scholarly journals The influence of some morphological parameters of the stem on the resistance to lodging of oat varieties and promising lines of the North-East FASC breeding

2021 ◽  
Vol 36 ◽  
pp. 01004
Author(s):  
Olga Zhuikova ◽  
Galina Batalova
Keyword(s):  
Climatic Factors ◽  
Morphological Characters ◽  
Stem Length ◽  
Morphological Parameters ◽  
Panicle Length ◽  
North East ◽  
The North ◽  
The Russian Federation ◽  
Stem Stability ◽  
Plant Length

Resistance to stem lodging depends on the year conditions. The agro-climatic factors of the north-east of the European territory of the Russian Federation are unstable in terms of precipitation and temperature. Most of all, oat lodges in wet years, which is associated with an increase in plant length. To study the main morphological characters, the linear parameters of the stem and the indices of resistance to lodging were measured. The distribution of varieties and lines by plant length allowed to analyze the stem morphological parameters for each group. The main contribution to the length of plants is made by the upper and second internodes. A smaller proportion is accounted for by the length of the lower internode. The dependence of the resistance to lodging was revealed with the panicle length. The thicknesses of the first and second internodes affected some elements of the productivity structure (panicle length, panicle mass, the mass of 1000 grains, etc.). The Galchenko index (JG) and the ratio of the stem length to the diameter of the second internode (Lc/d2) had higher values in varieties with higher resistance to lodging. Promising lines 325h12, 200h15, 196h15, 175h15, 175h15 and the Sapsan variety combined stem stability and yield.

THE NORMALIZED DIFFERENCE VEGETATION INDEX AS AN INDICATOR OF DYNAMICS

2021 ◽  
Author(s):  
Haddad Amar ◽  
Beldjazia Amina ◽  
Kadi Zahia ◽  
Redjaimia Lilia ◽  
Rached-Kanouni Malika
Keyword(s):  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Climatic Factors ◽  
Mediterranean Ecosystems ◽  
Point Of View ◽  
Aleppo Pine ◽  
Landsat 8 ◽  
North East ◽  
The North ◽  
Pine Trees

Mediterranean ecosystems are considered particularly sensitive to climate change. Any change in climatic factors affects the structure and functioning of these ecosystems and has an influence on plant productivity. The main objective of this work is to characterize one of the Mediterranean ecosystems; the Chettaba forest massif (located in the North-East of Algeria) from a vegetation point of view and their link with monthly variations using Landsat 8 satellite images from five different dates (June 25, 2017, July 27, 2017, August 28, 2017, October 15, 2017). The comparison of NDVI values in Aleppo pine trees was performed using analysis of variance and the use of Friedman's non-parametric test. The Mann-Kendall statistical method was applied to the monthly distribution of NDVI values to detect any trends in the data over the study period. The statistical results of NDVI of Aleppo pine trees indicate that the maximum value is recorded in the month of June, while the lowest values are observed in the month of August where the species studied is exposed to periods of thermal stress.

scholarly journals Density distributions and habitat associations of red kangaroos, Macropus rufus, and western grey kangaroos, M. fuliginosus

1991 ◽  
Vol 18 (4) ◽  
pp. 377 ◽  
Author(s):  
SC Cairns ◽  
AR Pople ◽  
GC Grigg
Keyword(s):  
Land Use ◽  
Density Distribution ◽  
Climatic Factors ◽  
Relative Effect ◽  
Habitat Associations ◽  
Secondary Importance ◽  
Density Distributions ◽  
North East ◽  
The North ◽  
Half Degree

Density distributions of red and western grey kangaroos in the South Australian pastoral zone were determined for the period 1978-86. The habitat associations of these kangaroos were analysed using the densities on half-degree blocks, and information on landform and soil type, land use and degradation, vegetation, and climate. Red kangaroos were found throughout the pastoral zone, the highest densities being in the north-east. Western grey kangaroos were restricted to the southern parts of the pastoral zone. Higher densities of red kangaroos were associated with pastoral land use, with brown calcareous and red duplex soils, and with areas dominated by low bluebush shrublands. They were not particularly closely associated with areas dominated by mulga. Habitat associations of red kangaroos were different in drought years compared to non-drought years. Changes in density distribution during drought appears to have been due to the patchiness of rainfall. The relative effect of the drought was greatest in the northern part of the pastoral zone. Outside this effect, recent rainfall was found to be of only secondary importance to the overall density distribution of red kangaroos. Climatic factors appeared to be the major determinants of the density distribution of western grey kangaroos. Low evaporation and relatively high rainfall characterised areas with high densities of western grey kangaroos. As was the case with red kangaroos, habitat heterogeneity appeared to be an important requirement of western grey kangaroos. Also, habitat associations were different in drought and non-drought years. Despite this, as was the case with red kangaroos, recent rainfall was only of secondary importance to the overall distribution of western grey kangaroos.

Influence of cereals in mixed crops on seed productivity of white clover Lugovik in the North-East of the Russian Federation

2020 ◽  
Author(s):  
Е. Kuzmin ◽  
Keyword(s):  
White Clover ◽  
Forage Production ◽  
Seed Productivity ◽  
North East ◽  
The North ◽  
Economically Valuable Traits ◽  
New Varieties ◽  
The Russian Federation ◽  
Second Year ◽  
Mixed Crops

creeping clover has been most widely used in meadow and pasture forage production in recent years. In recent years, more than 29 new varieties of meadow, hybrid, and creeping clover have been created with the most important ecological and biological characteristics and economically valuable traits. The article presents the results of studying the peculiarities of formation of seed herbage of white clover varieties Lugovik the second year of life, given the productivity of herbage and seed yield in variants of experience.

Cross-border cooperation between Russia and China: experience and problems

2020 ◽  
Vol 26 (9) ◽  
pp. 49-56
Author(s):  
V. Pecheritsa ◽  
◽  
S. Mefodyeva ◽  
Keyword(s):  
Russian Federation ◽  
Far East ◽  
Theoretical Research ◽  
Economic Relations ◽  
Cross Border ◽  
North East ◽  
The North ◽  
Logical Method ◽  
The Russian Federation ◽  
Cross Border Cooperation

The article is devoted to the analysis of Russian-Chinese relations at the present time.The topicality of the article is primarily due to the fact that the development of border and cross-border territories is becoming an important tool for successful international cooperation between countries. Under the circumstances, it is important to study and understand the functions and mechanisms of cross-border cooperation. The active development of the Russian Federation and China, including trade and economic relations, naturally leads to increased attention of these states to the development of border territories. The purpose and objectives of the article is to analyze the main directions of cross-border cooperation between the Russian Federation and China in the trade and economic sphere on the example of the Far East of Russia and the North-East of China; to show not only successes, but also unresolved issues and problems that prevent these neighboring regions from interacting at a higher level.The object of the study is the cross-border trade and economic cooperation between the Russian Federation and China. The subject is the ways, forms and mechanisms of regional Russian-Chinese interaction, as well as factors that slow down this process.There have been used general scientific empirical and theoretical research methods.The usage of a comparative-functional, systematic approach, modeling and a logical method encouragesto identify the essential and substantive elements of the regional trade and economic policy of the Russian Federation and China

scholarly journals To name but a few: descriptions of five new species of Terebellides (Annelida, Trichobranchidae) from the North East Atlantic

ZooKeys ◽  
2020 ◽  
Vol 992 ◽  
pp. 1-58
Author(s):  
Julio Parapar ◽  
María Capa ◽  
Arne Nygren ◽  
Juan Moreira
Keyword(s):  
Morphological Characters ◽  
Nominal Species ◽  
East Atlantic ◽  
Type Specimens ◽  
North East ◽  
The North ◽  
Putative Species ◽  
Different Types ◽  
Thoracic And Abdominal

The number of described species of the genus Terebellides Sars, 1835 (Annelida, Trichobranchidae) has greatly increased in the last years, particularly in the North East Atlantic. In this context, this paper deals with several putative species recently delineated by molecular means within a well delimited clade of Terebellides. Species are characterised here by a combination of morphological characters, and a complementary nucleotide diagnostic approach. Three species were identified as the nominal species T. stroemii Sars, 1835, T. bigeniculatus Parapar, Moreira & Helgason, 2011 and T. europaeaLavesque et al., 2019. Five species are described as new: T. bakkenisp. nov., T. kongsrudisp. nov., T. norvegicasp. nov., T. ronningaesp. nov. and T. scoticasp. nov. The distinctive morphological characters refer to the branchial shape, absence or presence of papillae on lamellae of anterior margin of branchial dorsal lobes, absence or presence of ciliated papillae dorsal to thoracic notopodia, geniculate chaetae in one or two chaetigers, and the morphology of thoracic and abdominal uncini teeth. Furthermore, the description of T. bigeniculatus is revised and complemented after examination of type specimens. An updated identification key to all species of the genus in NE Atlantic and a proposal of a classification of different types of abdominal uncini to be used in taxonomy are also included.

AGROENERGY AND ECONOMIC EFFICIENCY OF CREATION OF GRASS AND LEGUME-GRASS PASTURES IN THE NORTH-EAST OF THE NON-CHERNOZEM ZONE

2020 ◽  
Author(s):  
Maria Shchannikova ◽  
Dalhat Teberdiev
Keyword(s):  
Russian Federation ◽  
Initial Period ◽  
Economic Assessment ◽  
Total Expenditure ◽  
North East ◽  
The North ◽  
Fodder Production ◽  
The Russian Federation ◽  
Energy Coefficient ◽  
The Cost

In the article presents the agro-energy and economic assessment of the creation and use of grass and legume-grass herbages in the initial period of the organization of cultural pastures in the North-East of the Non-chernozem zone of the Russian Federation. Fodder production was 53–61 GJ/ha on grass pastures and 56–75 GJ/ha on legume-grass pastures. The total expenditure of anthropogenic energy was 43.1–46.8 GJ/ha on grass herbages and 23.4–25.0 GJ/ha on legume-grass herbages. The agro-energy coefficient on legume-grass herbages (239–300 %) was higher than on grass herbages (123–132 %). The cost of produced feed was 35.9–43.5 thousand rubles / ha on grass pastures and 39.8–54.5 thousand rubles/ha on legume-grass pastures. Total expenditures were 40.5–42.5 thousand rubles/ha on grass pastures and 30.2–32.5 thousand rubles/ha on legume-grass pastures. The cost of producing 100 fodder units legume-grass pastures was in 1.4–1.7 times lower than grass pastures ones.

Spaces of encounter: informal markets in Europe

2008 ◽  
Vol 12 (3-4) ◽  
pp. 347-357
Author(s):  
Peter Mörtenböck ◽  
Helge Mooshammer
Keyword(s):  
Large Scale ◽  
Economic Conditions ◽  
Informal Markets ◽  
World Congress ◽  
Long Distance ◽  
The Past ◽  
North East ◽  
The North ◽  
The Russian Federation ◽  
Vast Network

In the past two decades numerous large-scale informal markets have emerged on the fringes of European cities in the wake of global geopolitical transformations. Relying on individualised long-distance connections and adapting to diverse local situations, they produce a proliferating array of unregulated urban architectures while providing habitats for millions of undocumented existences. One such case is the infamous Arizona Market not far from the north Bosnian town of Brc̆ko, a place that has been transformed from a border guard post into a major hub for people trafficking and prostitution and now into a multi-ethnic centre of ubiquitous consumption. Another one, Izmailovo Market in the north-east of Moscow, the largest informal trading centre in the region with links to all parts of the Russian Federation and beyond, has grown into a Babylonian site of 15 specialised trading areas that rivals the Moscow Kremlin both in terms of size and visitor attractiveness. And when the 22nd World Congress of Architecture was held in Istanbul under the motto ‘Grand Bazaar of Architectures’, a bazaar of a very different kind traded outside the tourist centres: a vast network of provisional, informal street markets that establish themselves right alongside the building sites of official urban regeneration, beneath terraces of motorways and next to newly constructed tram lines. Before exploring the dynamics of these spaces in more detail, let us address briefly the socio-economic conditions underlying the rise of informal markets.

scholarly journals Mythological Xullyukuns in Beliefs of Yakuts (Sakha) (Expedition Materials)

2021 ◽  
pp. 467-477
Author(s):  
Yu. A. Sleptsov
Keyword(s):  
Indigenous Peoples ◽  
Russian Federation ◽  
Evil Demon ◽  
Aquatic Animals ◽  
North East ◽  
The North ◽  
The Russian Federation ◽  
Research Scientists ◽  
The Devil

Information about the mysterious supernatural water creature “xullyukun” is summarized in the article. It is emphasized that it takes its place in the pantheon of deities among the Yakuts (Sakha) — one of the indigenous peoples in the North-East of the Russian Federation. It is noted that Russian and foreign travelers, political exiles, and research scientists wrote about the traditions, life and religion of the Yakuts (Sakha) at different times. The descriptions of the beliefs of the Yakuts (Sakha) are given, in which there are references to the water creatures “xullyukuns”. The author has reviewed the literature where the “xullyukuns” are mentioned. The version proposed by scientists is analyzed, that “xullyukun” is a blending of the ancient spirit-master of water and an evil demon, which became possible due to the fact that this image correlated with the idea of the migration of aquatic animals from water to land and back. The author of the article is critical of such judgments. The data collected by the author of the article during numerous expeditions to the north-east of Yakutia, where the old image of the creature of the pre-Christian period has been preserved, is presented. On the basis of research, the author comes to the conclusion that the image of “xullyukun” is incomparable with the devil. It has been proved that “xullyukun”, according to ancient beliefs, is a creature — the arbiter of human destinies, and the new image is associated with Christmas divination, where the influence of Christianity is seen. The author of the article shares the original sources. Information collected in the field during conversations with informants is introduced into scientific circulation.

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