for each big tree, keeping Flat cut;

[0035] Step (2), sealing with paraffin: 5 minutes after cutting the branches, wipe off the latex flowing out of the section with toilet paper, and evenly smear the section with melted paraffin, and the thickness of the paraffin layer is 3 mm;

[0036] Step (3), one-time shading treatment: when the shoots are pulled out near the top of the cut off branches and the shoots are 2-3 cm long, take a black plastic bag with a thickness of 0.20 mm, a diameter of 25 cm, and a he...

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PUM

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Abstract

The invention relates to a method for acquiring etiolated tender leaves from a big rubber tree. The method comprises the steps of cutting branches, carrying out sealing with paraffin, carrying out primary shading treatment, carrying out secondary shading treatment and carrying out sampling. Through the adoption the method, etiolated tender leaves which has adequate quantity and can meet the requirement of resequencing can be acquired from a big rubber tree, so that the method solves the problem that the etiolated tender leaves of an excellent single big rubber tree cannot be acquired and solves the problems that the site facilities is complex, a large number of branches cannot be gathered, the branch cutting workload is large, and the etiolated leaves die before reaching experimental requirements in other methods for acquiring etiolated tender leaves. In addition, the method has the advantages of simple facility requirement, simple and easy operation steps and low operation cost.

Description

technical field [0001] The invention relates to a method for obtaining yellowed young leaves of rubber trees, in particular to a method for obtaining yellowed young leaves from large rubber trees, and belongs to the field of agriculture and forestry. Background technique [0002] rubber tree( Hevea brasiliensis Muell. Arg.) is currently the only large-scale industrialized source of natural rubber. The natural rubber products made of its latex have good elasticity, wear resistance, and the production process is environmentally friendly. At present, it cannot be replaced by synthetic rubber. Because natural rubber has special needs in the fields of industry and national defense, it is an important strategic material and is highly valued by countries all over the world. Since natural rubber can only be planted in tropical regions, the land suitable for planting is limited. To expand production, the only way to increase production per unit area is to select high-yield varietie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/06
CPCA01G7/06
Inventor 柳觐牛迎凤毛常丽吴裕刘紫艳郑诚
Owner YUNNAN INST OF TROPICAL CROPS
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