A method for propagating willows by sowing cuttings with single-bud short branches

A cultivating method and a short branch technology are applied in the field of willow tree breeding by using single bud short branch sowing cuttings, can solve the problems of low seedling formation rate and nursery emergence rate, uneven growth, large variation in seedling shape, etc. The effect of survival rate, simple nursery facilities, and lower production costs

Inactive Publication Date: 2018-04-06
SHANDONG FOREST SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Cutting propagation is the main means of willow seedling breeding, but the existing cutting breeding mainly uses the trunk of willow seedlings or the branches of big trees as breeding materials, and is carried out in the field. Due to problems such as large morphological variation, uneven growth, and low rate of seedling emergence and nursery emergence, it is impossible to provide a large number of seedlings with uniform specifications and quality in a short period of time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1. Selection of improved varieties: Select Bohai No. 1 willow improved varieties that are easy to propagate by cuttings, have more side branches, and grow robustly.

[0035] Step 2, cuttings preparation and processing: select 1-2 year-old branches with a diameter of 0.2-1cm on the strong seedlings of the above-mentioned excellent clones, intercept and make single-bud short branch cuttings, each cutting is 1.5-2.5cm long, and only keep For the top 1 leaf bud, place the cut cuttings at 300mg.kg -1 Soak in the GGR6 solution for about 1 hour.

[0036] Step 3. Preparation of slotting bed: From late February to early March, make a bed in the greenhouse. It should be fine and leveled. The width of the bed is about 2 meters, and the length depends on the amount of sowing. The soil reaches saturation moisture content.

[0037] Step 4. Sowing in the greenhouse: Evenly spread the treated single-bud short-branch cuttings on the seedbed, sow 40,000-50,000 short-branches per a...

Embodiment 2

[0043] Step 1. Selection of improved varieties: Select improved varieties of Salix willow that are easy to propagate by cuttings, have more side branches, and grow robustly.

[0044] Step 2, cuttings preparation and processing: select 1-2 year-old branches with a diameter of 0.2-1cm on the strong seedlings of the above-mentioned excellent clones, intercept and make single-bud short branch cuttings, each cutting is 1.5-2.5cm long, and only keep For the top 1 leaf bud, put the cut cuttings in 400mg.kg -1 Soak in the GGR6 solution for about 1 hour.

[0045]Step 3. Preparation of slotting bed: From late February to early March, make a bed in the greenhouse. It should be fine and leveled. The width of the bed is about 1.5 meters, and the length depends on the amount of sowing. The soil reaches saturation moisture content.

[0046] Step 4. Sowing in the greenhouse: Evenly spread the treated single-bud short-branch cuttings on the seedbed, sow 40,000-50,000 short-branches per acre ...

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Abstract

The invention discloses a method for broadcast sowing and cuttage reproduction of willows through single-bud short branches. According to the method, thin branches of nursery stock are used as a reproduction material, the single-bud short branches are adopted as cutting slips, the reproduction material can be fully utilized, the reproduction coefficient is obviously increased, and clone nursery stock of the neat specification can be produced. The cuttage survival rate is increased by growing seedlings in a greenhouse and applying a GGR6 growth regulator, the growth cycle of the nursery stock is prolonged, the amount of growth of the nursery stock is increased, the outplanting rate of the nursery stock is also increased, the production cost is lowered, and the method is quite suitable for engineering afforestation which is large in needed seedling quantity and high in requirement for the specification and quality of the nursery stock.

Description

technical field [0001] The invention relates to seedling cutting propagation technology, in particular to a method for propagating willows by sowing cuttings with single-bud short branches. Background technique [0002] Willow has the characteristics of strong adaptability, fast growth, pruning resistance, strong germination, soft branches, and beautiful crown shape. It is widely planted on the banks of rivers and lakes, roads and courtyards. It is a very common landscaping tree species. [0003] There are mainly two kinds of willow seedling raising techniques, cutting seedling raising and sowing seedling raising, and cutting seedling raising is more commonly used. [0004] Regarding the cutting technology, it is necessary to collect and prepare the cuttings: usually the seed strips are collected during the dormant period, and the 1-2-year-old branches can be selected in autumn, stored in the open sand, and the ears are cut in spring. For the parts that are slightly worse, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00
CPCA01G17/005
Inventor 秦光华焦传礼宋玉民曹帮华乔玉玲姜岳忠刘德玺康智董玉峰王卫东王霞郭丽华于振旭
Owner SHANDONG FOREST SCI RES INST
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