scholarly journals Variability of the period between germination and heading in spring barley accessions from Dagestan

2020 ◽  
Vol 181 (1) ◽  
pp. 24-29
Author(s):  
I. A. Zveinek ◽  
R. A. Abdullaev ◽  
B. A. Batasheva ◽  
E. E. Radchenko
Keyword(s):  
Spring Barley ◽  
Development Rate ◽  
Climate Conditions ◽  
North West ◽  
Norm Of Reaction ◽  
The North ◽  
The Republic ◽  
Spring Sowing ◽  
Main Factor ◽  
Plant Forms

Background. The genetic variability of the period between the germination and heading phases was analyzed in barley accessions from the Republic of Dagestan planted in the southern area of Dagestan (Derbent) and the Northwest of Russia (Pushkin, St. Petersburg). Testing barley development rates under contrasting climate conditions of Russia makes it possible to assess the paratypic variability and a norm of reaction in the tested accessions in order to identify environmentally adaptable plant forms useful for breeding.Materials and methods. Under spring sowing, 173 spring barley accessions were studied for the duration of the period from germination to heading. To compare the earliness of accessions planted at two sites with different sowing schedules, “the rate by which the germination-to-heading period of an accession exceeded its minimum value across the sample” was used as a criterion for calculations.Results and conclusions. Accession k-15013 was the earliest at both test sites during two years of studying. In Dagestan, accessions k-11439 and k-11475 with a low norm of reaction in 2016 and 2017 were also identified as early. Environmental conditions were found to have a significant effect on the development rate of barley accessions in Derbent and St. Petersburg. Dagestani barleys in the North-west of Russia ripened earlier than in the south of Dagestan during all the years of study. Vernalization temperatures proved to be the main factor affecting maturation schedules of local Dagestani barleys in the area of their distribution. A longer day and the absence of high temperatures in St. Petersburg contributed to the earliness of barley accessions.

scholarly journals Agriculture and land use in the North of Russia: Case study of Karelia and Yakutia

2020 ◽  
Vol 12 (1) ◽  
pp. 1497-1511
Author(s):  
Alexey Naumov ◽  
Varvara Akimova ◽  
Daria Sidorova ◽  
Mikhail Topnikov
Keyword(s):  
Land Use ◽  
Agricultural Development ◽  
Agricultural Land ◽  
Geographical Location ◽  
Special Role ◽  
Sources Of Information ◽  
Local Conditions ◽  
Climate Conditions ◽  
The North ◽  
The Republic

AbstractDespite harsh climate, agriculture on the northern margins of Russia still remains the backbone of food security. Historically, in both regions studied in this article – the Republic of Karelia and the Republic of Sakha (Yakutia) – agricultural activities as dairy farming and even cropping were well adapted to local conditions including traditional activities such as horse breeding typical for Yakutia. Using three different sources of information – official statistics, expert interviews, and field observations – allowed us to draw a conclusion that there are both similarities and differences in agricultural development and land use of these two studied regions. The differences arise from agro-climate conditions, settlement history, specialization, and spatial pattern of economy. In both regions, farming is concentrated within the areas with most suitable natural conditions. Yet, even there, agricultural land use is shrinking, especially in Karelia. Both regions are prone to being affected by seasonality, but vary in the degree of its influence. Geographical location plays special role, and weaknesses caused by remoteness to some extent become advantage as in Yakutia. Proximity effect is controversial. In Karelia, impact of neighboring Finland is insignificant compared with the nearby second Russian city – Saint Petersburg.

scholarly journals Psychiatry in Ireland

2009 ◽  
Vol 6 (2) ◽  
pp. 36-38 ◽  
Author(s):  
Zahid Latif
Keyword(s):  
Northern Ireland ◽  
European Economic Community ◽  
Total Population ◽  
Economic Community ◽  
Republic Of Ireland ◽  
North West ◽  
North East ◽  
The North ◽  
The United Kingdom ◽  
The Republic

Ireland is the third largest island in Europe and the twentieth largest island in the world, with an area of 86 576 km2; it has a total population of slightly under 6 million. It lies to the north-west of continental Europe and to the west of Great Britain. The Republic of Ireland covers five-sixths of the island; Northern Ireland, which is part of the United Kingdom, is in the north-east. Twenty-six of the 32 counties are in the Republic of Ireland, which has a population of 4.2 million, and its capital is Dublin. The other six counties are in Northern Ireland, which has a population of 1.75 million, and its capital is Belfast. In 1973 both parts of Ireland joined the European Economic Community. This article looks at psychiatry in the Republic of Ireland.

scholarly journals Ecological-taxonomic analysis of the petrophyte flora of Ikhrek (Rutulsky district) surroundings of Republic of Dagestan

2016 ◽  
Vol 5 (4) ◽  
pp. 70-73
Author(s):  
Agarza Medzhidovich Khalidov
Keyword(s):  
Rocky Mountains ◽  
Genetic Relationships ◽  
Taxonomic Composition ◽  
Environmental Groups ◽  
North West ◽  
Taxonomic Analysis ◽  
The North ◽  
History Of ◽  
The Republic ◽  
Mountain Country

The study of petrophytes, as a peculiar group of plants, is important for understanding the history of the flora and nature in general. Their ecological characteristics, taxonomic composition, geographic and genetic relationships and other characteristics carry information about the stages of development of the mountain country and its flora. Rutulsky district is a part of Highland Dagestan and borders on the Republic of Azerbaijan in the South, Akhtynsky and Kurakhsky districts in the East, Tlyaratinsky and Charodinsky districts in the North-West, Kulinsky, Agulsky and Laksky districts of the Republic of Dagestan in the North. The relief of Highland Dagestan, which is the area of our research, is characterized by a large slope, stony and rocky mountains. The following paper contains taxonomic, biomorphic, ecological analyses of petrophyte complexes of the studied area and an analysis of endemism and relict flora of petrophytic complexes. Herbarium material has helped to find the dominant family, genera and species of petrophyte complexes of the area. Biomorphic and environmental groups of petrophyte complexes have been studied. Confinement of petrophytes to different environmental conditions has been established. Endemic, relict and protected species of petrophyte complexes have been identified.

scholarly journals ECOLOGICAL - PHYSIOLOGICAL CHARACTERISTICS OF FODDER PLANTS USED TO PREVENT DESERTIFICATION IN THE CHUST-PAP ADYRS OF THE FERGHANA VALLEY

2020 ◽  
Vol 5 (6(75)) ◽  
pp. 4-11
Author(s):  
Otabek Normirzoyevich Imomov ◽  
Turakhon Uzakovna Rakhimova ◽  
Saidmakhmud Mirzaev
Keyword(s):  
Scientific Basis ◽  
Anthropogenic Influences ◽  
Natural Ecosystems ◽  
North West ◽  
The Past ◽  
The North ◽  
Fodder Plants ◽  
Ferghana Valley ◽  
The Republic ◽  
Local Plants

Adyrs of Chust-Pap, located in the north-west of the Ferghana Valley of the Republic of Uzbekistan, the process of desertification due to anthropogenic influences has been observed over the past 35-40 years. This process was confirmed by scientists, and evidence was provided. The aim of this study was to analyze the threeyear data on the parameters of the water regime in the conditions of rainfed cultivation of such local plants as Salsola orientalis S. G. Gmel., Kochia prostrata (L) Schrad. subsp. grisea prat. Subsp. nov., Krascheninnikovia ewersmanniana (Stschegl. ex Losinsk.) Grubov., Artemisia sogdiana Bge., used in the restoration of plant communities. A scientific basis has been created for the propagation of species to prevent desertification, that adapted to the region and common in natural ecosystems.

Non-Arctic Countries of Asia and Russia

2019 ◽  
pp. 185-206
Author(s):  
Mikail Khudzhatov
Keyword(s):  
Raw Materials ◽  
Mineral Resources ◽  
The Arctic ◽  
Investment Activity ◽  
Climate Conditions ◽  
Significant Potential ◽  
The North ◽  
Advanced Technologies ◽  
Critical Problems ◽  
The Republic

The Arctic is characterized by a significant potential in terms of mineral resources, raw materials, hydrocarbons, and energy. In the North, mining and extractive industries are booming, but the expansion of exploration in the severe climate conditions requires the use of advanced technologies, many of which have not been developed and adopted in Russia. For this reason, there is a need to promote investment activity in the Arctic. This chapter discusses the most effective customs instruments for the attraction of foreign investments, identifies critical problems in the sphere of development of investment collaboration between Russia and non-Arctic countries of Asia (China, Japan, and the Republic of Korea), and offers practical solutions in the field of investment collaboration in the High North.

scholarly journals Persians-Khurramites in the Byzantine Military Service During 833–839/840: Military Rank and Functions of Persian Military Units

2021 ◽  
pp. 211-221
Author(s):  
Evgeniy Mekhamadiev
Keyword(s):  
Military Service ◽  
Event History ◽  
Chronological Order ◽  
North West ◽  
The North ◽  
Military Campaigns ◽  
The Republic ◽  
East Azerbaijan ◽  
Military Rank ◽  
Military Units

Introduction. The scope of this paper is 1) to consider the forms of military service of the Persians within the Byzantine army during the first half of the 9th c., 2) to arrange the chronological order of events related to the involvement of the Persians in Byzantine military service as precisely as possible. The author means the Persians called Khurramites who were representatives of the anti-Islamic and anti-Arabic national movement at the north-west of Iran (territories of modern provinces of East Azerbaijan and Khamadan in the Republic of Iran). Methods. The author considers the single events (Byzantine military campaigns, in which the Persians took part, and also the facts of Persians’ arriving in Byzantium) in a more or less strict chronological order. The researcher turns to an analysis of event history and makes a step-by step, consecutive representation of the process of Persians’ arriving to Byzantine military service. The sources were works of Arabic, Armenian, Georgian and Greek authors (chroniclers, geographers, hagiographers) and seals (evidence of sigillography). Analysis. In 833/834 Byzantine Emperor Theophilos received a group of Persian refugees, who escaped from the Arabs and came to Byzantium. These Persians were headed by two chiefs, Theophobos and Naser, obviously, Naser was Theophobos’ father. Part of the Persians with Naser as a chief located in the Byzantine theme (a military-administrative and territorial district) of Anatolikoi, while another part subordinated to Theophobos located in the theme of Armeniakoi. In 837 Theophilos hosted another group of the Persians, who were commanded by Babek. Conclusions. The analysis shows that both in 833/834 and 837 Theophilos established regular military units of the Persians called thourmai, while Persian leaders mentioned above became Byzantine military officials, that are tourmarchoi, i.e. that were those Persian leaders who commanded over Persian ethnic tourmai. These ethnic units continued their existence up to the mid-10th c.

scholarly journals Influence of main tillage methods on barley yield in the Lower Volga region

2020 ◽  
pp. 43-47
Author(s):  
Dmitriy Pavlovich Polyakov ◽  
Andrey Vladimirovich Tyutyuma
Keyword(s):  
Field Experiments ◽  
Arid Zone ◽  
Spring Barley ◽  
Arable Land ◽  
Resource Saving ◽  
Forage Crops ◽  
Climate Conditions ◽  
The North ◽  
Harsh Climate ◽  
The Impact

Light-chestnut soils of the arid zone of the North of the Astrakhan region, even if all the standards of agricultural engineering are observed, are characterized by unfavorable agrochemical and water-physical properties for most crops. To successfully solve the problems associated with increasing adaptation of zonal agriculture to harsh climate conditions, it is necessary to search for new resource-saving technologies. The purpose of the work is to identify the impact of resource-saving methods of basic soil cultivation on the yield of spring barley in the semi-desert conditions of the North of the Astrakhan region. The organization of field experiments, observations and laboratory analyses were carried out according to the method of conducting field experiments Dospekhov B. A. and Guidelines for conducting field experiments with forage crops (research Institute of feed). The results of the conducted field experiments and laboratory studies give reason to speak about the feasibility of using a resource-saving soil-cultivating organ ROPA in the zone of unstable moisture in the North of the Astrakhan region. Loosening this unit contributes to an increase of 25% of the total spring stock of soil moisture. The introduction of this deep tillage (H=0.40-0.45 m) and tools for its implementation (ROPA) allows you to get in the rain-fed conditions of the arid zone of the North of the Astrakhan region from one hectare of arable land to 1.24 tons of barley Vakula and 1.30 tons of barley Ratnik.

scholarly journals SOURCES OF AGROBIOLOGICAL TRAITS FOR BREEDING SPRING BARLEY VARIETIES IN THE NORTH-WEST OF THE RUSSIAN FEDERATION

2016 ◽  
Vol 177 (3) ◽  
pp. 94-102
Author(s):  
N. V. Ivanova ◽  
◽  
A. V. Anisimova ◽  
T. N. Radyukevich ◽  
O. N. Kovaleva ◽  
...  
Keyword(s):  
Russian Federation ◽  
Spring Barley ◽  
North West ◽  
The North ◽  
The Russian Federation ◽  
Traits For Breeding

scholarly journals Forest opening with a secondary road network

2013 ◽  
pp. 25-38
Author(s):  
Milorad Danilovic ◽  
Darko Ljubojevic
Keyword(s):  
Road Network ◽  
Fish Bone ◽  
Point Of View ◽  
Maximum Slope ◽  
North West ◽  
The North ◽  
Secondary Network ◽  
The Republic ◽  
Sloping Terrain ◽  
Gps Devices

This paper presents the results of an analysis of the position and density of a secondary road network in the group-selection management system. The research was conducted in the economic unit Prosara in the north west of the Republic of Srpska. The network of skid roads in the analyzed sections was recorded using the GPS devices Garmin GPS 60 and Garmin Map 62st, and the analysis software package used was ESRI ArcInfo 10.1. Adhering to the general guidelines, the slope of skid roads was analyzed within six predefined intervals: 0-12 %, 12-16 %, 16-20 %, 20-30 %, 30-40 % and over 40%. Relative openness with a secondary road network was determined for a maximum distance between the skid roads of 130m and it ranged from 82.62 % to 96.37 %. Such openness was classified as very good and excellent. Together with all factors related to stand and terrain characteristics, it appears that in all the compartments, the density of the secondary network of skid roads is adequate for the application of a skidder with a winch, without extending above the maximum length of the winch rope. Out of the total length of analyzed skid roads, 24% is within an appropriate slope interval for a planned conversion to truck roads, whereas 37 % is the maximum slope from the ecological point of view. The average terrain slope for the whole analyzed area is 26.4%. Such moderately sloping terrain is suitable for the construction of skid roads with low investment and small environmental impact. Due to their specific configuration, the main skid roads were designed along the ridge, while the secondary and tertiary skid roads most often separated from them at the maximum slope, forming an irregular fish bone shape.

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