Grafting method capable of significantly improving high-cadmium soil cadmium stress resistance of tomatoes

A tomato and soil technology, applied in grafting, fruit tree cultivation and other directions, can solve the problems affecting the diet health of tomato planters and the accumulation of cadmium in tomato, and achieve the effects of alleviating toxic effects, reducing the accumulation of heavy metals, and enhancing copper resistance.

Inactive Publication Date: 2019-04-09
SICHUAN AGRI UNIV
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  • Description
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Problems solved by technology

[0003] Tomato is a representative of solanaceous vegetables, and is an important vegetable widely cultivated all over the world. It plays an important role in the annual supply of vegetables. However, due to the excessive cadmium content in the soil, a large amount of cadmium has accumulated in tomato, which has affected the quality of tomato. planting and people's diet health

Method used

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  • Grafting method capable of significantly improving high-cadmium soil cadmium stress resistance of tomatoes
  • Grafting method capable of significantly improving high-cadmium soil cadmium stress resistance of tomatoes
  • Grafting method capable of significantly improving high-cadmium soil cadmium stress resistance of tomatoes

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Embodiment Construction

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the examples. It must be pointed out that the following examples are only used to explain and illustrate the present invention, and are not intended to limit the present invention . Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the invention still belong to the protection scope of the present invention.

[0019] Example of test method

[0020] (1) Preparation of contaminated soil

[0021] Take soil from the paddy fields near Sichuan Agricultural University, air dry the soil thoroughly, crush the soil until it can pass through a 5mm sieve, put the air-dried and sieved soil into a plastic bucket with a height of 40cm and a diameter of 30cm. Ensure that the net weight of soil in each pot is 20kg, and then add analytically pure CdCl ...

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Abstract

The invention provides a grafting method capable of significantly improving high-cadmium soil cadmium stress resistance of tomatoes and belongs to the field of application of plant grafting technologyto resistance to heavy metal ion stress. According to the grafting method, a super tuotuosijia wild tomato variety is used as stock, hongyu F1 small tomato or Zhongyanhong No.6 tomato are used as scions for grafting, and the cadmium ion concentration is up to 10 mg/kg. the stock and the scions are selected for grafting, under high cadmium stress, growth of grafted tomatoes and fresh weight of fruits are obviously superior to those of other grafting methods, by means of the grafting method, the cadmium content of each part of tomatoes is reduced obviously, and the method can be welled appliedto control work of standard exceeding of cadmium content of vegetables and fruits such as tomatoes.

Description

technical field [0001] The invention belongs to the technical field of plant grafting resistance to heavy metal ion stress, and specifically relates to a grafting method for significantly improving tomato resistance to cadmium stress in high-cadmium soil. Background technique [0002] Soil is the basis of agricultural production and an important resource for human survival. With the development of human society, the high degree of industrial progress and the rapid expansion of cities, a large number of heavy metal ions are accumulated in the soil, and then absorbed through the roots of vegetables, resulting in pollution of vegetables. The excessive accumulation of various heavy metals in the soil, especially the excessive accumulation of Cd, will seriously affect the normal agricultural production activities and cause serious threats to the living environment of human beings. [0003] Tomato is a representative of solanaceous vegetables, and is an important vegetable widely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/05A01G2/30
CPCA01G2/30A01G22/05
Inventor 余雪娜唐懿李焕秀林仁亨谢永东王力明林立金谭华强廖继超廖明安
Owner SICHUAN AGRI UNIV
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