Evaluation and identification method for cadmium tolerance in zelkova schneideriana seedling stage

By conducting cadmium stress treatment and physiological index measurement on the asexual lines of beech tree, a regression equation was established, and a comprehensive score of cadmium resistance was calculated, which solved the problem of lack of reliable evaluation indicators in the existing technology, and an efficient method for early cadmium tolerance breeding in beech tree was realized.

CN119643475APending Publication Date: 2025-03-18ZHEJIANG FORESTRY ACAD
0 Cites 0 Cited by

Patent Information

Application Number
CN202411671041.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The prior art lacks reliable evaluation indicators for the selection and breeding of cadmium to beech tree, resulting in abundant resources of beech tree and large differences in repair abilities between species and asexual lines, and long growth cycles.

Method used

By pre-culturing the cutters of asexual lines of beech tree in different varieties, it is divided into measurement group and control group, and cadmium stress treatment is carried out, physiological indicators are measured, and the relationship between physiological indicators and cadmium resistance characteristics is constructed, and the regression equation for the evaluation of cadmium resistance characteristics in beech tree seedlings is established, and the comprehensive scores of cadmium resistance of different varieties are calculated.

Benefits of technology

It provides an efficient method and scientific theoretical basis to provide germplasm resources for the breeding of beech resistant varieties, and helps to select beech varieties with high cadmium tolerance in the early stage.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a zelkova schneideriana seedling stage cadmium tolerance evaluation and identification method which comprises the following steps: (1) pre-culturing zelkova schneideriana clone cutting seedlings of different varieties, taking a plurality of plants from each variety, and dividing the plants into a determination group and a control group; (2) performing cadmium stress treatment on the determination group, and performing contrast treatment on the control group; (3) respectively testing the physiological indexes of the measurement group and the control group treated in the step (2), constructing the relationship between the physiological indexes and the cadmium tolerance, and establishing a regression equation for evaluating the cadmium tolerance in the zelkova schneideriana seedling stage; (4) calculating according to the regression equation to obtain cadmium tolerance comprehensive scores of different varieties of zelkova schneideriana, and comprehensively sequencing the varieties of zelkova schneideriana according to the cadmium tolerance comprehensive scores, wherein the zelkova schneideriana varieties with higher cadmium tolerance comprehensive scores have higher cadmium tolerance; the smaller the cadmium resistance comprehensive score of the zelkova schneideriana variety is, the weaker the cadmium resistance is. The invention provides an efficient method and a scientific theoretical basis for evaluating the early-stage cadmium tolerance of the zelkova schneideriana.
Need to check novelty before this filing date? Find Prior Art