For citations:

Sorokopudova O.A., Khanumidi E.I. Seed productivity of Helleborus purpurascens Waldst. & Kit. during cultivation at All-Russian Research Institute of Medicinal and Aromatic Plants. IZVESTIYA OF TIMIRYAZEV AGRICULTURAL ACADEMY. 2025;1(5):34-48. (In Russ.) https://doi.org/10.26897/0021-342X-2025-5-34-48