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Catalpa bungei twig cutting propagation method

A technology of twig cuttings and catalpa, which is applied in the field of asexual rapid propagation of forestry seedlings, can solve the problems of long cultivation time, lack of catalpa seedlings, and mixed varieties, so as to improve the rooting rate, shorten the seedling cultivation period, and realize The effect of breeding

Inactive Publication Date: 2018-05-29
HUBEI FORESTRY SCI INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to overcome the lack of existing catalpa seedlings, mixed varieties, and long cultivation time

Method used

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  • Catalpa bungei twig cutting propagation method
  • Catalpa bungei twig cutting propagation method
  • Catalpa bungei twig cutting propagation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, the present embodiment provides a kind of catalpa twig cutting propagation method, carries out according to the following sequence of steps:

[0035] (1) Acquisition of twig cuttings

[0036] Collect twigs of catalpa in the same year and keep the top and 4 young leaves on the top, trim the twigs into 6cm spikes, bundle each 30-50 roots, soak in clean water, and expose the top for later use.

[0037] Among them, this embodiment has strict requirements on the fringes used for cuttings. The fringes used are pruned from young shoots that are strong, full of buds, and young and not lignified in the year, and are used in the process of collecting shoots. Moisturize with a wet towel or water and bring it back indoors.

[0038] (2) hormone treatment

[0039] Choose the twig fringe bundled up in step (1), put its base at a concentration of 500mg L -1 Quickly dip in the ABT solution for 10s.

[0040] (3) Twig cuttings

[0041] Select the twig fringe ...

Embodiment 12

[0051] The present embodiment has screened the root-promoting hormone used in the method of cutting propagation of the catalpa twig. The selection and use of the root-promoting hormone are the key factors for the plant to carry out cutting propagation, and are also the key of the present invention. Therefore, for different cuttings It is very important for tree species to carry out the screening of root-promoting culture hormone type and concentration. The present embodiment uses ABT (the root-inducing powder developed by Chinese Academy of Forestry) as the basic root-promoting hormone of the present invention and IAA (indole acetic acid), IBA (indole butyl Acid), NAA (naphthalene acetic acid) and other basic root-promoting hormones were compared, and the root-promoting hormones of Catalpa twig cuttings were screened. The results are shown in Table 2.

[0052] Table 2:

[0053]

[0054] It can be seen from the above table that ABT is used as the basic root-promoting hormone...

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Abstract

The invention provides a catalpa bungei twig cutting propagation method which includes the steps: 1) twig cutting slip acquisition; 2) hormone treatment; 3) twig cutting; 4) seedling hardening and transplanting. According to the catalpa bungei twig cutting propagation method, propagation materials come from a matrix, namely, a bred excellent variety mother tree, all produced seeds and seedlings represent mother clone excellent varieties, variety mixing is avoided, only 25-30 days are needed from cutting to cutting seedling field transplantation, seedling culture time is remarkably improved, the rooting rate, the survival rate and the seedling strengthening rate of cutting seedlings are ensured by controlling a manual cutting environment, and culture time and production cost are greatly saved.

Description

technical field [0001] The invention belongs to the technical field of rapid asexual propagation of forestry seedlings, and in particular relates to a cutting propagation method of catalpa twigs. Background technique [0002] The catalpa tree is majestic, tall and straight, with multi-colored flowers, excellent material, straight texture, not warped or cracked, corrosion-resistant and moisture-resistant. It is a precious and high-quality timber tree species unique to my country and a famous garden ornamental tree species. It has been known as the "king of wood" since ancient times. say. Catalpa has strong growth adaptability, salt and alkali resistance, acid resistance, sound attenuation, dust retention, adsorption of sulfur dioxide, chlorine and other toxic gases, and has no pollution to the environment. It has been recognized as a "human health tree species" by the United Nations World Health Association. With the increasing demand for wood in modern society and people's u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/10
Inventor 张新叶陈慧玲黄国伟彭婵张亚东樊孝萍马林江李振芳徐红梅赵天宇
Owner HUBEI FORESTRY SCI INST
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