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A method for improving the salt-tolerant performance of dry willow

A technology of salt tolerance and high performance, which is applied in the field of improving the salt tolerance of dry willow, can solve the problems of poor salt tolerance, low survival rate, and no improvement of salt tolerance of dry willow, and achieves low cost, simple operation, easy acceptance and The effect of mastering

Active Publication Date: 2020-08-25
SHANDONG FOREST SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dry willow is widely distributed, grows fast, and has a life span of 50 to 70 years. There are also old trees over 200 years old, which have good application value, but their salt tolerance is poor, and the salt tolerance is only 0.2-0.25%. This concentration will make the survival rate very low
At present, there is no effective method to improve the salt tolerance of willow

Method used

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  • A method for improving the salt-tolerant performance of dry willow

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1, selection of parents: choose Salix salix as the female parent and Salix salix as the male parent.

[0041] Step 2, mother plant selection: select the 5-year-old Salix isolated wood as the female plant, and the 5-year-old Salix isolated wood as the male plant.

[0042] Step 3, preparation of flowering branches: take the healthy branches in the middle and upper part of the willow crown as the female flowering branches, and the middle and upper branches of the Salix salix crown as the male flowering branches. The diameter of the female flower branch is 2-3cm, and the length is about 100cm. The diameter of the male flower branch is 0.8-2.0cm, and the length is 50-100cm.

[0043] Step 4: Hydroponic hybridization in the greenhouse: Separate the male and female flower branches according to the hybrid combination and open them in the greenhouse for hydroponic cultivation. Control the greenhouse temperature at 20°C and humidity around 60%. Change the water once a day a...

Embodiment 2

[0051] Step 1, selection of parents: choose Salix salix as the female parent and Salix salix as the male parent.

[0052] Step 2, mother plant selection: select the 5-year-old Salix isolated wood as the female plant, and the 5-year-old Salix isolated wood as the male plant.

[0053] Step 3, preparation of flowering branches: take the strong branches in the middle and upper part of the willow crown as the female flowering branches, and the lower branches of the Salix salix crown as the male flowering branches. The diameter of the female flower branch is 2-3cm, and the length is about 100cm. The diameter of the male flower branch is 0.8-2.0cm, and the length is 50-100cm.

[0054] Step 4: Hydroponic hybridization in the greenhouse: Separate the male and female flower branches according to the hybrid combination and open them in the greenhouse for hydroponic cultivation. Control the greenhouse temperature at 18°C ​​and humidity around 60%. Change the water once a day and cut off t...

Embodiment 3

[0062] Step 1, selection of parents: choose Salix salix as the female parent and Salix salix as the male parent.

[0063] Step 2, mother plant selection: select 5-year-old Salix salix isolated wood as the female plant, and 5-year-old Salix salix forest as the male plant.

[0064] Step 3, preparation of flowering branches: take the healthy branches in the middle and upper part of the willow crown as the female flowering branches, and the middle and upper branches of the Salix salix crown as the male flowering branches. The diameter of the female flower branch is 2-3cm, and the length is about 100cm. The diameter of the male flower branch is 0.8-2.0cm, and the length is 50-100cm.

[0065] Step 4: Hydroponic hybridization in the greenhouse: Separate the male and female flower branches according to the hybrid combination and open them in the greenhouse for hydroponic cultivation. Control the greenhouse temperature at 18°C ​​and humidity around 60%. Change the water once a day an...

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Abstract

The invention discloses a method for improving the salt tolerance of saliz matsudana. The saliz matsudana and salix mongolica are crossed, hybrid seedlings are subjected to static cultivation, cuttings are made for water transplanting seedling cultivation, and salt concentration stress treatment is conducted after lignification of water transplanting seedling stems starts. The salt tolerance of the saliz matsudana is improved, the salt tolerance is increased to more than 0.5%, and the purpose of cultivating salt tolerant fast-growing willow is achieved. The disclosed hybridization breeding method significantly improves salt tolerance of hybrid offsprings by crossing salix mongolica male flower branches at suitable age and location with saliz matsudana. The method is simple to operate, easy to accept and master and low in cost and has good popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of stress-resistant physiology of trees, and in particular relates to a method for improving the salt-tolerant performance of willows. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] There are about 5.7 billion mu of land in the world with varying degrees of salinization, about 10% of the arable land area. There are about 1.5 billion mu of saline land in my country, including about 560 million mu of modern saline soil, about 670 million mu of residual saline soil, and about 21.6 billion mu of other potential saline soil. How to develop and utilize hundreds of millions of acres of salinized soil in my country, cultivate salt-resistant crop varieties, and increase crop yield has become a very important task in my country's agricultural production. [0004] There are more than 500...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01G2/10A01H1/02
CPCA01G2/10A01G17/005A01H1/02
Inventor 秦光华于振旭宋玉民乔玉玲彭琳
Owner SHANDONG FOREST SCI RES INST