Morphobiological characteristics of the variety Iris ensata ‘Vasily Alferov’ in the south of Western Siberia
Lyudmila L. Sedelnikova, Doctor of Biological Sciences, Senior Researcher
Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia, lusedelnikova@yandex.ru, https://orcid.org/0000-0002-1122-2421
Abstract
The article studies the morphobiological features of growth and development, flowering, vegetative reproduction of the domestic variety Iris ensata Thunb. ‘Vasily Alferov’ (genus Iris L., family Iridaceae Juss.) from the class of Japanese irises cultivated in the forest-steppe zone of Western Siberia. It has been established that the flowers are set and bloom in the basipetal direction, there are 3 of them in the inflorescence, less often 2 pcs. The blooming period of one flower is from 4 to 7 days, for varieties — 18—20 days. Fruit formation within one generative shoot occurs annually. The fruit is a multi-seeded loculicidal ball. Real seed productivity is 1,5 times lower than potential. The number of completed seeds in one ball is on average 96±0,5 pcs. The studied variety goes through all the phenophases of development from regrowth to pre-winter during the growing season of 143—158 days. According to the phenorhythmotype, the variety I. ensata ‘Vasily Alferov’ belongs to the long-vegetating, early-summer-flowering, short-rhizome, dense-turf wintering polycarpics. During seasonal development, four to five-year-old plants form 10—15 pcs. of vegetative shoots and 8—11 pcs. of generative shoots. For the first time, comparative data on the content of biologically active substances in the leaves and flowers of plants are presented. The quantitative content of tannins in the leaves was 7,68%, flavonols — 3,11%, catechins — 361,50 mg%, carotenoids — 76,80 mg%. In flowers, the concentration of these substances was 2—8 times lower than in leaves. The high content of pectins and protopectins (4.23—4,53%) was noted in the flowers. The variety has 125—130 points in terms of decorativeness and stability, it is winter-hardy, which makes it possible to recommend it for use in green building in the forest-steppe zone of Western Siberia.
Keywords
Class of Japanese irises, rhythm of development, morphometric characters, vegetative propagation, biologically active substances, Western Siberia.
Acknowledgments:The work was carried out within the framework of the state task of the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences under project No. AAAA-A21-121011290025-2 “Analysis of biodiversity, conservation and restoration of rare and resource plant species using experimental methods”. The author is grateful to Senior Researcher T. A. Kukushkina of the Laboratory of Phytochemistry of the Central Siberian Botanical Garden of the Siberian Branch of the Russian Academy of Sciences for her help in determining biologically active substances in leaves and flowers of plants
For citation:
Sedelnikova L. L. Morphobiological characteristics of the variety Iris ensata ‘Vasily Alferov’ in the south of Western Siberia. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2023, no. 1 (45), pp. 19—30. DOI: https://doi.org/10.32516/2303-9922.2023.45.2.
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