Method for relieving toxicity of cadmium stress to hydrocotyle verticillata
A plant and growth technology is applied in the field of alleviating cadmium stress to the poison of coriander in South America, which can solve problems such as cadmium pollution and achieve the effect of promoting growth.
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Embodiment 1
[0025] A method for mitigating cadmium stress to the poisoning of South American coriander, comprising the following steps:
[0026] (1) Clean the root soil and leaf surface with tap water first to ensure that the plants will not be damaged, then rinse with deionized water for 3 times, and dry the residual water with filter paper.
[0027] (2) Selection step (1) Pre-cultivate plants with similar biomass and plant height. The culture time is 7 days. Co., Ltd.) as the medium.
[0028] (3) Transplant the plants with consistent growth in step (2) into the cadmium solution adding exogenous sulfur, and use 0.1% KMnO 4 Immerse the roots in disinfectant solution for 10 minutes, sulfur and cadmium were separated by Mg 2 SO 4 (analytical pure) and CdCl 2 2.5H 2 Add O (analytically pure) in the form of three cadmium concentration gradients, namely 1 (Cd1), 2 (Cd2), 4 (Cd4) mg L -1 , adding 200 μM L for each cadmium concentration level -1 Na 2 SO 4 , namely S200.
Embodiment 2
[0030] A method for mitigating cadmium stress to the poisoning of South American coriander, comprising the following steps:
[0031] (1) Clean the root soil and leaf surface with tap water first to ensure that the plants will not be damaged, then rinse with deionized water for 3 times, and dry the residual water with filter paper.
[0032] (2) Selection step (1) Pre-cultivate plants with similar biomass and plant height. The culture time is 7 days. Co., Ltd.) as the medium.
[0033] (3) Transplant the plants with consistent growth in step (2) into the cadmium solution adding exogenous sulfur, and use 0.1% KMnO 4 Immerse the roots in disinfectant solution for 10min, sulfur and cadmium were separated by Na 2 SO 4 (analytical pure) and CdCl 2 2.5H 2 Add O (analytically pure) in the form of three cadmium concentration gradients, namely 1 (Cd1), 2 (Cd2), 4 (Cd4) mg L -1 , adding 400 μM L to each cadmium concentration level -1 Na 2 SO 4 , namely S400.
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