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Method for improving top-grafting survival rate of camellia trees

A high-level grafting and survival rate technology, applied in the field of plant cultivation, can solve the problems of lower grafting survival rate and preservation rate, rootstocks are easily burned by sunlight, and reduction of forest canopy density, so as to achieve high scion survival rate and preservation rate, effective It is beneficial to the growth of scion and reduces the effect of nutrient and water loss

Inactive Publication Date: 2018-08-28
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current grafting and cap replacement technology, the management cost after grafting is high, and the canopy density of the forest land decreases after the rootstock is broken, and the rootstock is easily burned by the sun. In severe cases, the bark will crack and die due to severe dehydration of the rootstock. Cause grafting survival rate and preservation rate to decrease, and ultimately affect the effect of grafting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] From May to June 2009, crown grafting was carried out in Tongfu Village, Toupai Town, Jinxiu County, Guangxi. Select 20-year-old Camellia oleifera trees, and select 2 branches of Camellia oleifera trees that are evenly distributed and grow robustly as rootstocks on each Camellia oleifera tree. Saw off with a saw at the smooth place where the selected Camellia oleifera branches are 40cm to 50cm above the ground, and at the same time saw off all the remaining branches from the base of the branches with a saw, without retaining vegetative branches and shade branches.

[0025] Collect 0.2-0.3cm-thick semi-lignified and normal-growing scion in the middle and upper part of the canopy of a fine Camellia oleifera variety as the scion, cut the scion to a length of 2-3cm, and keep one bud and one leaf. If the leaf is too large, you can cut off 1 / 2 3 blades. Grafting is carried out by the conventional method of skin-lifting and grafting, and the scion and the rootstock branch are...

Embodiment 2

[0028] On a sunny day in June 2009, we carried out crown grafting of big Camellia oleifera trees in Bamiao Village, Bamiao Village, Yufeng Town, Tianyang County, Guangxi. Select 25-year-old Camellia oleifera trees, and select 3 branches of Camellia oleifera trees that are evenly distributed and grow robustly as rootstocks on each Camellia oleifera tree. Saw off with a saw at the smooth place where the selected Camellia oleifera branches are 60cm to 70cm above the ground, and at the same time saw off all the remaining branches from the base of the branches with a saw, without retaining vegetative branches and shade branches.

[0029] Collect the 0.2-0.3cm-thick lignified and normal-growing scion from the middle and upper part of the canopy of the excellent Camellia oleifera variety as the scion, and cut the surface of the scion to a length of 2-3cm, and keep one bud and one leaf. If the leaves are too large, cut off 1 / 2 of the leaves. Grafting is carried out by the conventiona...

Embodiment 3

[0032]On a sunny day in July 2016, the crown grafting of Camellia oleifera trees was carried out in Bada Town, Xilin County, Guangxi. Choose 30-year-old Camellia oleifera trees, and select 4 Camellia oleifera branches that are evenly distributed and grow robustly as rootstocks on each Camellia oleifera tree. Saw off with a saw at the smooth place where the selected Camellia oleifera branches are 70cm to 80cm above the ground, and at the same time saw off all the remaining branches from the base of the branches with a saw, without retaining vegetative branches and shade branches.

[0033] Collect 0.2-0.3cm-thick semi-lignified and normal-growing scion in the middle and upper part of the canopy of a fine Camellia oleifera variety as the scion, cut the scion to a length of 2-3cm, and keep one bud and one leaf. If the leaf is too large, you can cut off 1 / 2 3 blades. Grafting is carried out by the conventional method of skin-lifting and grafting, and the scion and the rootstock br...

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Abstract

The invention discloses a method for improving the top-grafting survival rate of camellia trees. The method includes the steps of grafting time selection, rootstock selection, rootstock treatment, scion collection, grafting, first rootstock binding, second rootstock binding and fostering and fertilizing management. On sunny days from May to July every year, robust camellia tree branches on the camellia trees aged 20 to 30 years are selected as rootstocks; on the basis of a conventional bark-pulling cut-grafting method, it is unnecessary to keep vegetative branches and shading branches, film belts are used for binding the rootstocks from bottom to top one ring after another ring without gaps, and then the rootstocks are covered with moisturizing bags and shading objects; when scion buds survive, the moisturizing bags and the shading objects are removed, and then film belts are used for binding the rootstocks; after grafting, management is conducted in combination with a conventional method. By means of the method, rootstock germination can be effectively inhibited, it is prevented that the rootstocks are subjected to bark cracks and death due to sunburn and water loss of the rootstocks, the costs of management and protection after grafting and crown changing of the camellia trees are effectively reduced, and recovery and formation of crowns of the camellia trees after grafting can be quickened.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and relates to a method for improving the survival rate of high-position grafting of large Camellia oleifera trees. Background technique [0002] Camellia ( Camellia oleifera Abel.), also known as tea seed tree and camellia oleifera, is an oil species with high cultivation economic value in the camellia family Theaceae, and is also a woody edible oil plant unique to southern my country. It is also known as oil palm, olive and coconut It is the world's four largest woody oil tree species. Camellia oleifera's main product, tea oil, contains a variety of vitamins and trace elements beneficial to the human body, and its unsaturated fatty acid content reaches more than 90%. It is a natural, safe and healthy high-quality characteristic woody high-nutrition edible oil. Known as "Oriental olive oil". [0003] In recent years, the country and autonomous regions have attached great importance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G2/30A01C21/00
Inventor 陈林强夏莹莹梁斌陈国臣梁国校张乃燕江泽鹏刘凯叶航王东雪曾雯珺
Owner GUANGXI FORESTRY RES INST
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