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The method of improving the remediation ability of hyssop offspring to cadmium pollution by grafting

A technology for cadmium pollution and cadmium-contaminated soil, applied in land restoration and agricultural fields, can solve problems such as slow growth, low repair efficiency, and short individuals, and achieve the effect of improving repair ability and promoting absorption and accumulation

Inactive Publication Date: 2020-09-08
HEXI UNIV
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Problems solved by technology

At present, a relatively common method is to use cadmium hyperaccumulator plants for green restoration. There are only more than 20 species of cadmium hyperaccumulator plants that have been discovered, and these cadmium hyperaccumulator plants generally have low biomass, short individuals, and slow growth. Therefore, while continuing to screen cadmium hyperaccumulator plants, it is necessary to improve the screened cadmium hyperaccumulator plants, so that they can fully play their role in phytoremediation
[0003] Achyranthes is a cadmium hyperaccumulator plant that can be used as a remediation of cadmium-contaminated soil. Due to its small biomass, the remediation efficiency of cadmium-contaminated soil is low, so it is urgent to find ways to improve its ability to remediate soil.
At present, there is still very little information on how to further improve its ability to remediate cadmium-contaminated soil.

Method used

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  • The method of improving the remediation ability of hyssop offspring to cadmium pollution by grafting
  • The method of improving the remediation ability of hyssop offspring to cadmium pollution by grafting
  • The method of improving the remediation ability of hyssop offspring to cadmium pollution by grafting

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Embodiment 1

[0017] 1 Materials and methods

[0018] 1.1 Test material

[0019] In September 2013, the farm (farmland ecotype) of Ya'an Campus of Sichuan Agricultural University collected one plant of Pseudomonas auratus and Hyssopus chinensis with mature fruits, respectively collected the seeds, air-dried and preserved. In May 2014, the collected seeds of Hyssopus chinensis and Phyllostachys chinensis were sown and raised respectively, and grafting was started when the plant height was about 10cm. ), Hyssopus as the rootstock grafting, and the ghost needle grass as the rootstock grafting. Hyssopus chinensis without grafting (CK): The hyssopus seedlings are directly transplanted and planted, and the seeds are collected and stored. No-grafting (CK); the seedlings are directly transplanted and planted, and the seeds are collected and preserved. Hyssopus officinalis is grafted as rootstock; Hyssopus officinalis and Phyllostachys chinensis seedlings are respectively cut from about 6cm off t...

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Abstract

The invention provides a method for improving cadmium pollution repair capability of Galinsoga parviflora offspring by using grafting. The method comprises the following steps: using sticktight as a stock, and using the Galinsoga parviflora as a cion, grafting, and collecting the cion offspring after the grafting. The method is capable of promoting the grafted offspring of the Galinsoga parviflorato absorb and accumulate the cadmium, and improving the repair capability of the Galinsoga parviflora grafted offspring to cadmium-polluted soil.

Description

technical field [0001] The invention belongs to the technical field of agriculture and the technical field of land restoration, and particularly relates to a method for improving the cadmium pollution restoration ability of hyssop offspring by grafting. Background technique [0002] With the development of economy, industrial pollution, farmland irrigation, agricultural materials and other factors have caused heavy metal pollution to the soil. The cadmium pollution is particularly prominent, and the area of ​​cadmium-contaminated cultivated land in my country has reached 1.3 × 10 4 hm 2 , involving 25 regions in 11 provinces and cities, therefore, the problem of controlling cadmium-contaminated soil is imminent. At present, the more common method is to use cadmium hyperaccumulators for green restoration. Only more than 20 kinds of cadmium hyperaccumulators have been found, and these cadmium hyperaccumulators are generally low in biomass, short in size, and slow in growth. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G2/30B09C1/10
CPCB09C1/105
Inventor 张芬琴王小明曾秀存关天霞许耀照欧若含林立金廖明安
Owner HEXI UNIV
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