Resistance of Bulgarian tomato varieties to the races of Xanthomonas vesicatoria

Abstract. Bacterial spot of tomato caused by Xanthomonas vesicatoria is an economically important disease that reduces the quality and the production yield. Races Т1, Т2 and Т3 have been differentiated in the natural population of X. vesicatoria. In this research 33 tomato varieties f
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