A method for controlling low temperature stress of tomatoes based on nano-copper sulfide

By using copper sulfide nanoparticles as a cold-resistant agent and optimizing the application method and concentration, the problems of high price and environmental hazards of silver-based nanomaterials were solved, achieving efficient and safe protection against low-temperature stress in tomatoes and significantly improving the growth performance of tomatoes.

CN120323151BActive Publication Date: 2025-10-24INST OF AGRI RESOURCES & ENVIRONMENT SICHUAN ACAD OF AGRI SCI +1
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Patent Information

Application Number
CN202510690105.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-10-24
Estimated Expiration
2045-05-27

AI Technical Summary

Technical Problem

Existing silver-based nanomaterials are expensive and environmentally harmful in controlling low-temperature stress in crops, making it difficult to meet the demand for efficient and safe cold-resistant agents.

Method used

Copper sulfide nanoparticles were used as a cold-resistant agent to treat tomato seeds or leaves through seed dressing or foliar application, and the application concentration and method were optimized to enhance the tomato's resistance to low-temperature stress.

Benefits of technology

Copper sulfide nanoparticles significantly increased tomato plant height and biomass at a foliar application concentration of 200 mg/L, and enhanced the tomato's resistance to low-temperature stress, showing better results than traditional cold-resistant agents and other sulfur-based nanomaterials.

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Abstract

The application discloses a method for controlling low-temperature stress of tomatoes based on nano copper sulfide, and belongs to the technical field of novel cold resistance. The application prepares copper sulfide nanoparticles, and uses the copper sulfide nanoparticles to promote the low-temperature stress resistance of tomatoes. The application controls the low-temperature stress of tomatoes by foliar application of CuS NPs, so that the plant height of the tomatoes under low-temperature stress is increased by 14.96%, and the fresh weight of the aboveground part and the fresh weight of the underground part are respectively increased by 32.21% and 64.37%. The prepared copper sulfide nanoparticles are superior to conventional copper-based materials, sulfur-based materials, traditional cold resistance agents and other sulfur-based nanoparticles in effect.
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