| Issue |
E3S Web Conf.
Volume 703, 2026
V International Conference on Ensuring Sustainable Development: Ecology, Earth Science, Energy and Agriculture (AEES2025)
|
|
|---|---|---|
| Article Number | 03010 | |
| Number of page(s) | 8 | |
| Section | Current Agricultural Development | |
| DOI | https://doi.org/10.1051/e3sconf/202670303010 | |
| Published online | 09 April 2026 | |
Assessment of tomato line resistance to bacterial canker (Clavibacter michiganensis subsp. michiganensis)
Russian State Agrarian University - Moscow Timiryazev Agricultural Academy, Moscow, 127434, Russian Federation
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
The study evaluated the resistance of 11 tomato lines and cultivare to bacterial canker caused by Clavibacter michiganensis subsp. michiganensis (Cmm). Plants were inoculated with Cmm strain 1203 by injection of a bacterial suspension. Symptoms were assessed after 4 weeks using a 4-point scale with calculation of the Disease Index (DI), and a threshold of DI < 2,5 points was used to distinguish samples with partial resistance. All genotypes exhibited symptoms; however, symptom severity varied substantially. The lowest DI values were recorded for lines Cm VF 232 (1,6 points) and IRAT L3 (1,9 points), and moderate resistance was observed for line Heinz 2990 (2,3 points). The control cultivar Belyi Naliv 241 was highly susceptible (3,6 points). The obtained data confirm genetic variability in resistance and identify promising donors for breeding tomato resistance to bacterial canker.
© The Authors, published by EDP Sciences, 2026
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