scholarly journals ASSESSMENT OF EARLY MATURITY AND PRODUCTIVITY OF NEW CORN HYBRIDS IN THE CONDITIONS OF THE NORTHERN ZONE OF THE MIDDLE VOLGA REGION IN 2020

2021 ◽  
Vol 3 (73) ◽  
pp. 24-30
Author(s):  
O. Shaytanov ◽  
Z. Fattakhova ◽  
L. Shayakhmetova ◽  
E. Sotchenko

Evaluation of new breeding samples of early maturing hybrids of the in FSBSI ARRSI of corn 2020 was carried out on an experimental plot with gray forest heavy loamy soils. Meteorological conditions were characterized by an extremely uneven supply of heat and precipitation during the growing season. Of the earliest hybrids, RM 77/18 was isolated with the speed of recoil of moisture by the grain during ripening of 0.88% per day versus 0.64% for the Kubansky 101 standard, as a source of a valuable economic trait. The universal hybrid RM 139/18 surpassed the Nur standard in grain productivity by 10.6%, moisture-yielding speed (1.12% versus 1.02% per day for Nur) and starch content in the grain (57.7% versus 54.6% for Nur). Among the mid-early samples for silage, RM 151/18 stood out: it surpassed the Nur standard in dry matter productivity by 10.8%, output per hectare of crude protein by 35%, sugars - by 15% and metabolizable energy - by 10.6%. Both hybrids are recommended for transfer to State Variety Trials. Analyzed and noted the unreliability of the generally accepted criteria for the preliminary assessment of the early maturity of new maize hybrids in the northern zone of the Middle Volga region.

2016 ◽  
Vol 3 (1) ◽  
pp. 55-60
Author(s):  
Yu. Lavrynenko ◽  
R. Vozhegova ◽  
O. Hozh

The purpose of the research is to identify effi cient microfertilizers and growth stimulants considering biologi- cal features of new corn hybrids of different FAO groups under irrigation conditions in the South of Ukraine and trace their impact on grain productivity of the plants. The methods of the research are the fi eld method – to study the interaction of the research object with experimental factors of the natural environment, to register the yield and evaluate the biometrical indices; the laboratory method – to measure soil moisture, grain moisture content and grain quality indices; the statistical method – to evaluate the reliability of the obtained results; the calculation methods – for economic and energetic assessment of the growing techniques used. The results of the research. The paper defi nes the impact of microfertilizers and growth stimulants on the yield and grain quality of the corn hybrids of different maturity groups and on the economic effi ciency of growing them. The conclusions of the research. Under irrigation conditions of the Southern Steppe of Ukraine it is recommended that the following hybrids should be grown in dark-chestnut soils: early maturity DN Pyvykha, medium-early Skadovskyi, medium maturity Kakhovskyi and medium-late Arabat, using the growth stimulants – treating the seeds with Sezam-Nano and fertilizing with Grainactive at the stage of 7–8 leaves.


Author(s):  
Tatyana M. Guseva

The article deals with not well studied problem of the class societies’ participation in the development of librarianship in the chief towns of the Middle Volga Region. In the second half of the 19th century the initiative of libraries’ opening often come from the citizens. They created the trustee committees, whose members served the librarianship for free, donated books, money, and actively participated in the organizing of charitable performances.


2020 ◽  
pp. 65-70 ◽  
Author(s):  
Y.V. Myznikova

The microtoponymy of the Middle Volga region is of particular interest to the author because of the polyethnic and multilingual environment. It is a region of cohabitation of Slavic, Turkic and Finno-Ugric population groups. The facts of ethnocultural interaction are revealed in substrate microtoponyms, which often have Turkic origins.There are also Finno-Volga substratum elements.Many of them were reinterpreted in Russian language.


2021 ◽  
Vol 818 (1) ◽  
pp. 012047
Author(s):  
L S Sharaya ◽  
A V Ivanova ◽  
M A Aristova ◽  
R S Kuznetsova ◽  
N V Kostina ◽  
...  

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