scholarly journals The investigation of biological and pomological indicators of apricot in the Nakhchivan Autonomous Republic

Author(s):  
O. R. Baghirov

According to the field expeditions, in the conditions of stationary and cameral laboratory investigations the genofund of apricot cultivated in Nakhchivan Autonomous Republic is defined. The biological features and pomological parameters are specified and the comparative analysis is carried out. As a result of the analysis, it became clear that among the apricot cultivars grown on the territory of the Nakhchivan Autonomous Republic, 42.9% are of local origin, 11.9% are introduced cultivars and 45.2% are forms. The distribution area of cultivars are determined and it is noted that Abutalibi, Haqverdi, Girmiziyanag, Aghchanabhat, Agh novreste, Khosropshahi, Teberze, Balyarim, Shalakh cultivars have much productivity importance and they widely cultivated in the region. During the conducted expeditions, it was revealed that apricot is mainly grown in the Ordubad district of the Autonomous Republic. It was defined that 30.5% of cultivars are early ripening, 47.8% of them are midseason ripening, 21.7% of them are late ripening; but 31.6% of forms are early, 42.1% of them are middle, 26.3% of them are late ripening. The research revealed that Nakhchivan novresti cultivar and Kotam-2, Dasta-4 forms are the most early ripening in comparison with other cultivars and forms. During the learning of the phase it was proved that the blossom period is depend on climate factors and ripening period is depending on genotype features. Weight the cultivars and forms is about 32.0-58.4 g and the pulp is between 90.0-95.8%. As a result of biological and zoological studies, 41.9% of cultivars and forms were distinguished by high values of these indicators. During the dequstation Nakhchivan novresti, Shalakh, Abutalibi, Balyarim, Agh erik, Goyjenabad, Girmizi partizan sorts and Jugha-5, Dasta-4, Dasta-9, Ordubad-12, Sharur-5 forms are rated with the highest scores.

Author(s):  
I. A. Kovaliova ◽  
L. V. Gerus ◽  
V. V. Scrypnyk ◽  
M.G. Fedorenko ◽  
O.V. Salii ◽  
...  

The aim of our research was to analyze the composition of an ampelographic collection of the V. Ye. Tairov Institute of Viticulture and Winemaking by geographical origin of varieties, application, ripening period, berry color, flavor profile, seed development, winter hardiness and frost tolerance, and resistance to major fungal diseases. To enrich the database of varieties – sources and donors of valuable traits via analysis of data on expression of adaptability and performance characteristics. Results and Discussion. At present, there are 736 varieties in the ampelographic collection of the V. Ye. Tairov Institute of Viticulture and Winemaking. The largest portion contains Ukrainian, Russian and Moldavian varieties. More than half (59 %) are table varieties; one third (31%) are wine ones; and 10 % are universal varieties and varieties that are still being studied. As to the ripening period, a group of early-ripening, mainly table varieties (23 %), stands out. The most numerous portions of the collection are mid- and late-ripening varieties (17 % each). The percentages of early-middle and mid-late varieties are similar (11 and 12 %, respectively). Among the berry colors, white and its variations (yellow, yellow-green, amber, etc.) account for 44 %; black – for 23 %; and pink – for 6 % of the collection accessions. There are varieties with red-violet, white-pink, yellow-pink, pale red or bright red berries. Significant diversity was also found in flavor characteristics of the collection accessions. Even in the largest group with so-called “simple taste” (86 % of the collection accessions), varieties with bright prune, solanum, flower, honey and other aromas were found. Varieties with muscat flavor remain in high demand on the market. It was found in 12.5 % of varieties, which can be used in further breeding process. The collection contains 7 % of seedless varieties. Among the collection accessions with their diverse genetic and geographical origin, 82 % have low winter hardiness and frost tolerance and are damaged even at –20 – 21oC. They are mainly European varieties without genetically determined mechanisms of protection against low temperatures and overwintering conditions. 17.9 % of the collection accessions vary from relatively frost tolerant (−22 – 24oC) to frost tolerant (−26–28oC). More than half of the collection accessions (64.5 % ) are susceptible to fungal diseases, since they derive from non-resistant varieties. They are mainly intraspecific Vitis vinifera L. varieties. They are used in crosses as donors of product quality characteristics. A third of varieties showed relative resistance to diseases (6–7 points on a 9-point scale (Bankovska, 2007)). They are widely used in further crosses to obtain genotypes with genetically determined disease resistance. Conclusions. The observations and analysis of adaptive and productive characteristics of 735 collection varieties of the V. Ye. Tairov Institute of Viticulture and Winemaking have resulted in enrichment of the database both with introduced and with our own valuable varieties - donors.


2021 ◽  
Vol 13 (5) ◽  
pp. 913
Author(s):  
Hua Liu ◽  
Xuejian Li ◽  
Fangjie Mao ◽  
Meng Zhang ◽  
Di’en Zhu ◽  
...  

The subtropical vegetation plays an important role in maintaining the structure and function of global ecosystems, and its contribution to the global carbon balance are receiving increasing attention. The fractional vegetation cover (FVC) as an important indicator for monitoring environment change, is widely used to analyze the spatiotemporal pattern of regional and even global vegetation. China is an important distribution area of subtropical vegetation. Therefore, we first used the dimidiate pixel model to extract the subtropical FVC of China during 2001–2018 based on MODIS land surface reflectance data, and then used the linear regression analysis and the variation coefficient to explore its spatiotemporal variations characteristics. Finally, the partial correlation analysis and the partial derivative model were used to analyze the influences and contributions of climate factors on FVC, respectively. The results showed that (1) the subtropical FVC had obvious spatiotemporal heterogeneity; the FVC high-coverage and medium-coverage zones were concentratedly and their combined area accounted for more than 70% of the total study area. (2) The interannual variation in the average subtropical FVC from 2001 to 2018 showed a significant growth trend. (3) In 76.28% of the study area, the regional FVC showed an increasing trend, and the remaining regional FVC showed a decreasing trend. However, the overall fluctuations in the FVC (increasing or decreasing) in the region were relatively stable. (4) The influences of climate factors to the FVC exhibited obvious spatial differences. More than half of all pixels exhibited the influence of the average annual minimum temperature and the annual precipitation had positive on FVC, while the average annual maximum temperature had negative on FVC. (5) The contributions of climate changes to FVC had obvious heterogeneity, and the average annual minimum temperature was the main contribution factor affecting the dynamic variations of FVC.


2019 ◽  
pp. 97-101
Author(s):  
Alla Polulyakh ◽  
Vladimir Volynkin ◽  
Magometsaigit Beibulatov

Знание фенологических особенностей сортов винограда важно для формирования промышленного конвейера столовых сортов винограда и в селекционной работе при создании сортов с заданным хозяйственными характеристиками. В результате анализа дат наступления основных фенологических фаз столовых сортов винограда V. v. orientalis Negr. в условиях ампелографической коллекции установлено, что согласно международному классификатору OIV по продолжительности продукционного периода изученные сорта разделяются на пять групп: сорта раннего, раннесреднего, среднего, среднепозднего и позднего сроков созревания. Продолжительность продукционного периода у столовых сортов V. v. orientalis Negr. раннего срока созревания составляет 115±4,4 - 121±1,6 дней, раннесреднего срока созревания 129 - 135±2,4 дней, среднего срока созревания 141±1,3 - 145±0,9 дней, сортов среднепозднего срока созревания 146 - 155±0,7 дней, сортов позднего срока созревания 156±0,5 - 165±2,0 дней.Understanding of the phenological peculiarities of grapevine cultivars is important for the formation of an industrial conveyor of table grapes and in breeding work when creating cultivars with pre-determined economic characteristics. Analysis of the onset dates of main phenological phases of table grapevine cultivars V. v. orientalis Negr. in the conditions of ampelographic collection revealed that, according to the OIV international classifier, the studied cultivars can be divided into five groups based on the length of production period: early, early-medium, medium, medium-late and late ripening. The length of production period of table cultivars V. v. orientalis Negr. of early ripening period is 115 ± 4.4 - 121 ± 1.6 days, that of early-medium ripening period is 129 - 135 ± 2.4 days, of medium ripening period is 141 ± 1.3 - 145 ± 0.9 days, for varieties of medium-late ripening period it is 146 - 155 ± 0.7 days, late ripening cultivars - 156 ± 0.5 - 165 ± 2.0 days.


2007 ◽  
Vol 7 (3) ◽  
pp. 32-42
Author(s):  
A.M. Ibrahimov

<p>The article presents the research of genus <em>Crataegus</em> L. diversity in the territory of the Nakhchivan Autonomous Republic. We provided comparative analysis of specimens from the herbarium of the Institute of Botany of Azerbaijan National Academy of Sciences, Institute of Bioresources of Nakhchivan Section of Azerbaijan National Academy of Sciences, and Nakhchivan State University to clarify the current state of the genus <em>Crataegus</em> L. in the flora of the Nakhichivan Autonomous Republic. Based on the analysis of field data and collected herbarium during 2004-2015 and literature data we revealed 22 species of the genus in the flora of the Nakhichevan Autonomous Republic at present time. We also fixed that some 17 wildgrowing species occur in natural conditions, among them <em>Crataegus chlorocarpa</em> Lenne et C. Koch, <em>C. ferganensis</em> Pojark., <em>C. sanguinea</em> Pall., <em>C. songarica</em> C. Koch, <em>C. turkestanica</em> Pojark. were introducted into the culture and used in the landscaping of parks and gardens. We also considered the data on synonyms species, patterns of distribution among high-altitude zones, habitats as well as period of flowering and fruiting.</p>


Author(s):  
Bublyk Ya. ◽  
Klymyshyn O.

The paper deals the complex research of the biota xylotrophic ascomycetous fungi of forest ecosystems of the the seven of natural reserve funds of Ukrainian Carpathians: NNP "Synevyr", Carpathian NNP, NNP " Hutsul’shchyna", Uzhansky NNP, NNP "Skolivski Beskydy" , and Carpathian Biosphere Reserve and Nature Reserve " Gorgany" is represented. A taxonomic composition and comparative analysis of ecological and biological features of the ascomycetous fungi is determined. In total 406 taxa 389 in the rank species were recordered for the investigated region. All found species representing 190 genera, 66 families, 26 orders, 10 subclasses, 6 classes, subphylum Pezizomycotina, that belong phylum Ascomycota, and also anamorphic fungi incertae sedis Pezizomycotina.


2021 ◽  
Vol 7 (4) ◽  
Author(s):  
T. Mammadov ◽  
A. Rasulova ◽  
S. Bagirova

In the research work has been comparatively analyzed the Hirkan dendroflora and have been collected herbariums of rare and endangered trees and shrubs. There are identified 26 families, 40 genera, 60 species of rare and endangered trees and shrubs naturally spreading areas, distribution of individuals in populations, have been performed tree-ring analysis on old samples. As a result of the observations have been determined, that in the Hirkan flora the majority of species in the areas have been diminished and decreased compared to previous years, many species are in danger of being disappeared. From this point of view by the monitorings of the area were studied threat criteria, the reasons of decline in plant varieties, those plants have been identified based on version of IUCN 3.1. In the research work have been processed out the protection measures, the biological features of species, the causes of change in natural resources.


2020 ◽  
Vol 28 (4) ◽  
pp. 445-454
Author(s):  
A. M. Ibrahimov ◽  
A. V. Matsyura ◽  
K. Jankowski

We clarified the current state of genus Crataegus L. in the flora of the Nakhchivan Autonomous Republic (Azerbaijan) using a comparative analysis of herbarium specimens from the Azarbaijan herbariums and data collected during the expeditions in 2004–2018. We succeed in adding some important data on the flora of Nakhchivan Autonomous Republic and Azerbaijan, we also enhanced the previous research with chromosome and morphological analysis. We identified 17 wild species of Crataegus genus in the Nakhchivan Autonomous Republic (C. pentagyna Waldst. et Kit. ex Willd., 1800, C. zangezura Pojark., 1939, C. orientalis Pall. ex Bieb., 1808, C. pojarkoviae Kossych, 1964, C. tournefortii Griseb., 1843, C. szovitsii Pojark., 1939, C. pontica C. Koch, 1853, C. meyeri Pojark., 1939, C. eriantha Pojark., 1939, C. atrosanguinea Pojark., 1939, C. caucasica C. Koch, 1853, C. pallasii Griseb., 1843, C. rhipidophylla Gand. (С. curvisepala Lindm.; C. kyrtostyla Pojark.) 1871, C. pseudoheterophylla Pojark., 1939, C. monogyna Jacq., 1775, C. x armena Pojark., 1939, and C. x cinovskisii Kassumova), which will contribute to five introduced cultural species used in the greenery. We also clarified the status of interserial and intersection hybrids using the chromosome and morphological analysis. The article includes the complete list of Crataegus L. species with information about synonyms of the species, patterns of distribution, habitat, latitude and elevation, flowering and fruiting phenology.


Author(s):  
Jun-Ming Zhang ◽  
Xiang-Yong Peng ◽  
Min-Li Song ◽  
Zhen-Jian Li ◽  
Xin-Qiao Xu ◽  
...  

Understanding the impacts and constraints of climate change on the potential geographic distribution of wild Akebia trifoliata is crucial for its sustainable management and economic development as a medicinal material or fruit. In this study, according to the first-hand information obtained on-the-spot investigation, the geographic distribution and response to climate factors of Akebia trifoliata were studied by the MaxEnt model and ArcGIS. The genetic diversity and population structure of 21 natural populations of Akebia trifoliata were studied by SSR markers. The results showed that precipitation and temperature were the two most important climatic factors that restrict the geographic distribution of Akebia trifoliata. Under the current climate scenario, the suitable growth regions of Akebia trifoliata in China were 91.7-121.9 °E and 21.6-37.5 °N. Combined with the evolutionary relationship and prediction results, 21 populations of Akebia trifoliata tended to migrate to the north. In the scenarios (SSP2-4.5, SSP3-7.0, and SSP5-8.5) of higher greenhouse gas emission concentration, the distribution area of Akebia trifoliata continued to expand, while in the low concentration greenhouse gas emission scenario (SSP1-2.6), the distribution area of Akebia trifoliata remained stable. The distribution center of Akebia trifoliata in China will shift to high latitude regions with the increase of temperature in the future. The results evaluated the impact of climate factors on the spatial distribution of wild Akebia trifoliata, displayed the possible changes of geographical distribution of Akebia trifoliata under different climate scenarios, and provided scientific evidence for durative protection and supervise of Akebia trifoliata.


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