scholarly journals Possibilities of Obtaining and Controlling Virus-Free Material in the Process of Selection and Seed Production of Main Crops

2021 ◽  
Vol 937 (3) ◽  
pp. 032108
Author(s):  
N Kakareka ◽  
Y Volkov ◽  
V Tolkach ◽  
M Sapotskyi ◽  
M Shchelkanov
Keyword(s):  
Seed Production ◽  
Apical Meristem ◽  
Russian Far East ◽  
Far East ◽  
Landscape Design ◽  
High Variability ◽  
Agricultural Crops ◽  
Stable Forms ◽  
Free Material ◽  
The Russian Far East

Abstract It is known that after being infected with phytoviruses plants do not recover. Breeding virus-resistant cultivars also does not give reliable results due to the high variability of pathogens and their diversity. And since it is impossible to obtain stable forms then one of the goals of protection a virus-free material and preventing its re-infection. To improve the health of vegetative propagated plant species, you can use the method of tissue culture of the apical meristem. In some cases true seeds can be healed by thermal or chemical treatment. The data on viruses infecting the main agricultural crops of the Russian Far East are presented; the features of their distribution and interaction with plants are described. Possible measures are given to prevent of phytoviruses spreading and re-infection of virus-free plants in the process of breeding and seed production, in gardening and landscape design.

Tax debt as a threat to the economic security of the Russian Far East

2020 ◽  
Vol 13 (2) ◽  
pp. 216-242
Author(s):  
V.A. Yakimova ◽  
A.A. Orekhova
Keyword(s):  
Russian Far East ◽  
Consumer Price Index ◽  
Far East ◽  
Federal District ◽  
Economic Security ◽  
Factors Affecting ◽  
Correlation And Regression Analysis ◽  
Debt Collection ◽  
Far Eastern ◽  
The Russian Far East

Subject. The article addresses the tax liabilities of taxpayers registered in the subjects of the Far Eastern Federal District, which should be paid to the consolidated budget of the Russian Federation, as well as the factors of the said debt growth. Objectives. Our aim is to assess the level of tax debt of regions of the Russian Far East and identify the correlation between the factors and the amount of tax debt. Methods. The study rests on methods of analysis, generalization, grouping, systematization, and the correlation and regression analysis. Results. We analyzed the level of tax debt for the entire Far Eastern Federal District and by region, identified factors affecting the growth of tax debt therein. The paper assesses the structure of tax debt by type of taxes and activity of debtors. The unveiled factors may help control changes in the size of tax debt in the Russian Far East and develop effective measures to improve the debt collection. Conclusions. The study shows that there is an increase in the tax debt in the regions of the Russian Far East, in the VAT in particular. The factor analysis revealed that the volume of sales of wholesale enterprises, investment in fixed capital, the consumer price index have the largest impact on the amount of tax debt.

New records and rare alien species in the flora of the Russian Far East

2018 ◽  
Vol 65 ◽  
pp. 89-102
Author(s):  
Z.V. Kozhevnikova ◽  
◽  
A.E. Kozhevnikov ◽  
Keyword(s):  
Alien Species ◽  
New Records ◽  
Russian Far East ◽  
Far East ◽  
The Russian Far East

New invasive species Acanthoscelides pallidipennis (Motschulsky, 1874) (Coleoptera: Bruchidae) in the fauna of the Russian Far East

2018 ◽  
Vol 360 ◽  
pp. 25-28 ◽  
Author(s):  
A.V. Kuprin ◽  
◽  
N.A. Kolyada ◽  
D.G. Kasatkin ◽  
◽  
...  
Keyword(s):  
Invasive Species ◽  
Russian Far East ◽  
Far East ◽  
The Russian Far East

ON CHROMOSOME NUMBERS IN THE GRASS FAMILY (POACEAE) IN RUSSIA, WITH SPECIAL ATTENTION TO THE FAR EAST

2020 ◽  
Vol 68 ◽  
pp. 29-64
Author(s):  
N.S. Probatova ◽  
Keyword(s):  
Chromosome Numbers ◽  
Russian Far East ◽  
Far East ◽  
Grass Species ◽  
Original Material ◽  
Mountain Regions ◽  
Grass Family ◽  
The Far East ◽  
The World ◽  
The Russian Far East

The paper summarizes information on chromosome numbers (CNs) of the Grass species (Poaceae) in the flora of Russian Federation, obtained on the original material, most part - from the Russian Far East (RFE). In some species the CNs are known in Russia or in the world only from RFE, in some – from one locality or few, or from one subregion of RFE. The grass species in RFE often occur in mountain regions and near seacoasts; some species are endemics, some were studied near the limits of their geographical distribution areas. The diversity of CNs, the special features of the CNs distribution in some grass groups are discussed. The alien species are abundant in RFE, and their CNs are also involved in the study. For karyologically polymorphous species further studies are needed.

Устойчивые сорта корнеплодов в муссонном климате юга Дальнего Востока России

2018 ◽  
Author(s):  
Y.G. Mikheev ◽  
I.A. Vanyushkina ◽  
V.I. Leunov
Keyword(s):  
High Resistance ◽  
Geographical Origin ◽  
Russian Far East ◽  
Far East ◽  
Source Material ◽  
The South ◽  
Root Crops ◽  
The Russian Far East ◽  
Resistance To Diseases

Представлены результаты изучения исходного материала столовой моркови и свеклы разного эколого-географического происхождения по устойчивости к патогенной флоре. Для условий Дальнего Востока созданы высокопродуктивные, устойчивые к патогенам сорта и гибриды столовых корнеплодов.The article presents the results of the study of the source material of table carrots and beets of different ecological and geographical origin for resistance to diseases. Geniuses for breeding of high-productive variety samples of root crops with rather high resistance to diseases in the conditions of the South of the Russian Far East are revealed.

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