Some interesting features of the influence of parent plants on the characters and properties of their hybrids. Sadovod. No. 9. 1913
Selected Writings, p. 93

Ivan Michurin

Rose 'Slava Sveta'

Among my numerous hybridization experiments, I had occasion to cross a hybrid of the Damask rose and the Capuchin Persian Yellow rose with the Polyantha rose known as Clothilde Soupert; and the resultant hybrid seedling proved to have such a poor root system that, in order to save it from imminent death, I had to move it with all speed to other roots; which I did by bark grafting it, when it had only sprouted its fourth leaf, upon a seedling of Rosa canina. (Such grafting is usually successful only if the hybrid, bark grafted onto the stock as a green cutting, is protected by a glass cover.) And afterwards this hybrid developed into a very fine attar rose variety, with perfectly formed full double pink flowers and a delightful and remarkably strong fragrance. A trial steam distillation by means of a small laboratory still showed that the flowers contained a much higher percentage of attar than the regular Damask rose. (This rose variety, which I have called Slava Sveta, is described in detail, with a photograph of the flowers, in the Vestnik Sadovodstva, Plodovodstva i Ogorodnichestva for 1907, No. 7-8.) It is also in place to call the reader's attention to the very interesting fact that this hybrid has such remarkably fragrant flowers while the external appearance of its other parts, as for example the shape of the leaves and shoots, is completely identical with those of the Capuchin Yellow Rose—in consequence of which this new variety has been classed with that species. It is quite evident here that the hybrid derived only the shape and structure of its flowers from the paternal plant, namely the Clothilde, and all its other properties from its grandfather and grandmother. Its strong flower fragrance was inherited from the grandmother, the Damask rose; and it is interesting that the disagreeable odour of the flowers of the grandfather plant—the Capuchin Yellow rose—far from spoiling this fragrance, considerably intensified and improved it. Further, the outward appearance of the new variety's leaves and shoots is inherited entirely from its grandfather, the Capuchin Yellow rose. Thus, this instance too—as most others, with very few exceptions—bears out that hybrid plants derive their characters and properties not from the immediate parents, the father and mother, but from the grandfathers and grandmothers, in different combinations of their properties.

(Kazanlik x Persian Yellow) x Clothilde Soupert

Slava Sveta (слава света) = Glory of the World