scholarly journals Morphological Variability of Generative Individuals of Rare Decorative Ephemeroids of the Northern Tien Shan As Evidence of Their Adaptive Potential

2021 ◽  
Vol 74 ◽  
Author(s):  
Anna Ivashchenko ◽  
Ayagoz Tolenova ◽  
Dayana Abidkulova ◽  
Karime Abidkulova

Abstract We assessed the adaptive potential of two rare decorative species listed in the Red Book of Kazakhstan : Tulipa tarda Stapf (Liliaceae) and Gymnospermium altaicum (Pall.) Spach (Berberidaceae) by studying the morphological variability of generative individuals of the species. Our studies were carried out in natural populations in the Northern Tien Shan and introduced populations of the botanical garden and urban green areas of Almaty. These species showed a high degree of adaptation under the conditions of the introduction. Moreover, Gymnospermium altaicum , accidentally introduced into the urban green area of Bukhar Zhyrau Boulevard (Almaty), had formed a naturalized population that persisted for more than 8 years. The naturalized population of Tulipa tarda in the botanical garden (Almaty), introduced more than 20 years ago by one of the authors of this article, has been in existence even longer. In the latter case, individuals of seed origin showed higher adaptive capabilities than those transferred by the bulbs of generative plants.

Author(s):  
E. N. Grishchenko

In the process of plant introduction, the main task is to study the features of their biology and ecology, and as a result, their adaptive capabilities in specific climatic conditions. In nature, species of iris ( Iris L.) are widely distributed from the Northern regions to the subtropics and have a great ecological plasticity. In the conditions of the Stavropol upland, it is possible to successfully grow representatives of the genus iris from different parts of its range. The collection of irises in the Stavropol Botanical garden has 19 species. Species of Iris furcata, I. notha, and I. pumila that are common in grass-turf and meadow steppes, and I. pseudonotha that are common in wet meadows, have a stability in the conditions of culture, and they have an annual abundant flowering and fruiting. The timing of the beginning of generative phases of I. pumila development in culture and natural populations of the Stavropol upland varies within 5-7 days. In comparison with other species of local flora in the collection I. pseudonotha is most susceptible to diseases, for species I. halophila flowering is not observed every year. Some of the species in the collection are of Far Eastern Asian origin: I. domestica, I. ensata, I. lactea, I. laevigata, I. oxypetala, I. sanguinea and North American - I. versicolor. Among them, I. domestica shows the least frost and drought resistance, the flowering of the species occurs during the hottest period - the third decade of July, however, in some years, high seed productivity was observed for the species. Irregular flowering in the I-II decade of May was observed for I. lactea and I. oxypetala. The species I. ensata blooms in early June, a month earlier than in natural populations. Most of the Iris species in the collection are stable, and to a lesser extent adaptive potential is shown by species with a narrow ecological and phytocenotic affiliation - I. domestica, I. scariosa, I. halophila, and I. lactea . Species I. pseudonotha, I. domestica, and I. graminea do not reach their natural values in terms of habitus.


Author(s):  
I. A. Syedina ◽  
I. G. Otradnykh

The primary introduction data of Scutellaria titovii Juz., S. transiliensis Juz., S. przewalskii Juz., S. sieversiiBunge at the collection of the Almaty Botanical Garden, located in Zailiysky Alatau foothill zone, is provided. The analysis of the decorative properties of Scutellaria showed that all studied species have high decorative and adaptive featuresand suitable for planting in rockeries, rock gardens and as a groundcover to strengthen gravelly slopes.


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Atanu Bhattacharya ◽  
Tobias Bolch ◽  
Kriti Mukherjee ◽  
Owen King ◽  
Brian Menounos ◽  
...  

AbstractKnowledge about the long-term response of High Mountain Asian glaciers to climatic variations is paramount because of their important role in sustaining Asian river flow. Here, a satellite-based time series of glacier mass balance for seven climatically different regions across High Mountain Asia since the 1960s shows that glacier mass loss rates have persistently increased at most sites. Regional glacier mass budgets ranged from −0.40 ± 0.07 m w.e.a−1 in Central and Northern Tien Shan to −0.06 ± 0.07 m w.e.a−1 in Eastern Pamir, with considerable temporal and spatial variability. Highest rates of mass loss occurred in Central Himalaya and Northern Tien Shan after 2015 and even in regions where glaciers were previously in balance with climate, such as Eastern Pamir, mass losses prevailed in recent years. An increase in summer temperature explains the long-term trend in mass loss and now appears to drive mass loss even in regions formerly sensitive to both temperature and precipitation.


2011 ◽  
Vol 47 (6) ◽  
pp. 475-487 ◽  
Author(s):  
A. F. Grachev ◽  
D. M. Pechersky ◽  
V. A. Tsel’movich

2012 ◽  
Vol 20 (4) ◽  
pp. 317-345 ◽  
Author(s):  
K. E. Degtyarev ◽  
T. Yu. Tolmacheva ◽  
A. V. Ryazantsev ◽  
A. A. Tret’yakov ◽  
A. S. Yakubchuk ◽  
...  

2020 ◽  
Author(s):  
George Chelnokov ◽  
Vasily Lavrushin ◽  
Ivan Bragin ◽  
Abdulaziz Abdullaev ◽  
Natalia Kharitonova

2021 ◽  
Author(s):  
L.A. Yatsenko ◽  
N.V. Dzen ◽  
N.V. Gabbasova ◽  
N.P. Mamchik

Adaptive potential is an indicator of the level of adaptability of the human body to various and changing environmental factors. The adaptive capabilities of the body are influenced not only by external factors, but also by internal - the state of the body as a whole, by the presence or absence of chronic diseases. Therefore, the adaptive potential was used as an integral indicator of a person's adaptability to production factors. The aim of the study was to assess the adaptive capabilities of the organism of workers in greenhouse farms in the Voronezh region. The study was carried out at the enterprises of the closed ground of the region by the method of questioning, the objects of the study were 125 women aged 27-45 years. In most cases, there are violations of the adaptive capabilities of the organism among the studied workers of greenhouse farms, and even a breakdown in adaptation was revealed in 0.8%. In less than half of the cases, the adaptive potential of the greenhouses was within the normal. The adaptive reserves of the greenhouses workers decrease with age.


2019 ◽  
Vol 98 (10) ◽  
pp. 1129-1134 ◽  
Author(s):  
E. A. Tkachuk ◽  
N. V. Efimova ◽  
Inna V. Myl’nikova

Introduction. Changes in the education system have an impact on the health of schoolchildren. Purpose. To study the dependence of the adaptive capacity of schoolchildren studying in schools of various types on the intensity of educational work. Material and methods. The adaptive abilities of the organism of children (aged 7-17 years) were studied in conditions of different intensity of the educational process. There were surveyed 472 cases from traditional schools, 482 people - from specialized schools. We evaluated the statistical significance of the differences in quantitative (Student t-test) and qualitative traits (χ2). The relationship was studied using the Spearman correlation coefficient. Results. The intensity of educational work accounted for 3.6-3.8 points in 52 ± 2.4% of students in specialized type; 1.6-3.5 - in traditional schools. Intellectual loading is the most sensitive index when training in programs with a specialized study of subjects. The adaptive potential of students of specialized schools in a state of functional stress in the lower grades is found by 1.8 times (p < 0.002), on average - 2.2 times (p < 0.001), more often than in traditional schools. However, the proportion of children with functional stress in the upper grades does not differ (22-27%). A high direct correlation was found between the values of the adaptive potential and intellectual loads. Conclusion. Criteria for learning loads requiring a review of their volume in the curriculum of specialized schools are identified. The negative impact of school loads on the adaptive capabilities of a growing organism has been proven.


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