Results 11 to 20 of about 2,298 (176)

Selection of competitive of pumpkin varieties for the Lower Volga region

open access: yesОвощи России, 2019
Relevance One of the priority directions of selection is the creation of varieties that are most adapted to local conditions with high productivity. Methods The object of study – varieties and hybrids of pumpkin of three Botanical species: Cucurbita ...
Tamara M. Nikulina, Dina P. Kurunina
doaj   +3 more sources

COMPLEXES OF THE FINAL OF THE LATE SARMATIAN PERIOD IN THE LOWER VOLGA REGION

open access: yesНижневолжский археологический вестник
The traditional dating established in the historiography of the upper chronological boundary of the Late Sarmatian culture requires adjustment. After the mid-3rd century, global political changes occurred in the Volga-Don region, associated with ...
Mikhail Krivosheev, Vladimir Malashev
doaj   +2 more sources

Influence of the Volga-Kama cascade of reservoirs on the hydrological regime during the flood and the quality of the spawning cycle of fish in the Lower Volga [PDF]

open access: yesE3S Web of Conferences, 2023
The Volga-Caspian fishing subarea is the most important inland fishery reservoir in Russia. For centuries, this region has been distinguished by the high productivity of mass commercial fish species.
Zhezmer Valentin, Dudakov Nikolay
doaj   +1 more source

New data on the fauna and distribution of beetles (Coleoptera) in the Lower Volga and Middle Don regions [PDF]

open access: yesКавказский энтомологический бюллетень, 2020
A new data on the fauna of Coleoptera of the Lower Volga and the Middle Don regions (Volgograd and Astrakhan Regions, Kalmykia) are given on the basis of author’s research during 2014–2019.
E.V. Komarov
doaj   +1 more source

The ecological and coenotic features of plant communities containing Colchicum bulbocodium subsp. versicolor (Colchicaceae) in the Lower Volga region [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, 2023
The article presents a phytocoenotic description of 23 plant communities with Colchicum bulbocodium subsp. versicolor studied during the period of mass fl owering in 2014–2018.
Shilova, Irina Vasilievna   +5 more
doaj   +1 more source

The last Pleistocene glaciations phylogeography episode of Phaneroptera falcata (Poda, 1761) (Orthoptera: Tettigoniidae) in the Volga River basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment [PDF]

open access: yesActa Biologica Sibirica, 2020
This study is to research the phylogeography of Phaneroptera falcata (Poda, 1761) in the Volga river basin based on the mtDNA Cytochrome C Oxidase subunit 1 (COI) gene fragment at the last Pleistocene glaciation episode. The studied location is the Volga
Inessa O. Karmazina   +6 more
doaj   +3 more sources

The Land Deterioration in the Lower Volga Region

open access: yesПолевые исследования, 2020
Цель. В статье рассматривается проблема усиления деградационных процессов распаханных территорий. Материал и методы. Для установления связи урожайности зерновых культур с различными свойствами почвы был выделен участок пашни в системе лощинно-ложбинного водосбора.
Yuriy Pleskachev, Maxim Kostin
openaire   +2 more sources

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+1 more source

On the Origin of the Caspian Culture

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2021
Introduction. The territory of Lower Volga occupies a special place in studying the cultural genesis of Eastern Europe. Prominent cultures of the Eneolithic and Early Bronze Age were formed there and played an important role in the formation of ...
Aleksandr Vybornov   +2 more
doaj   +1 more source

Paleolithic of the Kazan Volga Region: research history and new data

open access: yesАрхеология евразийских степей, 2022
Main stages of the search for Paleolithic sites on the territory of the Kazan Volga region from the second half of the XIX century to the current moment are presented in the paper.
Madina Sh. Galimova
doaj   +1 more source

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