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A kind of grafting and breeding method of Jinxiu Michelle

A technology of splendor and grafting time, which is applied in the field of splendor Michelle grafting and propagation, can solve the problems of long rooting time for cutting propagation, low survival rate of grafting, and difficult survival of transplantation, etc., and achieves the advantages of improved grafting and propagation efficiency, simple and fast operation, and fast growth rate Effect

Active Publication Date: 2017-12-19
JIANGSU ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Splendid Michelia can be propagated by grafting or cuttings. Grafting is generally carried out when trees germinate in spring, but spring is easily affected by meteorological factors such as late spring and cold, resulting in a low survival rate of grafting; rooting time is long and the rooting rate is low in cutting propagation, making it difficult to transplant. live and grow slowly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] (1) Grafting time: mid-June;

[0013] (2) Rootstock preparation: use 2-year-old Magnolia magnolia with a ground diameter of 2 cm as the rootstock, cut the rootstock 20 cm from the ground, leave 4 leaves at the bottom of the rootstock for making nutrients, and incise the rhizosphere of the rootstock 2 times, reaching the xylem deeply. Facilitate the flow of sap from the cut site;

[0014] (3) Scion selection: avoid the noon time of rainy days and high temperature weather, and cut the semi-lignified branches of the year that are strong and full of leaf buds in the sunny place in the middle and upper part of the fine-bred Jinxiu Michelia mother tree as scions, and cut the scions into 4-5cm The stem segment with 1 leaf and 1 bud is long, and the lower end of the scion is cut into two slices, 1 long and 1 short, and 1 / 3 of the xylem is cut off on the long side, with a length of 2.5 cm, and a horseshoe-shaped small slice of about 1.0 cm is cut on the opposite side of the long...

Embodiment 2

[0018] (1) Grafting time: late June;

[0019] (2) Rootstock preparation: use 2-year-old Magnolia magnolia with a ground diameter of 3 cm as the rootstock, cut the rootstock 40 cm from the ground, leave 8 leaves at the bottom of the rootstock for the production of nutrients, and incise the rhizosphere of the rootstock 3 times, reaching the xylem deeply. Facilitate the flow of sap from the cut site;

[0020] (3) Scion selection: avoid the noon time of rainy days and high temperature weather, and cut the semi-lignified branches of the year that are strong and full of leaf buds in the sunny place in the middle and upper part of the fine-bred Jinxiu Michelia mother tree as scions, and cut the scions into 4-5cm The stem segment with 1 leaf and 1 bud is long, and the lower end of the scion is cut into two slices, one long and one short. The long face cuts off 1 / 3 of the xylem, and the length is 3.0 cm. On the opposite side of the long face, a horseshoe-shaped small slice of about 1.0...

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Abstract

The invention discloses a grafting propagation method for jinxiu michelia figo, and belongs to vegetative propagation methods for plants. The grafting propagation method comprises the following steps of grafting time selecting, rootstock preparing, scion selecting, grafting and managing after grafting. According to the grafting propagation method, the good characteristics of enjoyment, high cold resistance and the like of the jinxiu michelia figo can be remained, and the survival rate can be improved by 20-30 percent compared with spring grafting; due to the facts that in late spring and early summer, trees grow fast, the sap fluidity is strong and grafting seedlings are rapid in growth speed and strong in adaptability, the method overcomes the defects that spring grafting is low in survival rate and slow in growth.

Description

technical field [0001] The invention relates to a method for asexual propagation of woody plants, in particular to a method for grafting and propagating Michelia splendens. Background technique [0002] Splendid Michelia (Michelia maudiae 'jinxiu'), an evergreen tree belonging to the genus Michelia in the family Magnoliaceae. It is a varietal single plant selected from Shenshan Michelia by Jiangsu Academy of Forestry Sciences. It has straight trunks, flat side branches, full trees with white flowers in early spring, red seeds, oblique oval shape, rapid growth, and strong cold resistance. sex. It has a beautiful tree shape, large and fragrant flowers, and high ornamental and economic value. This variety was awarded the certificate of new plant variety rights by the State Forestry Administration in September 2011. Splendid Michelia can be propagated by grafting or cuttings. Grafting is generally carried out when trees germinate in spring, but spring is easily affected by met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/06
CPCA01G2/30
Inventor 窦全琴董筱昀吕运舟黄利斌
Owner JIANGSU ACAD OF FORESTRY
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