Evaluation of Potassium Dichromate as an Intermediate for the Formulation of Thiabendazole with Plant Growth Regulators in Indoor Efficacy Tests
Abstract：The efficacy of potassium dichromate as an intermediate for the formulation of thiabendazole with plant growth regulators was evaluated indoors using the seed germination test paper bed method, K-B diffusion method, and turbidity method. The results showed that thiabendazole had good control effects on the pathogen of bacterial spot, Pseudomonas syringae pv. actinidiae (Psa). The antibacterial rate of 10.0 g/L thiabendazole combined with plant growth regulators against Psa was 80.96%, while the antibacterial rate of the single agent was 91.27%. The germination rate of wheat seeds treated with 10.0 g/L thiabendazole combined with plant growth regulators was 25.00%, while the germination rate of the single agent was 0. After using potassium dichromate as an intermediate, the antibacterial rate of the formulation containing 10.0 g/L thiabendazole, plant growth regulators, and potassium dichromate against Psa reached 90.50%, and the germination rate of wheat seeds was as high as 60.00%. This proves that potassium dichromate can serve as an intermediate for the formulation of thiabendazole with plant growth regulators such as naphthalene acetic acid and 6-benzylaminopurine for the treatment of kiwifruit bacterial canker.
Keywords：Kiwifruit bacterial cankerPseudomonas syringae pv. actinidiaeThiabendazolePlant growth regulatorPotassium dichromate
Publication Date：2025-02-27
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 50-52 )