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Method for cultivating elm hybridized and combined trees

A hybrid combination and cultivation method technology, applied in the field of grafting, can solve the problems of difficulty in pollination, difficulty in hybridization of different elm species, etc., and achieve the effects of increasing pollination opportunities, increasing natural pollination opportunities, and increasing the amount of branches.

Inactive Publication Date: 2021-03-16
河北省林业和草原科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Elms are generally planted with a single variety, and it is rare to plant multiple varieties in a certain area. It is difficult to pollinate between different elm varieties; it brings difficulties to hybridization of different elm varieties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of cultivation method of elm hybrid combination tree, concrete steps are as follows:

[0015] (1) rootstock selects the white elm whose trunk diameter is 8cm-10cm, and grafts 2 scions at a height of 0.8-1m from the ground;

[0016] (2) After the scion survives, carry out 3 strands of 6-fork pruning: after the scion grows to 30cm, pinch the tip at 25cm; select 3 well-growing branches on the branch that grows from the pinch point, and the remaining branches Remove; after the 3 branches grow to 30cm, pinch the tip at 25cm, and branches grow again at the pinch point, and select 2 vigorously growing branches to keep as forks, which add up to 6 forks.

Embodiment 2

[0018] A kind of cultivation method of elm hybrid combination tree, concrete steps are as follows:

[0019] (1) The rootstock is white elm with a trunk diameter of 8cm-10cm, and 4 scions are grafted at a height of 0.8-1m from the ground; the scions are respectively the branches of fine-skinned white elm and dense-branched white elm, and the two are grafted in a cross-shaped pattern ;

[0020] (2) After the scion survives, carry out 3 strands of 6-fork pruning: after the scion grows to 30cm, pinch the tip at 25cm; select 3 well-growing branches on the branch that grows from the pinch point, and the remaining branches Remove; after the 3 branches grow to 30cm, pinch the tip at 25cm, and branches grow again at the pinch point, and select 2 vigorously growing branches to keep as forks, which add up to 6 forks.

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PUM

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Abstract

The invention discloses a method for cultivating elm hybridized and combined trees, and belongs to the technical field of grafting. The invention discloses a method for cultivating elm hybridized andcombined trees. The method comprises the steps of conducting grafting and three-strand six-fork type pruning; and conducting same-plant grafting on elms of different varieties to form same-plant crosspollination trees. By means of three-strand six-fork type pruning, crowns of different varieties are crossed, pollination opportunities are increased, and a method for creating more hybridization opportunities for broad-leaved tree species such as the elms is provided.

Description

technical field [0001] The invention relates to the technical field of grafting, in particular to a method for cultivating elm hybrid composite trees. Background technique [0002] White elm (Ulmuspumila) is a plant of the genus Ulmaceae, deciduous tree, up to 25m, diameter at breast height 1m; crown spherical; branchlets off-white, glabrous; leaves elliptic-ovate or elliptic-lanceolate, apex pointed or acuminate, base One side is wedge-shaped, the other side is nearly round, the leaf margin is irregular double-serrated or single-toothed, glabrous or slightly pilose in the veins, the texture of the old leaves is thicker; the flowers are clustered; the samara is nearly round, yellow-white when ripe, glabrous . White elm has a well-developed root system, strong adaptability, cold and drought tolerance, and moderate saline-alkali tolerance. It can be used as afforestation and greening tree species in coastal saline-alkali land. [0003] Generally, a single species of elm is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/30A01G7/06A01G17/00
CPCA01G2/30A01G7/06A01G17/005
Inventor 黄印冉闫淑芳冯树香董谦王玉忠高运茹白素辉闫玲杨敏生李银华
Owner 河北省林业和草原科学研究院
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