Reduced Bacterial Wilt in Tomato Plants by Bactericidal Peroxyacetic Acid Mixture Treatment
Hong, J.K., Gyeongnam National University of Science and Technology (GNTech), Jinju, Republic of Korea | Jang, S.J., Gyeongnam National University of Science and Technology (GNTech), Jinju, Republic of Korea | Lee, Y.H., Gyeongnam National University of Science and Technology (GNTech), Jinju, Republic of Korea | Jo, Y.S., Gyeongnam National University of Science and Technology (GNTech), Jinju, Republic of Korea | Yun, J.G., Gyeongnam National University of Science and Technology (GNTech), Jinju, Republic of Korea | Jo, H., Sejong University, Seoul, Republic of Korea | Park, C.J., Sejong University, Seoul, Republic | Kim, H.J., Daesung C and S Co., Ltd., Seoul, Republic of Korea
Peroxyacetic acid mixture Perosan, composed of peroxyacetic acid, hydrogen peroxide and acetic acid, was evaluated for eco-friendly management of tomato bacterial wilt by Ralstonia pseudosolanacearum. Perosan drastically suppressed in vitro growth of R. pseudosolanacearum in liquid cultures in dose- and incubation time-dependent manners. Higher perosan doses (0.1 and 1%) caused lowered pH and phytotoxicity to detached leaves of two tomato cultivars Cupirang and Benekia 220 in aqueous solution. Treatment with 0.01% of Perosan delayed wilting symptom significantly in the detached leaves of two cultivars inoculated with R. pseudosolanacearum (10∨7 cfu/ml). Soil drenching of 5% Perosan solution in pots caused severe tissue collapse of tomato seedlings at the four-week-old stage of two tomato cultivars. Treatment with 1% Perosan by soil-drenching significantly reduced bacterial wilt in the tomato seedlings of two cultivars. These findings suggest that Perosan treatment can be applied to suppress bacterial wilt during tomato production.
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