Morphological descriptors of Christmas rose (Helleborus niger L.)Šušek, Andrej (Avtor) Christmas roseHelleborus nigerornamental plantsmorphological descriptorsThe Christmas rose (Helleborus niger L.) is becoming an important ornamental plant. in the future, a systematic genetic improvement will probably become inevitable and therefore the characterisation of the naturally grown populations and the accessions within germplasm collections will be extremely important for the breeders. We followed the idea that characterisation of genetic materials has to involve highly heritable morphological traits which are important for the selection and are easy for the determination. the study is based on 5-year long observations of the Slovenian and Croatian naturally grown populations and gerplasm collections. The papers describes 72 morphological traits that appear to be at last partly genetically controlled and can be used as descritors of Christmas rose genotypes.Univerza v Mariboru, Fakulteta za kmetijstvo20082015-07-10 18:14:08Delo ni kategorizirano52738sl