Russian Agricultural Academy

Saratov, Russia

Russian Agricultural Academy

Saratov, Russia
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Sereda A.D.,Russian Agricultural Academy | Nogina I.V.,Russian Agricultural Academy
Voprosy Virusologii | Year: 2011

Immunosuppression manifesting itself as leukopenia and a considerably lower lymphocyte proliferative response to T- and B-cell mitogens develops in pigs and dogs within 2-3 weeks after intramuscular or oral infection with canine distemper virus (CDV). CDV antigens are detectable in the oral secretions of the animals within 2-2.5 week after infection.

Litovchenko N.N.,Russian Agricultural Academy
Welding International | Year: 2016

The currently available electric arc metallising guns (EAG) contain two electrodes – wires. The operation of the classic EAG system depends completely on synchronisation and the speed of movement of the electrode wires and their accurate mutual spatial position at the exit from the guide tips. These shortcomings are not found in the three-electrode EAG. © 2016 Taylor & Francis

Prikhod'ko V.E.,Russian Academy of Sciences | Cheverdin Y.I.,Russian Agricultural Academy | Titova T.V.,Russian Agricultural Academy
Eurasian Soil Science | Year: 2013

The soils of the Kamennaya Steppe (Voronezh oblast) were studied. The rate of changes in the contents of Corg and the particular forms of organic matter (labile, microbial, and stable) were revealed in the quasi-natural soils of the fallows and shelterbelt and in the arable soils (rainfed farming for 12, 55, 85, and 115 yrs and irrigated farming for 40 yrs) of different positions on the watersheds and slopes. The effect of the increased soil moistening in the recent decades was also studied. In the upper 50 cm of the fallow soils that were not plowed since 1882, the relative Corg accumulation in the recent 30 yrs has amounted to 5%. The soils of the shelterbelt planted in 1903 were similar to the fallow soils. As compared to the soil of the unmown fallow, the Corg loss from the 1-m soil layer under the shelterbelt and the 12-year-old cropland were less than 9%; the losses from the plowed soils (used for 55-115 yrs) were 21-27% on the watersheds and 37-46% on the slopes. In the first decade, the rate of the Corg losses in the 0- to 20-cm layer of the cultivated chernozem was 120 g C/m2. With the increasing duration of the soil plowing (from 55 to 115 yrs), the Corg losses decreased from 45 to 28 g C/m2 per yr in the watershed soils and from 51 to 35 g C/m2 per yr in the soils on the slopes. The maximum loss of Corg was found for the soils on slopes, waterlogged soils, and irrigated soils. In the slope soils, the Corg loss due to erosion was 9-18% of the total. In the upper horizons of the old agrogenic soils, compared to the soil of the unmown fallow, the Cha/Cfa increased, since the content of fulvic acids (FA) faster decreased than that of the humic acids (HA); the C content of the nonhydrolyzable residue was reduced. The slope and waterlogged soils differed from the watershed soils in the smaller amounts of HA and FA and in the greater content of humin carbon. In the 0- to 20-cm layer of the soils studied, the rate of the basal respiration (BR) was 0.2-0.5 μg C/g soil per h, the content of the microbial biomass (Cmicr) was 326-1073 μg C/g, and the share of Cmicr amounted to 1.0-1.9%. These values were minimal in the irrigated soil and maximal in the fallow ones. A high correlation coefficient (r = 0.88-0.92) was found between the Cmicr content and the BR, between the contents of Corg and HA, and between the contents of Corg and mobile C. The correlation coefficient between the contents of Corg and FA and Corg and humin C was 0.67. © 2013 Pleiades Publishing, Ltd.

Bokina I.G.,Russian Agricultural Academy
Zoologicheskii Zhurnal | Year: 2013

The data on the species composition and biological features of nabids in agrocenoses (winter rye, spring wheat, and oats) and the influence of agrotechnical methods (the main treatment of soil, application of chemicals, and preceding crops) on their number are presented.

A list of species of terrestrial mollusks for an open space of the Siberian Botanical Garden (Tomsk State University) was made for the first time. The list includes 17 species; among them are four European species: Oxychilus translucidus, Deroceras reticulatum, Boettgerilla pallens, and Arion fasciatus. Some part of the European species was moved to the open space from greenhouses of the Siberian Botanical Garden. A.fasciatus has been acclimatized most successfully. Lindholmomneme altaica was found in the territory of Tomsk for the first time.

Yembaturova E.Y.,Moscow State University | Korchagina A.V.,Russian Agricultural Academy
Acta Horticulturae | Year: 2011

The genus Lilium L. is important in the world flower market and morphological characters among species have been investigated. No comprehensive study of stem and leaf anatomy in wild species and hybrid cultivars has been done to date. Thus, the aim of study was twofold-to search for traits of diagnostic value for taxonomic purposes, as well as features to be practically utilized for improving the quality of Lilium-based horticultural hybrids for production as cut flowers and garden ornamentals. Stem and leaf anatomy in Lilium species of high ornamental value was studied using traditional anatomical techniques. The plants for study were grown outdoors and in protected cultivation (forcing) and sampled three times during the season. Morphological and anatomical traits and patterns in the structure of epidermal cells and cortex, thickness of supporting tissue, vascular bundles structure and location are discussed in regards to their diagnostic value and possible practical implementation. The presence of angular collenchyma in the cortex of Lilium ×elegans T.S. Ware, Asiatic hybrids was reported for the first time. The difference in anatomical structure between wild species and hybrids was noted. Anatomical features of diagnostic value, such as epidermal cell structure, vascular bundle and bundle sheath structure are an enriching addition to the most recent taxonomic treatments of the genus.

Bokina I.G.,Russian Agricultural Academy
Entomological Review | Year: 2015

The data on the species composition and biological features of nabid bugs in agrocenoses (winter rye, spring wheat, and oats) and the influence of agrotechnical methods (the basic soil treatment, application of chemicals, and preceding crops) on their abundance are presented. © 2015, Pleiades Publishing, Inc.

Dolganova Z.V.,Russian Agricultural Academy
Russian Journal of Genetics: Applied Research | Year: 2014

Japanese varieties of Iris ensata Thunb. were imported to Russia for more than 100 years ago by several scientists (E. Regel, N.I. Vavilov, V.M. Nosilov, V.T. Palvelyev), and in the 1980s these varieties were tested in the Central Botanical Garden of the Russian Academy of Sciences (RAS) and in most cases, they failed (Rodionenko, 2002; Mironova, 2008). The first varieties were developed by G.I. Rodionenko. Japanese varieties were successfully introduced under forest-steppe conditions of the Altai Krai at the Lisavenko RI of Horticulture for Siberia (RIHS), and then breeding was conducted with the participation of retro varieties developed in 1980–1982. The crossing of geographically distant varieties, first, French, and Japanese, and then, Altai, Far Eastern, Leningrad, and American, brought about 150 adapted ornamental genotypes and 15 I. ensata varieties. In the progeny of varieties with simple flowers, genotypes with double and half-double flowers were selected, and in the progeny of the last ones, a fertile genotype with 12 perianth segments. The pollen quality of the selected I. ensata genotypes was nearly as good as in the Altai species I. ruthenica and I. glaucenscens: pollen fertility was 78%, and viability, 53%. The fruit formation of cultivars with simple flowers was 54%, with double, 9%, and with forced crossing 93 and 73%, respectively. The fruit contained 5-116 seeds; their weight was 6–9 g; and germinative capacity 1–57%. Seedlings of 3–20% of plants from a group came to flowering in 3–5 years. Eight donors with high productivity, new colour, and flower shape were selected. During breeding, flower diameter increased from 12 to 20 cm; the width of the upper perianth segments, from 2 to 8 cm; and the width of the lower perianth segments, from 7 to 9 cm. The range of flower coloring extended to 11 groups. © 2014, Pleiades Publishing, Ltd.

Belyakova N.A.,Russian Agricultural Academy
Zoologicheskii Zhurnal | Year: 2012

On the basis of the materials collected in Irkutsk region in 2009-2010, the phenotypic composition of the Baikal population of the lady beetle, Harmonia axyridis (Pallas 1773), is analyzed. A significant microgeograpnical variation of this composition was revealed on the Baikal coast and in the city of Irkutsk. On the background of the widespread axyridis morph (80-90%), in some samplings, an elevated frequency (43-59%) of the light-colored succinea morphs were found. Some individuals are provided with a ridge on the elytra, and their frequency in the Baikal population is low (4-6%). The increase in the number of the morph succinea in the Irkutsk region is not associated with the hybridization between the populations from the Far East and Siberia.

Sereda A.D.,Russian Agricultural Academy | Balyshev V.M.,Russian Agricultural Academy
Voprosy Virusologii | Year: 2011

Data on the seroimmunotypic and hemadsorbing characteristics of African swine fever virus (ASF) are summarized. According to the results of immunological sampling in pigs and those of hemagglutination inhibition test, the known ASFV strains and isolates were divided into 11 groups, 8 were characterized as seroimmunogroups having their specific reference strains. A 110-140-kD ASFV serotype-specific nonstructural major glycoprotein was identified. It is suggested that it is the glycoprotein that corresponds to the genetic engineering detected virus- specific homolog of lymphocyte membrane protein CD2, gene deletion of which results in the loss of hemadsorbing properties by ASFV.

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