Hevesi, M., Papp, J., Jámbor-Benczúr, E., Kaszáné Csizmár, K., Pozsgai, I., Gazdag, G., & Balla, I. (2000). Testing the virulence of some Hungarian Erwinia amylovora strains on in vitro cultured apple rootstocks. International Journal of Horticultural Science, 6(4), 52–55. https://doi.org/10.31421/IJHS/6/4/223
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
A useful method was improved to test and to evaluate the susceptibility of plants to fire blight and the virulence of E. amylovora strains. Six Hungarian strains from different host plants were tested on in vitro cultured apple rootstocks. Disease rating was used for the characterization of the process of disease development. The different strains had different capacity to cause disease, mainly in the first period of incubation. There were significant differences between the virulence of the strains.