Morphogen development of in vitro cultivated Shrub roses

Abstract

The article presents the study's results of the morphogen development features of the Shrub roses explants during in vitro reproduction — five cultivars from the collection fund of the National Dendrological Park "Sofiyivka" of the National Academy of Sciences of Ukraine: 'Gärtnerfreude' (W. Kordes' Söhne, 1991), 'Lavender Dream' (G. P. Ilsink, 1984), 'Pomponella' (W. Kordes' Söhne, 2005), 'Red Cascade' (R. S. Moore, 1976), 'Sommerabend' (W. Kordes' Söhne, 1995). The listed cultivars belong to those Shrub roses that form a dense cover of shoots, leaves, and flowers and are applicable for decorating plots that are of little avail for growing other ornamental plants. Shrub roses of most varieties introduced into the National Dendrological Park "Sofiyivka" National Academy of Science of Ukraine have shown sufficient adaptive ability in the natural and climatic conditions of the introduction area. Studies of gas resistance have shown that roses of this class adapt well to the conditions of the high content of traffic fumes and dust while maintaining high decorative qualities, which gave reason to recommend them for wide use in landscaping settlements of the Right-Bank Forest-Steppe Zone of Ukraine.