scholarly journals BIOLOGICAL JUSTIFICATION OF REDUCTION OF Y-VIRUS REINFECTION DURING REPRODUCTION OF SEED POTATO WITH A LOW DEGREE OF INFECTION

2020 ◽  
Vol 15 (3) ◽  
pp. 16-20
Author(s):  
Faniya Zamalieva
Keyword(s):  
Final Stage ◽  
Planting Density ◽  
Potato Seed ◽  
Seed Potatoes ◽  
Seed Material ◽  
Low Degree ◽  
Long Time ◽  
Vector Activity ◽  
Zero Values ◽  
The Republic

The studies were carried out with the aim of biological substantiation of a decrease in Y-virus reinfection during the reproduction of seed potatoes with a low degree of infection. The experiments were carried out in 2001-2006 in Laishevskiy district of the Republic of Tatarstan. In 2001-2003 and 2002-2004 the total vector activity of aphids for three years was 393 and 310 equivalent units, respectively, the degree of infestation at the final stage reached 45.8 and 20.8%. In 2003-2005 and 2004-2006 the total vector activity of aphids for three years was higher than in previous cycles by 2.0 ... 2.5 times (785 and 610 equivalent units, respectively), but the degree of infestation at the final stage was only 4.1% and 1, 7%. For the first time, a calculation formula was obtained and the distances between diseased potato plants were specified, depending on the degree of contamination of the seed material. With a planting density of 55 thousand plants/ha, the formula takes the following form: , where у is the distance between infected plants, meter; х is the degree of infection with the virus (х > 0), %. The relationship between the degree of planting infestation and the distance between diseased plants is inversely proportional, graphically it is a hyperbole. The dynamics of changes in the distance between infected plants was traced with a decrease in infection from 100% to close to zero values. It was revealed that the 1% level of infection is critical. With an increase in infestation from 1 to 100%, the distance between diseased plants decreases from 4.26 to 0.42 m, which is a small distance for winged aphids to overcome. A decrease in infestation from 1% to close to zero value may lead to an increase in the distance between diseased plants from 4.26 m to theoretically infinite. Seed material, with close to zero infection, is safe to reproduce for a long time without the risk of rapid reinfection, due to the significant distance for vectors between sources of infection and a decrease in the participation of most aphids in the transmission of viruses. The results obtained formed the basis for the potato seed-growing system and the technology for protecting seed potatoes from reinfection with the Y-virus in the conditions of the Republic of Tatarstan

scholarly journals Current trends in the development of potato breeding and seed production in Russia

2020 ◽  
pp. 22-26
Author(s):  
Е.А. Симаков ◽  
Б.В. Анисимов ◽  
С.В. Жевора ◽  
А.В. Митюшкин ◽  
А.А. Журавлев ◽  
...  
Keyword(s):  
Seed Production ◽  
Potato Seed ◽  
Economic Traits ◽  
Agricultural Enterprises ◽  
Seed Potatoes ◽  
Seed Material ◽  
Peasant Farm ◽  
The Creation ◽  
High Quality Seed ◽  
Intended Use

Для преодоления зависимости товаропроизводителей от импорта зарубежного семенного материала, удовлетворения возросших требований к потребительским и столовым качествам клубней сортов картофеля и структуре целевого использования урожая определены приоритетные направления совершенствования селекции и семеноводства картофеля на ближайшую и длительную перспективу. Представлены результаты целенаправленной селекции сортов картофеля нового поколения различных сроков созревания с конкретными параметрами хозяйственно полезных признаков, определяющих их целевое использование в соответствии с запросами отечественного рынка картофеля. Предложена система мер по развитию селекции и семеноводства картофеля, способствующая повышению эффективности создания и использования потенциала отечественных сортов, наращиванию объемов производства качественного семенного материала высоких посевных стандартов. Среди них: скрининг и постоянное обновление генофонда, формирование, пополнение и поддержание признаковых генетических коллекций, разработка системы генетических и молекулярных маркеров ценных хозяйственных признаков, развитие селекционных программ по созданию сортов с пигментированной окраской мякоти клубней, повышенным содержанием антиоксидантов и высокой питательной ценностью, разработка эффективных приемов и методов взращивания высококачественного семенного картофеля на основе созданиях исходного материала, свободного от вирусных, вироидных и бактериальных фитопатогенов, освоение адаптивных ресурсо- и энергоэкономичных технологий и схем семеноводства картофеля, средств защиты, машин и механизмов, обеспечивающих качество сортовых семян, формирование региональной сети учреждений РАН и агропредприятий по оригинальному семеноводству картофеля, выделение специальных семеноводческих территорий с наиболее чистыми фитосанитарными условиями и т.п. Это позволит ускорить переход сельхозпредприятий и крестьянских (фермерских) хозяйств на использование для посадки только сертифицированных семян не ниже 1-2 репродукций. To overcome the dependence of producers on imports of foreign seed material, to meet the increased requirements for the consumer and table qualities of potato tubers and the structure of the intended use of the crop, priority areas for improving the selection and seed production of potato in the near and long term have been identified. The results of purposeful selection of new generation potato varieties of different maturation periods with specific parameters of economically useful features that determine their intended use in accordance with the requirements of the domestic potato market are presented. The proposed system of measures on development of selection and seed potatoes, facilitate the creation and use of potential native varieties, increase production of quality seed material of high seed standards. Among them: screening and constant updating of the gene pool, formation, replenishment and maintenance genetic collections of traits, development of a system of genetic and molecular markers of valuable economic traits, development of selection programs for breeding cultivars with pigmented colour of tuber pulp, high content of antioxidants and high nutritional value, development of effective methods and methods for growing high-quality seed potatoes based on the creation of source material free from viral, viroid and bacterial phytopathogens, development of adaptive resource-and energy-efficient technologies and schemes for potato seed production, protective equipment, machines and mechanisms that ensure the quality of varietal seeds, formation of a regional network of RAS institutions and agricultural enterprises for original potato seed production, allocation of special seed-growing territories with the cleanest phytosanitary conditions. This will speed up the transition of agricultural enterprises and peasant (farm) farms to use only certified seeds for planting at least 1-2 reproductions.

Problems of potato seed in the Republic of Mordovia

2017 ◽  
Vol 1 (66) ◽  
pp. 102-105
Author(s):  
Aleksandr Erofeev ◽  
◽  
Vasily Kargin ◽  
Keyword(s):  
Potato Seed ◽  
The Republic

Determination of optimum tuber planting density in the potato varieties Pentland Squire, Cara, Estima, Maris Piper and King Edward

1992 ◽  
Vol 119 (1) ◽  
pp. 35-44 ◽  
Author(s):  
D. C. E. Wurr ◽  
J. R. Fellows ◽  
E. J. Allen
Keyword(s):  
Complex Analysis ◽  
Seed Tuber ◽  
Tuber Size ◽  
Planting Density ◽  
Potato Seed ◽  
Stem Density ◽  
Seed Tubers ◽  
Net Returns ◽  
Analysis Technique ◽  
The Cost

SummaryThirty-two experiments examining the effects of the weight and within-row spacing of potato seed tubers on graded tuber yields of five varieties were conducted on eight sites from 1980 to 1985. A complex analysis technique was used to combine these data and estimate the optimum tuber planting densities for different ratios of seed cost to small (40–60 mm) and large (60–80 mm) ware value. The same technique could be applied to any other combination of seed cost, ware size and ware value.The optimum tuber planting density decreased with increasing seed-tuber weight. Differences in optimum planting density between varieties were much greater with small (35 g) than with large (105 g) seed tubers and decreased as the cost of seed increased relative to the value of ware. As large ware became worth more than small ware the influence of increasing seed cost on the optimum density was reduced. As the value of large ware increased, net returns increased and the effect of seed cost on net returns was reduced. Mean tuber size decreased with increasing stem density at harvest and at the same stem density was lower in varieties producing more daughter tubers/stem. Changes of mean tuber size (μ) and the spread of yield across size grades (σ) with time were well described by parallel curves in different varieties. It is suggested that in future it may not be necessary to determine optimum tuber planting densities by complex experiments involving several seed-tuber weights and spacings. Instead μ and σ could be estimated from simple experiments and tuber spacings determined by comparison with control varieties.

scholarly journals COUNTERING TEMPORARY OCCUPATION: INTERNATIONAL ASPECT, FOREIGN EXPERIENCE, AND NATIONAL REALITIES

2021 ◽  
Vol 74 (1) ◽  
pp. 10-19
Author(s):  
Yaroslav Kushnir ◽  
Keyword(s):  
Turkish Republic ◽  
Sovereign State ◽  
State Regulations ◽  
Foreign Experience ◽  
Complex Concept ◽  
Northern Cyprus ◽  
Long Time ◽  
Occupied Territories ◽  
The Republic ◽  
Republic Of Cyprus

This article provides a comprehensive study in areas of counteraction to the temporarily occupied territories of a sovereign state. Regulations, doctrinal approaches, international experience serve as a subject to this study in the context of a set of functional national activities of states that have faced the issue of territories’ separation. Particular attention is paid to foreign experience in counteracting the temporary occupation through the prism of the Republic of Cyprus which held an activity to counter the so-called Turkish Republic of Northern Cyprus, as one of the most successful examples of confrontation with the temporarily occupied territories for a long time and comparing Ukraine's activities in this field. To this end, the author conducts a comprehensive analysis of measures aimed at combating the spread and recognition of the temporarily occupied territories of the Republic of Cyprus, as well as the scientific achievements of international scientists who have studied this issue. Analyzing these objects, the author carries out the qualification based on the criteria of differentiation of measures accepted by foreign scientists and determines which measures were implemented to solve the same problem in Ukraine. Given the personal experience of operational and service activities of the author and a deep awareness of this topic, it is proposed to expand the generally accepted areas of counteraction. The author provides the grounding of additional direction on how to counter the expansion and recognition of the Ukrainian temporarily occupied territories, disclosing a complex of measures which were, and can be introduced for its realization. The result of this study is the formation of the author's approach to defining the complex concept of «counteraction to temporary occupation», the formation of a list of national measures to combat the temporarily occupied territories, and their classification, as well as proposals for the most effective countermeasures and their further use in law enforcement.

scholarly journals To the 50th anniversary of hematology service of the Republic of Tatarstan

2018 ◽  
Vol 99 (5) ◽  
pp. 851-854
Author(s):  
A R Akhmadeev ◽  
M A Kunst ◽  
A V Kosterina ◽  
S N Terekhova ◽  
A A Gaybaryan ◽  
...  
Keyword(s):  
Abdominal Cavity ◽  
50Th Anniversary ◽  
Deficiency Anemia ◽  
Blood Picture ◽  
New Methods ◽  
The World ◽  
Long Time ◽  
B12 Deficiency ◽  
The Republic ◽  
Blood Elements

The article presents an overview of the development of hematology service in the Republic of Tatarstan. The well-known scientist Nikolay Konstantinovich Goryaev (1875-1943), who worked in Kazan for a long time, began to develop this direction and after passing an internship in Germany proposed an improved device for calculating the blood elements known throughout the world. Adherents of Professor Goryaev continued research in the field of hematology, a blood transfusion station was organized. Professor S.I. Sherman proposed new methods of diagnosis and treatment of B12 deficiency anemia. Professor Sh.I. Ratner studied the changes in the blood picture in diseases of the abdominal cavity. The first 15 specialized hematological beds were opened in 1968 in the hospital named “Old Clinic”. The physician who treated such patients was Rakhil Sholomovna Dashevskaya, PhD. At present, hematology service is provided by three hospitals in Kazan, hematological and therapeutical beds in Naberezhnye Chelny and Nizhnekamsk, outpatient hematology service in Zelenodolsk. In recent years, the introduction of stem cell therapy has begun, and modern combined methods of chemotherapy have been introduced.

scholarly journals Transformation Lebanon`s foreign policy vector 2011–2017 y.

2019 ◽  
Vol 21 (92) ◽  
pp. 186-189
Author(s):  
M. M. Dzera ◽  
R. Y. Pasichnyy ◽  
A. M. Ostapchuk
Keyword(s):  
Foreign Policy ◽  
Prime Minister ◽  
Democratic Regime ◽  
Political Arena ◽  
Islamic World ◽  
Conservative Nature ◽  
The World ◽  
Long Time ◽  
The Law ◽  
The Republic

The place and international position of Lebanon in the world political arena today is changing and transforming under the influence of globalization. Thus, this is not deprive, but changes the vector on the international arena and does not exclude the already acquired conservative character. Prime Minister Tamam Salam, who is the executive of the President of the Republic of Lebanon, is reforming and liberalizing the law and changing the vector of foreign policy. He doing this without leaving the traditions and religious views, also without rejecting the conservative nature of foreign and domestic policies. Although Lebanon is part of the League of Arab States, which is accused of non-democracies, it has a democratic regime for a long time. Balancing the policy of the Lebanese Republic between conservatism, traditionalism, democracy and liberalization makes Lebanon a great country for analysis, since it provides an opportunity to reflect the coexistence of democracy with the stereotyped vision of the “Islamic world”.

scholarly journals VIEWS OF VOJVODINIAN LEADERSHIP ON RE-OPENING THE ISSUE OF THE RELATIONSHIP BETWEEN SR SERBIA AND SAP VOJVODINA IN 1981

1970 ◽  
pp. 258-273 ◽  
Author(s):  
SLOBODAN BJELICA
Keyword(s):  
Federal Republic ◽  
Economic Crisis ◽  
Working Group ◽  
Socialist Republic ◽  
Economic Problems ◽  
Long Time ◽  
The Republic ◽  
Autonomous Province ◽  
The Relationship ◽  
Comprehensive Studies

In the early 1980s, after the death of the long-time President Josip Broz Tito, the Socialist Federal Republic of Yugoslavia slowly began to fall into a deep political and economic crisis. One of the most important aspects of this crisis was the crisis between the republic and the province, whose relationship was based on the 1974 Constitution. In terms of relations of the Socialist Republic of Serbia and the Socialist Autonomous Province of Vojvodina the degradation started 1981, when in the wake of the Albanian demonstrations (i.e. the counterrevolution in Kosovo), the republic leadership demanded a redefinition of the relations within Serbia, i.e. the change of the Constitution. Responding to the specific criticism from Belgrade, Vojvodinian leaders formed a working group which, in eight comprehensive studies, gave their view of the normative and economic problems of Serbia and Vojvodina.

scholarly journals Practice of Running Dyeing & Weaving Weekly in the Republic of China and Dissemination of Science and Technology

2021 ◽  
Vol 17 (6) ◽  
pp. 13
Author(s):  
Bochong Zhao ◽  
Kehui Deng
Keyword(s):  
Textile Industry ◽  
Positive Impact ◽  
Science And Technology ◽  
Modern Science ◽  
Modern China ◽  
Republic Of China ◽  
Long Time ◽  
Technology Dissemination ◽  
History Of ◽  
The Republic

Dyeing & Weaving Weekly (1935-1941) is a scientific and technological periodical which has been published for a long time and has never been interrupted in the field of textile in modern China. The journal publishes a large number of the latest achievements in textile science and technology, and is an important historical material and typical case for the study of modern science and technology dissemination. Rich in content, Dyeing & Weaving Weekly focuses on solving practical problems in the textile industry and guiding the direction of scientific research, which not only promotes the dissemination of textile science and technology but also contributes to the development of the textile industry. Therefore, from the perspective of science and technology communication and the history of newspapers and periodicals, this paper examines the practice and communication strategies of Dyeing & Textile Weekly, in order to prove that Dyeing & Textile Weekly has a positive impact on science and technology communication in modern China, and also provides experience reference for the development of contemporary science and technology periodicals in China, which has certain reference significance.

scholarly journals The Importance of Data: Developing Smart Asset Management Framework in IoT Era

2020 ◽  
Vol 1 (1) ◽  
pp. 21
Author(s):  
Marga Gumelar*
Keyword(s):  
Information Technology ◽  
Asset Management ◽  
Inventory System ◽  
Fiscal Year ◽  
Technology Infrastructure ◽  
Management Framework ◽  
Current Asset ◽  
Long Time ◽  
The Republic ◽  
Asset Inventory

Municipal assets become hard problems that lasted a long time. In the fiscal year 2015, from total asset amount of   Rp 2,048.88 trillion, the Audit Board of the Republic of Indonesia found some problems on the audit of the local government financial report that 1,010 issues were related to asset registration. There were also 48 problems related to unknown assets and potential losses of Rp 289,281.23 million. This paper aims to develop municipal asset management framework by focusing on asset inventory system through the application of information technology. A case study is presented based on the findings of the Audit Board of the Republic of Indonesia. The result is a practical asset inventory system framework   to   improve   current   asset   inventory  performance.   The   use   of information technology can support the improvement of municipal asset management. But the tools are not enough without collaboration with employees. Since some regions in Indonesia inadequately have information technology infrastructure facilities, such as internet access and electricity network, this framework has obvious limitation.

Electoral Distortion under STV Random Sampling Procedures

1986 ◽  
Vol 16 (2) ◽  
pp. 243-253 ◽  
Author(s):  
Michael Gallagher ◽  
A. R. Unwin
Keyword(s):  
Random Sampling ◽  
Social Choice Function ◽  
Electoral System ◽  
Approval Voting ◽  
Multi Stage ◽  
Low Degree ◽  
Degree Of Acceptance ◽  
The Republic ◽  
Sampling Procedures ◽  
The Impact

This Note will discuss the impact of random sampling at elections conducted under the single transferable vote (STV) electoral system in multi-member constituencies in the Republic of Ireland. STV, partly because of its popularity among electoral reformers, has received considerable theoretical scrutiny. It has been given an ‘intermediate’ rating in recent assessment of a number of electoral systems, and dismissed as a ‘perverse social choice function’ because it is subject to non-monotonicity. This shortcoming is also mainly responsible for the low degree of acceptance accorded to it by Brams and Fishburn. Nurmi concludes that STV (like other multi-stage systems) performs poorly, with regard to a number of criteria, in comparison with one-stage systems like approval voting. Black complains that STV ‘is a compound of minor complexities and is difficult to remember’. Others have discussed shortcomings in STV and suggested remedies which can be implemented where the counting of votes is entirely computerized.

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