Method for reducing Cd content in cucumber fruits through grafting technique

Abstract

The invention discloses a method for reducing the Cd content in cucumber fruits through a grafting technique, and belongs to the technical field of control over the heavy metal content of cucumber fruits. According to the method for reducing the Cd content in the cucumber fruits through the grafting technique, grafting is conducted with common cucumbers as scions and Indo-Chinese hybrid pumpkins as stocks, cucumber plants obtained through grafting have the capability of root systems of the pumpkins of enriching Cd, the transport and transfer amount of Cd to leaves and fruits are reduced, and thus the accumulation amount of Cd in the cucumber fruits is reduced. The safety production of the cucumber fruits is obviously guaranteed, and meanwhile, the production and utilization capability of acadmium pollution field is improved. According to the grafting technique of grafting the cucumber scions onto the pumpkin stocks, the cucumbers of which the Cd content does not exceed the standard are obtained from soil with mild cadmium pollution by means of the grafting technique; meanwhile, the pumpkin stocks absorb Cd to reduce the Cd content in soil, the effect of remediating the soil with cadmium pollution is achieved, and the economical and practical biological remediation effect is achieved.

Description

technical field [0001] The invention relates to a technology for controlling heavy metal content in cucumber fruit, in particular to a method for reducing Cd content in cucumber fruit by using grafting technology. Background technique [0002] Cucumber is an annual warm-season crop of Cucurbitaceae, which originated in the southern foothills of the Himalayas. Cucumber is one of the main vegetable crops cultivated in my country and even in the world, and its position in fruit vegetables is second only to tomato. my country is a major producer of cucumbers, with a cultivation history of more than 2,000 years. The cultivation area accounts for about 60% of the world's cucumber cultivation area, and its scale and output rank first in the world. Cucumber is playing an increasingly important role in my country's agricultural structure adjustment and farmers' income increase. [0003] According to reports, the area of ​​cadmium-contaminated soil in China has reached 1.4×10 4 hm ...

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Problems solved by technology

However, at present, plants with high enrichment capacity are mainly weeds, flowers, trees, etc., which limit my country's food security production and supply capacity to a certain extent.

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