Origin of the cultivar — Rubus idaeus L. x Rubus subg. Eubatus Focke

For interspecific hybrids of raspberry Rubus idaeus L. and blackberry Rubus subg. Eubatus Focke, the origin is not a measurable trait, but rather historical information regarding the method of creation, parental forms, location, time of breeding, and the hybrid's authorship.

Researchers use genetic analysis, including the RAPD marker method, to establish kinship and clarify the history of origin. The obtained data allow for grouping hybrids according to their degree of similarity to the parental species, which directly correlates with their primocane-fruiting nature, ripening times, and resistance to pathogens.

Knowledge of the origin is critical for predicting agrotechnical properties. Hybrids with a prevalence of blackberry genetic material often require winter covering, while cultivars with a pronounced dominance of raspberry traits demonstrate increased frost resistance.