title: Morphological and molecular analysis of rose cultivars from the Grandiflora and Kordesii garden groups
abstract: The breeding of remontant rose cultivars that are resistant to diseases and adverse conditions, with high decorative value and continuous flowering is the most important task during work with the gene pool of garden roses. Currently, intercultivar hybridization within a single garden group has largely outlived its usefulness. It is necessary to breed for highly decorative forms or cultivars that have outstanding resistance, morphological characters and patterns of seasonal rhythms, and use these
journal: Vavilov Journal of Genetics and Breeding