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

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...

AI Technical Summary

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

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