Maritsa Vegetable Crops Research Institute, 32 Brezovsko shosse Str., 4003 Plovdiv, BULGARIA
Abstract. Present study was carried out to establish the influence of CuSO4.5H2O on regeneration process of Capsicum annuum L. varieties Stryama and Maritsa using cotyledon explants. Increasing the concentration of CuSO4.5H2O (0.2 0.5 and 1.0 mgL–1) in culture medium stimulated shoot buds differentiation and elongation only in explants of variety Maritsa, while in variety Stryama such effect was not observed. Significant variation among R1 plants and differences between R1 plants and their parent were obtained. For breeding purposes lines 79–2–1 and 79–2–7 from initial variety Stryama has the best complex of traits.
Keyword: Pepper, Somaclonal variation, Plant–regenerants.