scholarly journals Pear rust in the conditions of north-eastern Forest-Steppe of Ukraine

2019 ◽  
pp. 53-58
Author(s):  
V.I. Tatarynova ◽  
O.G. Zhatov ◽  
V.I. Trotsenko ◽  
A.O. Burdulanyuk ◽  
T.O. Rozhkova ◽  
...  
Keyword(s):  
Life Cycle ◽  
Weather Conditions ◽  
Forest Steppe ◽  
The North ◽  
North Eastern ◽  
Different Types ◽  
Pear Trees ◽  
Fruit Orchards ◽  
Almost All ◽  
Gymnosporangium Sabinae

Studies were conducted during 2017‒2019 based on the training laboratory of horticulture and viticulture of the Sumy National Agrarian University in the conditions of the North-Eastern Forest-Steppe of Ukraine. It was found that the pear was massively affected by rust. This is a fungal disease that was rarely found in fruit orchards of the North-Eastern Forest-Steppe of Ukraine. Rust infected pear trees very rarely in previous years. Only single spots were found on the leaves of the pear. Since 2015, the development of the disease has noticeably accelerated from year to year. There was a massive rust damage of the pear in the region in 2019. The prevalence of the disease reached 100 % in almost all varieties. Mostly the leaves were affected, not to a large extent the shoots of the pear. On the fruits of the external signs of the disease were not detected. During the years of research, weather conditions were optimal for the spread of fungal diseases. Only the aecial stage of the fungus was observed on the pear.  The aecial stage of the pathogen is the most harmful. Affected pear leaves fall prematurely. Studies were conducted on pear varieties Lymonka, Petrovska, Medova, Osinnia Yakovlieva, Chyzhovska, Noiabrska, Bere Desiatova, Uliublenytsia Klappa, which showed different degrees of rust damage. The disease manifested itself most significantly (5 points) on the varieties, Uliublenytsia Klappa and Bere Desiatova. Not one of the varieties did not show high resistance to the pathogen. The pear of the Chyzhovska variety was less affected, with a defeat score of 3 (18.8 %) in 2017 and 4 (32.3 % and 44.1 %) in 2018‒2019. It is known that the life cycle of the rust pathogen Gymnosporangium sabinae (Dicks.) G. Winter occurs on two plants: pear and juniper. The pathogen from juniper goes on the pear and vice versa. Pear trees do not become infected from each other. On the territory adjacent to the fruit garden of Sumy National Agrarian University, a survey of plantings of different types of juniper was conducted. There were no visible signs of the disease on the juniper. At the same time, pear trees were highly infected with the pathogen. Perhaps the spores of the fungus can spread far through air currents. But at the same time, possible changes in the life cycle of the pathogen in the conditions of this region. Clarification of this circumstance requires deeper further research.

scholarly journals Lichens of fruit trees in the selected locations in Podlaskie Voivodeship [North-Eastern Poland]

2017 ◽  
Vol 28 (4) ◽  
pp. 5-9 ◽  
Author(s):  
Anna Matwiejuk
Keyword(s):  
Fruit Trees ◽  
Lichen Species ◽  
Apple Trees ◽  
Partial Protection ◽  
Lichen Biota ◽  
North Eastern ◽  
Pear Trees ◽  
Fruit Orchards ◽  
Ramalina Farinacea

Abstract The aim of this paper is to present the diversity of the lichen species on fruit trees (Malus sp., Pyrus sp., Prunus sp. and Cerasus sp.) growing in orchards in selected villages and towns in the Podlaskie Voivodeship. Fifty-six species of lichens were found. These were dominated by common lichens found on the bark of trees growing in built-up areas with prevailing heliophilous and nitrophilous species of the genera Physcia and Phaeophyscia. A richer lichen biota is characteristic of apple trees (52 species) and pear trees (36). Lichens of the apple trees constitute 78% of the biota of this phorophyte growing in the fruit orchards in Poland. Of the recorded species, only two (Ramalina farinacea, Usnea hirta) are covered by partial protection in Poland.

United Front: Partisans of the Leningrad Region and their connections with the Central Asian Soviet Republics

2021 ◽  
Vol 2021 (02) ◽  
pp. 214-225
Author(s):  
Sergey Kulik ◽  
Аnatoliy Kashevarov ◽  
Zamira Ishankhodjaeva
Keyword(s):  
World War Ii ◽  
Weather Conditions ◽  
Leningrad Region ◽  
World War ◽  
North West ◽  
The North ◽  
Occupied Territory ◽  
Central Asian ◽  
The Difference ◽  
Almost All

During World War II, representatives of almost all the Soviet Republics fought in partisan detachments in the occupied territory of the Leningrad Region. Among them were many representatives of the Central Asian republics: Kazakhstan, Kyrgyzstan and Uzbekistan. Many Leningrad citizens, including relatives of partisans, had been evacuated to Central Asia by that time. However, representatives of Asian workers’ collectives came to meet with the partisans. The huge distance, the difference in cultures and even completely different weather conditions did not become an obstacle to those patriots-Turkestanis who joined the resistance forces in the North-West of Russia.

Ecology of Leuctra geniculata (Plecoptera: Leuctridae), an atlantomediterranean species on the north-eastern border of its area

Biologia ◽  
2008 ◽  
Vol 63 (4) ◽  
Author(s):  
Petr Pařil ◽  
Jindřiška Bojková ◽  
Jan Špaček ◽  
Jan Helešic
Keyword(s):  
Czech Republic ◽  
Life Cycle ◽  
Morphological Characters ◽  
The Czech Republic ◽  
Macroinvertebrate Assemblages ◽  
Ecological Preferences ◽  
The North ◽  
North Eastern ◽  
Ept Taxa ◽  
Eastern Border

AbstractThe first records of Leuctra geniculata Stephens, 1836 in the north-eastern border of its area (the Czech Republic) are presented and an overview of references, synonyms and distribution of the species is given. The ecological preferences of the species, supported by chemical and hydromorphological parameters, are defined. Probable dissemination paths into the Czech Republic and the supposed life cycle of the species are discussed. Photographs of morphological characters, SEM photos of eggs, associated macroinvertebrate assemblages (EPT taxa) and maps of distribution are included.

scholarly journals Development of the leaf area and the productivity structure of the sunflower hybrids in the north-eastern Forest-Steppe of Ukraine

2019 ◽  
pp. 33-39
Author(s):  
М.М. Sakhoshko ◽  
M.I. Kravchenko ◽  
V.M. Yatsenko ◽  
I.O. Kolosok
Keyword(s):  
Leaf Area ◽  
Field Experiments ◽  
Unit Area ◽  
Geographical Area ◽  
Main Element ◽  
Forest Steppe ◽  
Area Index ◽  
The North ◽  
North Eastern ◽  
Sunflower Crop

At the present stage, the model of leaf plant development is increasingly considered as the main element of genotypes adaptation to specific cultivation conditions, geographical area, etc. Under these conditions, the potential of the hybrid, the range of its adaptation to environmental conditions is determined by the level of interaction between the development of the assimilation apparatus and the generative organs. An urgent task aimed at improving the productivity of sunflower crop due to the use of genotypes adapted to the conditions of the north-eastern Forest-Steppe and Polyssya of Ukraine is to identify typical schemes of interaction of photosynthetic potential and parameters of plant productivity and crop yields. The studies were conducted in accordance with the program for the development of a variety model for the conditions of the north-eastern Forest-Steppe and Polyssya of Ukraine. Field experiments were carried out in 2016‒2019 at the Sumy National Agrarian University and the Institute of the Agriculture of North East of Ukraine. In the studies, 28‒56 hybrids of different originators were tested annually. Sunflower was cultivated according to the technology recommended for the area, with pre-harvesting density of 60 thousand plants / ha. Harvesting was done manually, from two central rows of a 4-rows plot. The results were processed using the Statistics package. The data on yield indices and values of leaf area coefficient (LAC) of crop for groups of varieties separated by the duration of growing season were analyzed. It was found that the increasing of leaf area was accompanied by an increasing of yield in case of comparing groups with dates of technological maturation until 20 August, 1 September and 10 September. In all cases, the maximum value of the leaf area index ranged from 3.12‒3.52 m2/m2. These dynamics of indicators indicated to the regulatory nature of the values of leaf area coefficient (LAC) of modern sunflower crop and the absence of genotypes (or conditions) capable of maintaining these values at the level of more than 3.3‒3.5 m2/m2. According to the analysis of correlation pleiades, the presence of several levels was found and the relative independence of the relationships between the group of parameters, determining the morphological structure of plants and the vertical structure of crop and the group of parameters, characterizing the content of chlorophyll and its concentration per unit area of leaf surface. In practical terms, the results of the analysis indicated the potential informative nature of the complex use of parameters characterizing the morpho-structure of plants, primarily the index of leaf area and the index of chlorophyll concentration per unit area. In order to isolate the typical schemes characteristic of different levels of adaptation to the conditions of the zone, data on 29 sunflower hybrids distributed in the region were clustered. The results of the analysis allowed to distinguish three significantly different algorithms for the realization of the vegetative and generative potential of sunflower hybrids in the area of the north-eastern Forest-Steppe of Ukraine. It has been established that one of the factors for successful realization of the generative potential of sunflower hybrids in the conditions of the zone is the ability to preserve and (in some cases) to improve the structure of relations between the dynamics and parameters of the plant leaf apparatus and the parameters of their generative development.

scholarly journals Constructive and geographical basis of the viticulture development in the North-Eastern foreststeppe region of Ukraine

2018 ◽  
Keyword(s):  
Growing Season ◽  
Theory And Practice ◽  
Forest Steppe ◽  
Successful Development ◽  
Study Region ◽  
The North ◽  
Commercial Cultivation ◽  
Steppe Region ◽  
North Eastern ◽  
The Individual

The article is devoted to constructive-geographical research of the bases of viticulture development in the North-Eastern foreststeppe region of Ukraine by conducting microclimatic and phenological observations, disclosing and substantiating their role in practical activities. The constructive and geographical approach has been used for solving the problem of distribution and commercial cultivation of grapes in Ukraine. This approach forms an important basis for the theory and practice of cultivation areas expansion of heat-loving crops, in particular grapes, atypical for the forest-steppe region. The paper reveals features of natural conditions of the North-Eastern forest-steppe region of Ukraine. Based on years of meteorological and phenological observations the possibility to develop viticulture in these conditions has been proved. Using the long-term observations data of the influence of the agrometeorological conditions on the course of the growing season and quality of grapes produces positive results. For the first time influence of weather types and microclimate characteristics of weather in the forest-steppe region on the individual phases of grapes development have been shown. New approaches have been applied to the study of grapes development phases and distribution of the sum of temperatures for each phase particularly. Ways of science-based weather and climate events forecasting have been improved in grapes cultivation and the importance of this when planning harvests. The author developed a forecast variation, projecting recommendations for the successful development of viticulture in Ukraine. The main results of phenological observations have been summarized; their combination with instrumental made it possible to study the processes of heat transfer during the growing season from early phases in stones development of such plants as apricot and cherry, which are the plants-indicators in the study region. The algorithm for determining yield of grapes in the North-Eastern forest-steppe region of Ukraine has been proposed. Forecast variations, projecting recommendations for the successful development of viticulture as well as general recommendations on cultivating this culture in the region have been developed.

scholarly journals OPTIMIZATION OF STANDING DENSITY OF SOY PLANTS DEPENDING ON THE SORT’S MATURITY GROUP OF THE VARIETY FOR THE CONDITIONS OF THE NORTH-EASTERN PART OF THE FORESTSTEPPE OF UKRAINE

2020 ◽  
Vol 2 ◽  
pp. 23-25
Author(s):  
Z. I. Hlupak
Keyword(s):  
Climatic Conditions ◽  
Forest Steppe ◽  
Maturity Group ◽  
Early Variety ◽  
Soybean Yield ◽  
The North ◽  
North Eastern ◽  
Early Ripening ◽  
Favorable Conditions ◽  
North Eastern Part

The aim of the article is to establish the optimal sowing density of soybean plants depending on the maturity group of the variety to obtain consistently high yields. For this purpose, new varieties of soybeans Siverka, Medison and Sihaliia were taken for research, which differ not only in the duration of vegetation, but also in morphological characteristics. The object of the research is the process of forming soybean yield depending on the variety and standing density. The subject of the research is the varieties: early-ripening Siverka from the Institure of Agriculture of the National Academy of Agrarian Sciences of Ukraine (NAAS), year of registration - 2013, plant growth type - intermediate; middle-early Medison from Hyland seeds: it has been in the Register of the varieties of Ukraine from 2008; type of growth - indeterminate; middle-ripening Sihaliia fro Dunai Agro, which was brought in the Register of the varieties of Ukraine in 2014, type of growth - indeterminate; seeding rates of 600, 700 and 800 thousand per ha; soybean grain yield. The forerunner in the experiments was winter wheat. Soil preparation consisted of stubble peeling and fallow plowing. Before sowing cultivation with harrowing was conducted. Sowing was carried out at a time when the soil at thr depth of 10 cm warms up to 100C in the usual row manner with a row spacing of 15 cm to the depth of 4-5 cm. Crops care laid in carring out preemergence and two post-emergence harrowings. Studies have shown that soybean yields depended on the variety and density of plants. Thus, on average over the years of research, the yield in the variety Siverka varied from 2.01 t per ha at a density of 800 thousand pieces per ha and decreased as it thickened to 2.26 t per ha at a density of 600 thousand pieces per ha. In the Medison variety, the yield ranged from 2.18 t per ha at a density of 600 thousand units per ha to 2.41 t per ha at a density of 700 thousand units per ha. In the Sihaliia variety, the yield varied from 2.28 t per ha at a density of 600 thousand pieces per ha to 2.50 t per ha at a density of 800 thousand pieces per ha. The maximum yield for the years of research (2.09-2.39 t per ha) the variety of Siverka formed at a density of 600 thousand pieces per ha. In the Medison variety the highest yield (2.31-2.52 t per ha) was obtained at a standing density of 700 thousand pieces per ha. The yield of the Sihaliia variety depended to a greater extent on the weather and climatic conditions of the year. Thus, under drier conditions in 2017, the highest yield of the variety (2.44 t per ha) was formed at a density of 700 thousand pieces per ha. Under more favorable conditions, the highest yield was obtained at a density of 800 thousand pieces per ha - 2.51-2.69 t per ha. Depending on the weather and climatic conditions of the years of research, the highest yields of all varieties were obtained under favorable conditions in 2019 - 2.27-2.56 t per ha. Under drier and cooler conditions in 2017, the yield of all varieties was lower by 0.13-0.41 t per ha. Thus, in the conditions of the north-eastern part of the forest-steppe of Ukraine, in order to obtain a high soybean yield, it is necessary to take a differentiated approach to the choice of the optimal standing density depending on the maturity group of the variety. Optimal conditions for the formation of maximum productivity of early-ripening soybean variety Siverka were created in the agrophytocenosis at densities of 600 thousand per ha, for medium-early variety Medison - 700 thousand per ha, and for medium-ripening variety Sihaliia - 700-800 thousand pieces per ha.

scholarly journals Comparison of ocean datasets by their ability to adequately reproduce winter anomalies in the characteristics of the upper layer ot the north–eastern part of the North Atlantic

2021 ◽  
pp. 137-146
Author(s):  
A.B. Polonsky ◽  
◽  
P.A. Sukhonos ◽  
Keyword(s):  
North Atlantic ◽  
Temperature Anomaly ◽  
Negative Temperature ◽  
Weather Conditions ◽  
Winter Period ◽  
Data Sets ◽  
Ocean Temperature ◽  
The North ◽  
North Eastern ◽  
Upper Mixed Layer

This article analyzes the reproducibility of the reemergence of temperature and upper mixed layer (UML) depth anomalies in the northeastern North Atlantic during severe weather conditions observed in the Atlantic-European region in the winter of 2009/2010 and 2010/2011. The data of re-analyzes ORA-S3, GFDL, GODAS, GLORYS2v4 and objective analyzes Ishii, EN4.1.1 are used. It is confirmed that the formation of the negative temperature anomaly in UML in winter 2010/2011 is largely due to the reemergence of the ocean temperature anomaly that occurred in the winter of 2009/2010. Interannual UML depth anomalies in the northeastern North Atlantic from the ORA-S3 and GODAS reanalysis datasets from March 2009 to November 2011 are in satisfactory agreement. The best description of the evolution of temperature anomalies in the 10–550 m layer in 2010, in accordance with the hypothesis of the reemergence of the ocean temperature anomaly, was obtained for the UML depth from the indicated data sets. An assessment of the statistical features of the case of the reemergence of anomalies in the UML characteristics at a significant level showed the occurrence of the UML depth anomaly in the winter of 2010/2011, formed in the last autumn-winter period. Moreover, such specific conditions could not have formed in the early 2000s.

scholarly journals Organisation of funerary areas and character of burial practices at Pohansko near Břeclav (based on a comparison of the cemetery around the second church and the dispersal burial grounds in the stronghold’s southern suburb)

2019 ◽  
Vol 72 (1-2) ◽  
pp. 46-61
Author(s):  
Renáta Přichystalová
Keyword(s):  
Local Community ◽  
The Other ◽  
Burial Practices ◽  
The North ◽  
Burial Customs ◽  
North Eastern ◽  
Different Types ◽  
Burial Rites ◽  
Burial Grounds ◽  
Selection Of

At the early medieval site Břeclav – Pohansko we can distinguish two different types of funerary areas: church cemeteries with clearly defined locus sacer and dispersed burial grounds in settlements, where the boundary between the living and funerary spaces is not clearly defined. The organisation of the area for funerary activities, the selection of the burial place and the homogeneity of applied burial rites in the above-mentioned two types of funerary areas were different. In order to find out how extensive this difference is, we chose several characteristics of funerary areas and compared them with one another. The key determinants were: the spatial structure of funerary areas, and the orientation and position of individuals buried in grave pits. As an example of a church cemetery we chose the cemetery around the second church in the North-Eastern Suburb of Pohansko. The Southern Suburb of the stronghold yielded data related to funerary areas dispersed in and between settlement structures. The comparison of selected characteristics of burial customs identified in the above-mentioned church cemetery and in dispersed cemeteries demonstrates that burials around churches were most probably organised and planned centrally and that the organisation and supervision of funerary activities might have been in the hands of the clergy. The burials in cemeteries within the settlement structure, on the other hand, were organised in accordance with customs of local community. The organisation and supervision of these funerary areas were most probably in the hands of persons approved and authorised by the community, maybe some significant community member, or the “Council of Elders” or pagan priests.

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