scholarly journals A database of weed plants in the European part of Russia

2020 ◽  
Vol 8 ◽  
Author(s):  
Alyona Tretyakova ◽  
Nickolay Grudanov ◽  
Pavel Kondratkov ◽  
Olga Baranova ◽  
Natalya Luneva ◽  
...  
Keyword(s):  
Species Diversity ◽  
Crop Protection ◽  
European Part ◽  
Perennial Grasses ◽  
Weed Species ◽  
Row Crops ◽  
Factors Affecting ◽  
Weed Plants ◽  
European Part Of Russia ◽  
Winter Crops

Weeds are plants that, although not specially cultivated, grow and often adapt to growing in arable lands. They form an ecological variant of flora, as a historically-formed set of species growing on cultivated soils. For the rational use of the chemical and biological crop protection products and to produce safe and high-quality food, up-to-date data on the floristic diversity of weeds and the patterns of its geographical change are required. The need for a weeds' database arises that allows many specialists to work together independently. However, the great value of any database lies not in its existence, but in the accumulation of data that can be used to analyse the factors affecting the species diversity of weeds. A dataset of weed species diversity and their distribution in the European part of Russia, based on the results of the authors' own research from 1999 to 2019, has been created. The dataset includes 24,284 observations of occurrences of weed plants, which were obtained on the basis of 2,049 relevés of segetal plant communities in seven regions of the European part of Russia. In total, the dataset includes information about 329 species of vascular plants growing in 65 farmlands: cereals, spring and winter crops, industrial crops, row crops and perennial grasses (Tretyakova et al. 2020).

scholarly journals Segetal flora of some regions of Russia: characteristics of the taxonomic structure

2020 ◽  
Vol 181 (2) ◽  
pp. 123-133 ◽  
Author(s):  
A. S. Tretyakova ◽  
O. G. Baranova ◽  
N. N. Luneva ◽  
T. A. Terekhina ◽  
S. M. Yamalov ◽  
...  
Keyword(s):  
Species Diversity ◽  
Perennial Grasses ◽  
Taxonomic Structure ◽  
Weed Species ◽  
European Part Of Russia ◽  
Weedy Species ◽  
Plant Families ◽  
Specific Species ◽  
Rostov Province ◽  
Segetal Flora

The authors’ data on the weed species composition in 8 geographic regions of the Russian Federation were laid at the basis of this survey. The segetal flora comprised weeds of cereals, root crops, and perennial grasses. The composition and taxonomic structure of weed species were analyzed. The total number of weedy plants encompassed 686 plant species. The level of regional weed species diversity was positively related to the area planted. Altai Territory, Udmurtia, and Rostov Province had the greatest weed species diversity, with more than 300 species, while Vologda Province had the lowest diversity (193 species). Most species-rich plant families (Asteraceae Dumort., Poaceae Barnhart, Fabaceae Lindl., Brassicaceae Burnet), genera (Potentila L., Artemisia L., Veronica L., Chenopodium L., Silene L., Trifolium L.), their subsequences, contributions of singlespecies families (17–39%) and genera (57–74%) were relatively stable systematic structure indicators. Only 18% of the species were common for all the regions. In each region there were region-specific groups of species. Weed species compositions in geographically close regions – the European part of Russia and the Urals – showed the greatest similarity. As for geographically distant regions (Altai Territory and Rostov Province), their weedy species compositions were distant and contained large groups of region-specific species.

Diversity of diatoms in soils of the northeast of the European part of Russia

2019 ◽  
pp. 127-130
Author(s):  
Irina V. Novakovskaya ◽  
Julia N. Shabalina ◽  
Angelina S. Stenina ◽  
Elena N. Patova
Keyword(s):  
Species Diversity ◽  
Original Data ◽  
European Part ◽  
European Russia ◽  
Frequency Of Occurrence ◽  
Tundra Soils ◽  
Nitzschia Palea ◽  
Subpolar Urals ◽  
Number Of Species ◽  
European Part Of Russia

This paper summarized the literature and original data about the species diversity of diatoms in the soils of the Northeastern European Russia. The list of species includes 142 species, from 2 classes, 13 orders, 25 families and 44 genera. Eunotia fallax, Nitzschia palea, Pinnularia borealis, P. subcapitata had a highest frequency of occurrence. The largest number of species found in the coastal ecotones of lakes in the valley of the river Vangyr and in mountain-tundra soils in the Subpolar Urals.

scholarly journals CEPHALOBID NEMATODES (NEMATODA: CEPHALOBIDAE) IN AGROCENOSIS OF THE CENTRAL-EUROPEAN PART OF RUSSIA

2020 ◽  
Author(s):  
R.V. Khusainov ◽  
Keyword(s):  
Species Diversity ◽  
European Part ◽  
Central European ◽  
The Family ◽  
European Part Of Russia ◽  
Frequency Of Occurence ◽  
First Time

Investigations of fauna of cephalobid nematodes from field agrocenosis were carried from the territory of the Central-European part of Russia in 2016–2018. In total ten genera of the family Cephalobidae were found. Nematodes of genus Acrolobus (A. emarginatus) has been reported in Russia for the first time. Chiloplacus and Eucephalobus nematodes were presented by the most species diversity. Nematodes of genera Cephalobus and Eucephalobus founded in the samples constantly (93 & 90% samples respectively). The second by frequency of occurence was taken species from genera Acrobeloides and Chiloplacus (86 & 75% samples). Acrobeles spp. and Cervidellus spp. detected in almost half of the soil samplies (57 & 48%). Acrolobus and Heterocephalobus nematodes were most rarely discovered genus (24 & 16%). Acroucrainicus and Stegelletina nematodes founded in agrocenosis singly and only in the territory of the Chernozem Region. Species of genera Acrolobus and Heterocephalobus were registered into the roots generally, while of the rest cephalobid genera were founded both in soil and into damaged or necrotic roots.

Causes of ecosystem transformations variability in lakes of the european part of Russia and Western Siberia (diatom analysis)

2019 ◽  
pp. 79-82
Author(s):  
Lev V. Razumovsky
Keyword(s):  
Western Siberia ◽  
Graphical Analysis ◽  
European Part ◽  
Analysis Method ◽  
Climatic Region ◽  
Diatom Analysis ◽  
Lake Ecosystems ◽  
Distinctive Features ◽  
European Part Of Russia

On the basis of author's graphical analysis method, the typification of lake ecosystems transformation scenarios depending on the size of lakes was carried out. It was confirmed that the type of transformation depends not only on size of the lake, but also on the landscape and climatic region in which it is located. The distinctive features of lake ecosystems transformation types in the European part of Russia and in Western Siberia were analyzed and compared.

EFFECTIVENESS OF DOSING APPLICATION OF BENATAL GROUP HERBICIDES IN SUGAR BEET SOWING

1970 ◽  
pp. 49-51
Author(s):  
V. Z. Venevtsev ◽  
М. N. Zakharova ◽  
L. V. Rozhkova
Keyword(s):  
Sugar Beet ◽  
Agricultural Research ◽  
Humus Content ◽  
Crop Protection ◽  
Experimental Plot ◽  
Agricultural Research Institute ◽  
Row Crops ◽  
Sugar Beet Variety ◽  
Sowing Machine

Ryazan region annually receives stable yields of sugar beet roots 40 t/ha. Further growth of yields depends on balanced nutrition of plants cultivated hybrids, from the quality of the soil and of the phytosanitary State of sowing culture. Weed vegetation in wider spaced row crops of sugar beet in the initial periods of vegetation is high competition culture. The article presents the results of three studies on the effectiveness of the herbicide betanalnoj group, used to reduce contamination of sowing culture annual dicotyledonous weeds and increase the harvest of sugar beet roots. Studies conducted on experimental fields ISSA-branch FGBNU FNAC WIM (former AGRICULTURAL RESEARCH INSTITUTE in Ryazan). Soil: dark grey forest tjazhelosuglinistaja, humus content 4.0%, potassium and phosphorus-high pH is 5.8. Area of cultivated plots 50 m2, repetition, four sugar beet variety-Ocean. The predecessor-winter wheat. Under the autumn ploughing had made NPK120 under presowing cultivation-N60, SEV conducted seeder sowing machine. For crop protection herbicides were tested annually of sugar beet Betanal progress, UF-1.0 l/HA, Forte di Belvedere-1.0 l/HA, Betanal Max Pro-1.5 l/HA, Bajrang engineering works Super-1.5 l/HA, once applied to weeds. The harvest of sugar beet roots, take into account the square 10 m2 in 4-times repeated with each experimental plot by weighing machinery, processed data by ANOVA. The research found that studied herbicides efficiently at 87-92%, reduced infestation annual dicotyledonous weeds and increase the harvest of sugar beet roots to 29.9-44.1%

Аquatic and helophytic vegetation of the Yamozero Lake (The Komi Republic)

2011 ◽  
pp. 101-116 ◽  
Author(s):  
B. Yu. Teteryuk
Keyword(s):  
Eastern Europe ◽  
Plant Communities ◽  
Rare Species ◽  
Komi Republic ◽  
European Part ◽  
Regional Level ◽  
North East ◽  
The North ◽  
European Part Of Russia ◽  
Floristic Classification

The results of a sintaxonomical study of plant communities of the Yamozero lake (the North-East of the European part of Russia) are presented. The diversity of the aquatic and helophytic vegetation of the Yamozero lake consists of 16 associations and 2 communities of 6 unions, 4 orders and 2 classes of the floristic classification: Potamogetonetea (7 associations, 2 communities), Phragmito-Magnocaricetea (9 associations). Many of described associations are widely distributed in the Central and the Eastern Europe. Some associations have the boundaries of their ranges. Some communities include 2 rare species of regional level: Isoetes setacea and Sagittaria natans.

Peronosporales of Skadovsky Zvenigorod Biological Station (Moscow Region)

2018 ◽  
Vol 52 (1) ◽  
pp. 91-100
Author(s):  
E. Yu. Blagoveshchenskaya
Keyword(s):  
Downy Mildew ◽  
European Part ◽  
Moscow Region ◽  
State University ◽  
Biological Station ◽  
Annotated List ◽  
European Part Of Russia ◽  
First Time ◽  
Moscow State University

The paper provides the results of seven-year study of downy mildew on Skadovsky Zvenigorod Biological Station of Moscow State University (ZBS MSU, Moscow Region). A total of 29 species of Peronosporales (Oomycota) were revealed during the study. An annotated list of species is presented, among them Peronospora anemones is recorded for the first time for Russia, P. chelidonii and P. stachydis are new for the European part of Russia, 8 species are new for the Moscow Region.

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