AN ANALYSIS OF THE PHENOTYPICAL VARIABILITY OF BREEDING MATERIAL OF MONARDA × HYBRIDA HORT.
The paper analyses phenotypic variability of generative and vegetative organs in free-pollinated breeding forms of Monarda × hybrida hort. This study allowed us to select forms showing divergence of characters within the scope of phenologic stock. The frequency of valuable traits’ occurrence was determined in the course this study that implies raising efficiency of breeding.