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Method of utilizing cornus walteri superior-tree twigs for cuttage breeding

A technique for cutting and cutting of twigs, which is applied in the field of propagation by the cuttings of twigs of T. chinensis tree, can solve the problems of difficulty in maintaining the excellent characteristics of the original variety, difficulty in rooting of tender twigs and cuttings of T. chinensis, large coefficient of variation, etc. The effect of sufficient, sufficient resources and broad application prospects

Active Publication Date: 2019-04-19
SHANDONG FOREST SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The seedling propagation method of Trichosanthes is mainly based on seed propagation. The advantages of seed propagation are large number of reproduction, complete root system, and strong growth, but the disadvantage is that the coefficient of variation is large, and it is difficult to maintain the excellent characteristics of the original variety. In the process of utilizing excellent clones, cutting seedlings is one of the main technical measures for rapid propagation
[0004] In the domestic research reports on the cutting propagation of Trichosanthes, it is generally difficult to root and the rooting rate is low by using the cuttings of Trichosanthes twigs, and systematically study the middle and upper twigs of the current-year-old and semi-lignified branches of Trichosanthes excellent tree as cuttings There is no report in the literature
There is no report on the patent on the method of using the cuttings and breeding of the twigs of the excellent tree

Method used

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  • Method of utilizing cornus walteri superior-tree twigs for cuttage breeding
  • Method of utilizing cornus walteri superior-tree twigs for cuttage breeding
  • Method of utilizing cornus walteri superior-tree twigs for cuttage breeding

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Embodiment 1

[0029] Embodiment 1 A kind of method that utilizes the cutting propagation of the tender branches of the tree

[0030] (1) cutting ear selection: the time period is in mid-May every year, selects the middle and upper shoots of the current year, semi-lignified branches of P. chinensis as cuttings, and the average length of pruning branches is 10cm; The method for described pruning branches is: The upper end of the branch is cut flat 1cm above the first node, and the lower end of the branch is cut diagonally at 45°.

[0031] (2) Rooting hormone preparation: The hormones α-naphthalene acetic acid (NAA), indole acetic acid (IAA) and indole butyric acid (IBA) are used to prepare ① and ② rooting hormone solutions; wherein ① the components of rooting hormone solution In terms of mass ratio, it is a mixture of α-naphthalene acetic acid (NAA): indole acetic acid (IAA) = 1:2, and the concentration is 100 mg·L -1 The solution of 2) the rooting hormone solution is indole butyric acid (IB...

Embodiment 2

[0036] Embodiment 2 A kind of method that utilizes the cutting propagation of the tender branches of the tree

[0037] Selection of cuttings: in the mid-June period of each year, select a robust, pest-free tree, the middle and upper shoots of the current and semi-lignified branches as cuttings, and prune the branches to make the average length 13cm. Cuttings; wherein, the method for pruning branches is: the 1st section of the upper end of the branch retains 2 leaves, and each leaf retains 1 / 2, and the upper end of the branch is cut flat at 0.8cm above the first section, and the lower end of the branch is 35° oblique cut;

[0038] Rooting hormone preparation: The hormones α-naphthalene acetic acid (NAA), indole acetic acid (IAA) and indole butyric acid (IBA) are used to prepare ① and ② rooting hormone solutions; wherein the components of ① rooting hormone solution are based on quality The ratio is calculated as: a mixture of α-naphthalene acetic acid (NAA): indole acetic acid ...

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Abstract

The invention discloses a method of utilizing cornus walteri superior-tree twigs for cuttage breeding. The method includes that middle-upper twigs of current-year semi-lignified branches of a cornus walteri superior-tree are utilized as cuttings, three hormone solutions different in mass concentration and a disinfectant are used to treat the cuttings, cuttage facilities are set up, a matrix is prepared, and cuttage and management after cuttage are performed to induce rooting of cornus walteris cuttings and increase cutting rooting rate. The rooting rate reaches 92.7%, the technical problem oflow rooting rate caused by the fact that cornus walteris twigs are utilized for cuttage breeding is solved effectively, and the objective of rapid propagation of cornus walteris high-quality germplasmis achieved. By applying the method, a lot of high-quality cuttage seedlings of cornus walteris can be provided in short time, large-scale seedling culture standards are reached, and domestic demandon high-quality seedlings of cornus walteris can be met.

Description

technical field [0001] The invention relates to the technical field of seedling breeding, in particular to a method for breeding by cuttings of the tender branches of C. chinensis. Background technique [0002] Cornus walteri Wanger is a deciduous tree of the genus Cornus of the family Cornaceae, also known as carlius, oil tree, and small six valleys. The tree height can reach 15m. It is an excellent landscaping tree species and can be used for greening. Afforestation and soil and water conservation; its wood is hard and dense, and can be used for furniture, carving, construction, tools, etc.; this tree species is one of the important woody oil tree species in my country, and its fruit oil content is as high as 41.3%, which can be eaten and eaten. Used as biodiesel or lubricating oil, it has good economic value and research value in the field of bioenergy. It is widely distributed in my country. The distribution area includes the Yellow River Basin, East China and Southwest C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/10A01G24/15A01G24/25A01G24/28
CPCA01G2/10A01G24/15A01G24/25A01G24/28
Inventor 王开芳刘翠兰燕丽萍王因花任飞李庆华臧真荣吴德军
Owner SHANDONG FOREST SCI RES INST
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