On the biology of rare species of genus Sisyrinchium L.
Lyudmila L. Sedelnikova, Doctor of Biological Sciences, Leading 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 discusses and describes morphological features of six species of the genus Sisyrinchium (Sisyrinchium, Blue-eyed) that passed an introduction test in the forest-steppe zone of Western Siberia (south of Novosibirsk). It was found that winter sowing lasting 8 months increases the germination of seeds compared to spring, it is 80—90%. The virginal period of plants is very short and lasts 12—13 months. The generative period begins in the second year. Flowering was noted from the second decade of June to the third decade of July. The flowers are laid and develop in the acropetal direction, from 4 to 7 in the inflorescence. The inflorescence is an umbrella-shaped brush. The seeds are small, black, of various shapes from spherical to obverse-conical. The fruit is a spherical capsule. The morphological features of the studied species are described: S. angustifolium, S. albidum, S. bermudiana, S. californicum, S. montanum, S. patagonicum. It is noted that such species as S. albidum, S. bermudiana, S. californicum, S. patagonicum are insufficiently frost-resistant in the conditions of the forest-steppe zone of Western Siberia, prone to spring maturation and have poor survival rate. The North American species S. angustifolium and S. montanum have a higher introduction capacity and resistance. They have been preserved in the collection for a period of many years of testing (1990—2023), they bear fruit, are capable of natural regrowth and reproduce vegetatively. During the seasonal period (from 105 to 122 days), plants of these species consistently undergo all the phenophases of development and hibernate in a winter-green state. According to the phenorhythmotype, they belong to long-term vegetating summer flowering plants. According to the biomorph, these species belong to the short-rhizome, loose-turf, wintering polycarpics. The habitus of the plants is compact (height 20—40 cm, diameter 15—30 cm). It has been established that the species S. albidum and S. patagonicum develop as annual plants, and S. bermudiana and S. californicum as biennial plants. The study of growth and development has shown that adapted perennial species of S. angustifolium and S. montanum can be used as border and groundcover plants on slopes, reclamation sites and for the decoration of rocky gardens as soil-strengthening, turf-forming plants of the loose-leaf type.
Key words
Sisyrinchium, species, the rhythm of development, biomorphological features, reproduction, introduction, forest-steppe, the Novosibirsk region.
Acknowledgments: The work was carried out within the framework of the state assignment 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”
For citation:
Sedelnikova L. L. On the biology of rare species of genus Sisyrinchium L. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2024, no. 2 (50), pp. 121—130. DOI: https://doi.org/10.32516/2303-9922.2024.50.7.
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