K. KOSTOV, R. BATCHVAROVA and S. SLAVOV
Agrobioinstitute, BG – 1164 Sofia, Bulgaria
KOSTOV, K., R. BATCHVAROVA and S. SLAVOV, 2007. Application of chemical mutagenesis to increase the resistance of tomato to Orobanche ramosa L. Bulg. J. Agric. Sci., 13: 505-513
In this study chemical mutagenesis of tomato seeds with Ethylmethanesulfonate was used to obtain lines with increased resistance to Orobanche ramosa L. The M2 progeny of the mutant tomato plants was screened for the response to broomrape attack in large scale experiment conducted in greenhouse. Sixteen non-infested by the parasite tomato plants were selected. Their offspring was a subject of another screening for broomrape resistance using an artificial polyethylene bags system. As a result of the experiments six lines with significantly increased level of resistance to Orobanche ramosa L., were selected.