Screening method for chemical regulators under pollution exposure based on root development parameters

Abstract

The invention discloses a method for screening chemical regulators under pollution exposure based on root system development parameters. First, the chemical regulators to be screened are selected, and based on the characteristic parameters of root system development of crop seedlings, the chemical regulators to be screened and the crop seedlings are selected. Carry out short-term exposure experiments under polluted conditions to determine the target; then select the critical threshold to classify the regulatory effects of the chemical regulators to be screened on each target of the root system of crop seedlings to obtain a set of critical thresholds; and determine each target The contribution degree of each target is obtained to obtain the target contribution set; then the piecewise function of each type of regulation of each target is obtained; the calculation results of the piecewise function of each type of regulation of each target are combined into a single target. Deterministic matrix; multiply the target contribution degree set by the target uncertainty matrix, and select the appropriate chemical regulator according to the result of the multiplication of the two. The problem of unsatisfactory effect of the existing chemical regulator screening method 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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