Screening method of chemical regulator under pollution exposure based on root system development parameters

Abstract

The invention discloses a screening method of chemical regulator under pollution exposure based on root system development parameters, which comprises the following steps: selecting a chemical regulator to be screened, and carrying out short-term exposure experiment on crop seedlings under the conditions of the chemical regulator to be screened and pollution on the basis of root system developmentcharacteristic parameters of the crop seedlings to determine a targeted target; then selecting a critical threshold value to classify the regulating effect of the chemical regulating agent to be screened on each targeted target of the crop seedling root system to obtain a critical threshold value set; determining the contribution degree of each target to obtain a target contribution degree set; then, obtaining a piecewise function of each type of regulation effect of each targeted target; forming a single-target uncertainty matrix by calculation results of the piecewise functions of each typeof regulation effect of each target; multiplying the target contribution degree set by the target uncertainty matrix, and selecting an appropriate chemical regulator according to a multiplication result of the target contribution degree set and the target uncertainty matrix. The problem that an existing chemical regulator screening method is not ideal in effect is solved.

Description

technical field [0001] The invention belongs to the technical field of crop chemical regulation, and relates to a method for screening chemical regulators under pollution exposure conditions based on crop seedling root development parameters. Background technique [0002] With the development of the world's population and industry, food security problems caused by environmental problems have become increasingly prominent. Crop chemical regulators refer to a series of control measures that people take to make crops grow towards the expected direction or goal. Traditional agricultural production hormones usually improve the quality of agricultural products through water, fertilizer, light, heat and other conditions, while crop chemical regulation pays more attention to the stimulation of internal factors, such as plant hormone regulation. [0003] Chemical regulation is widely applied to polluted arable land to reduce the absorption of pollutants by crops, alleviate the toxic...

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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a screening method for chemical regulators under pollution exposure based on root development parameters, to solve the problem that the existing screening methods for chemical regulators have unsatisfactory effects, and the existing screening methods for chemical regulators are time-consuming Laborious, inefficient and costly screening issues

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