Response of Pepper Varieties, F1 Hybrids and Breeding Lines to Verticillium Dahliae Kleb. in Two Methods of Infestation

Maritsa Vegetable Crops Research Institute, BG - 4003 Plovdiv, Bulgaria


MASHEVA, S. and V. TODOROVA, 2013. Response of pepper varieties, F1 hybrids and breeding lines to Verticillium dahliae Kleb. in two methods of infestation. Bulg. J. Agric. Sci., 19: 133-138


During the period 2006-2007 in the Maritsa Vegetable Crops Research Institute, Plovdiv have been tested twenty breeding lines, varieties and F1 hybrids from different variety types – var. Conicum, var. Kapia and ser. var. Grossum. Plants from each genotype were tested by two methods – direct planting in infected soil and infestation in transplanting by root-dip techniqueand planting in the same soil. The level of resistance to Verticillium dahliae Kleb in the studied materials is higher in planting in infected soil without additional infestation. Firmly low index of infestation (below 5 %) is found in line 820/03 from kapia type and in line 398/03 from ser. var. Grossum. Variety Yasen F1 is more slightly susceptible to the pathogen in planting in infected soil without additional infestation. Lower index of infestation was determined in candidate-variety Milkana F1 in infestation by root-dip technique and planting in infected soil. The breeding line 398/03 is with high level of resistance in the two methods of infestation and could be used as a source of resistance in the future breeding programs.

Key words: Capsicum annuum L., Verticillium wilt, index of infestation

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