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Method for using mutual grafting of different ecological galinsoga parviflora to adjust cadmium content in offspring

An eco-type, Achyranthes technology, applied in grafting and other directions, can solve the problems of difficult to achieve safe production of grafted offspring, reduce cadmium content of grafted offspring, etc., and achieve the effects of improving enrichment capacity and reducing cadmium content.

Inactive Publication Date: 2018-06-01
SICHUAN AGRI UNIV
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Problems solved by technology

However, the above-mentioned grafting methods are all used to improve the cadmium enrichment ability of the offspring of cadmium hyperaccumulator plants to the soil cadmium, and cannot be used to solve the problem of reducing the cadmium content of the grafted offspring. Therefore, it is difficult to achieve the safety of the grafted offspring by using the above method Production

Method used

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  • Method for using mutual grafting of different ecological galinsoga parviflora to adjust cadmium content in offspring
  • Method for using mutual grafting of different ecological galinsoga parviflora to adjust cadmium content in offspring
  • Method for using mutual grafting of different ecological galinsoga parviflora to adjust cadmium content in offspring

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Embodiment

[0022] (1) Test method

[0023] 1.1 Test material

[0024] Achyranthes chrysanthemum seeds were collected from the Tangjiashan lead-zinc mining area (mine eco-type) in Hanyuan County, Ya'an City, Sichuan Province and the farmland of Ya'an Campus of Sichuan Agricultural University (farmland eco-type). Sichuan Agricultural University Ya'an Campus Farm (30°23'N, 103°48'E) is located in Yucheng District, Ya'an City, Sichuan Province, with an average altitude of 620m. It belongs to the subtropical humid monsoon climate zone. The annual average temperature is 16.2°C and the annual average rainfall is 1743.3mm , the annual average sunshine is 1035h, and the annual average evaporation is 1011.2mm[17]. The Tangjia lead-zinc mining area (29°24'N, 102°38'N) is located in Tangjia Township, Hanyuan County, Ya'an City, Sichuan Province, with an average altitude of 890m. The existing reserves of lead-zinc ore are 1.458 million tons, and the annual mining is 100,000 tons. It has been contin...

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Abstract

The invention provides a method for using mutual grafting of different ecological galinsoga parviflora to adjust the cadmium content in offspring, and belongs to the technical field of plant offspringheavy metal pollution restoration. According to the method for using mutual grafting of different ecological galinsoga parviflora to adjust the cadmium content in the offspring, farmland ecological galinsoga parviflora is used as a stock, mine ecological galinsoga parviflora is used as a scion to be grafted, improved galinsoga parviflora grafted offspring is obtained, and the cadmium content of the stock offspring in the improved galinsoga parviflora grafted offspring is obviously lowered compared with the not grafted offspring, while the cadmium content of the scion offspring is obviously increased compared with the not grafted offspring. By means of the method, the cadmium content of the galinsoga parviflora grafted offspring can be well adjusted, on one hand, cadmium pollution to edible wild herb type galinsoga parviflora grafted offspring can be restored, and edible wild herb crops are safely produced; on the other hand, through grafting, the enriching capability of hyperaccumulation plant galinsoga parviflora for heavy metal cadmium in soil can also be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of remediation of heavy metal pollution by offspring of plants, and in particular relates to a method for grafting different ecological types of Achyranthes chrysanthemums to regulate the cadmium content of offspring. Background technique [0002] With the rapid development of modern industry and agriculture, the pollution of heavy metals in my country's soil is becoming more and more serious. The cultivated land polluted by heavy metals such as lead, arsenic, cadmium, and chromium is nearly 2×10 7 hm 2 , accounting for about 1 / 5 of the total cultivated land area. Among the heavy metal elements, cadmium is considered to be the most important element in the heavy metal pollution of cultivated land, and the pollution incidence rate reaches 25.20%. Planting crops on soil with excessive cadmium content will lead to plant poisoning, mainly manifested as stem and root growth retardation, yellowing leaves, folds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/30
Inventor 谢永东马倩倩姚欢廖明安林立金吕秀兰邓群仙王进汪志辉梁东夏惠王迅唐懿
Owner SICHUAN AGRI UNIV
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