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Method for reducing cadmium content of rice seedling leaves, and rice seedling nutrient solution

A culture solution and rice technology, applied in a method of reducing cadmium content in rice seedling leaves and in the field of rice seedling culture solution, can solve the problems of limited research on growth and physiological effects

Inactive Publication Date: 2016-04-06
AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are not many studies on the formation of iron film on the root surface and its effects on plant growth and physiology by adding exogenous Fe and Mn.

Method used

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  • Method for reducing cadmium content of rice seedling leaves, and rice seedling nutrient solution
  • Method for reducing cadmium content of rice seedling leaves, and rice seedling nutrient solution
  • Method for reducing cadmium content of rice seedling leaves, and rice seedling nutrient solution

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Embodiment Construction

[0022] The method of the present invention is described below through specific embodiments. Unless otherwise specified, the technical means used in the present invention are methods known to those skilled in the art. In addition, the embodiments should be considered as illustrative rather than limiting the scope of the invention, the spirit and scope of which is defined only by the claims. For those skilled in the art, on the premise of not departing from the spirit and scope of the present invention, various changes or modifications to the material components and dosage in these embodiments also belong to the protection scope of the present invention.

[0023] The present invention adopts hydroponic experiment, research adds exogenous Fe (FeSO 4 ·7H 2 O) and Mn(MnSO 4 ·H 2 O) Effects on the formation of iron film on the root surface of rice seedlings, the activity of antioxidant enzymes and the uptake and transport of Cd. After 3 weeks of cultivation in an artificial cli...

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Abstract

The invention relates to a method for reducing cadmium content of rice seedling leaves, and a rice seedling nutrient solution recipe. The method comprises: (1) rice variety being Yangdao 6; (2) sowing seeds whose surfaces are disinfected to plugs which use vermiculite as medium, putting the plugs in a phytotron to culture for 1-2 weeks; (3) selecting rice seedlings to transplant in cultivating pots, the nutrient solution used for water planting being international rice nutrient solution and being added with microelements. Through discussing influence of external Fe and Mn on formation of rice seedling root iron plaque and on Cd absorption and transport and on rice seedling antioxidant enzyme activities, the method provides new thoughts for rice root iron plaque research and rice safety production on Cd polluted fields.

Description

technical field [0001] The invention belongs to the field of heavy metal pollution restoration, and relates to a method for reducing cadmium content in rice seedling leaves and a rice seedling culture solution. Background technique [0002] The large-scale development and utilization of heavy metal mineral resources and fossil fuels by humans, as well as the extensive use of heavy metal-containing pesticides and chemical fertilizers have resulted in a rapid increase in the content of heavy metal elements such as Cd in farmland soil. Cd in soil has strong mobility and is easy to accumulate in human organs through the food chain, eventually causing harm to human health. There are about 3 billion people in the world who eat rice as their staple food. China is not only a major producer of rice, but also one of the major consumers of rice. The proportion of people who eat rice as a staple food in the country is more than 60%. The restoration of heavy metal Cd pollution in rice fi...

Claims

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Application Information

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IPC IPC(8): A01G31/00C05G1/00
CPCA01G31/00C05B7/00C05C1/00C05D1/02C05D3/00C05D5/00C05D9/02
Inventor 郭军康董明芳冯人伟王瑞刚丁永祯徐应明
Owner AGRO ENVIRONMENTAL PROTECTION INST OF MIN OF AGRI
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