Background/Objectives: The research presented in the article is devoted to the problems of rural areas development in the Russian Federation, as well as to land-use planning based on the cadastral data. The authors have analyzed the notion of rural areas, revealed several directions of sustainable development of rural areas based on the state programmes and strategies, adopted in the Russian Federation. Several particular problems (establishing the boundaries of settlements and inter-settlement territories) are presented through an example of concrete municipalities of the Saratov region. Methods: The study is based on the methods of scientific research: systemic, geoinformational and statistical method. Findings: Introduction of changes into regulatory legal acts will stimulate identification of boundaries of settlements, establishment of boundaries of the land plots, which are situated on inter-settlement territories, but have address reference points of settlements; and vice versa, the boundaries of some settlements comprise land plots, which are located on the territories of other categories. It is a difficult process of ordering of the state cadastral registration of boundaries of settlements. This process is basic and principally important for the execution of documents for strategic planning of a municipality development and, generally, for further effective development of rural territories. Applications/Improvements: Boundary delimitation of land plots, establishment of boundaries of settlements, determination of the legal status of lands will have an impact on the investment policy, which contributes to social and economic development of territories, to the development of agricultural businesses, thus attracting labour resources and raising the social standard of living of rural population. Consequently, it will lead to sustainable development of rural territories of the Russian Federation.
The results of the study of starch content in corn hybrid combinations are presented. As a result of the study of experimental hybrids created on the basis of VIR collection material, the breeding and combinational value of the lines in terms of grain content and starch yield per 1 ha was revealed. The results of starch harvesting per unit area are given. The experiment includes simple hybrids (30 combinations) obtained using the full top-cross crossing scheme. In the study, the RCK 7, B 293 lines and the synthetic population of RNIISK 1 were used as testers. The interval of variation of starch content in the grain during the study period varied from low values to the average indicator. It was 60.9% to 65.2% in 2020, and 59.3% to 66.1% in 2021. The lines with high effect of total combining ability by starch content in the grain (X 46, Bz 6, Om 12, UV 106), and hybrid combinations of UV 25 / PCK 7 (63, 3-64.2%), KC 75 / PCK 7 (62.7-64.4), HLG 948 / PCK 7 (63.5-64.1), Kin 073 / PCK 7 (63.4-63.8), UV 106 / PCK 7 (63.6-66, 1), KC 25 / B 293 (63.0-63.5), HLG 182 / B 293 (63.5-63.6), KC 75 / B 293 (63.1-63.5), HLG 182 / RNISK 1 (62.9-63.6%) were identified. The experimental hybrids that form the highest yield of starch per unit area were identified: HLG 182 / RCK 7 (3,12-3,58 t/ha), UV 106 / RSK 7 (2,77-3,11), X 46 / B 293 (3,22-3,39), Om 12 / B 293 (2,72-3,85 t/ha).
In the arid conditions of the Lower Volga region, mogar is a promising fodder crop. Therefore, the purpose of the current study was to identify promising samples for the development of new varieties that would meet the requirements of domestic agricultural producers. The paper has presented the estimation results of the mogar varieties of the VIR genetic resources collection according to morphometric parameters, productivity, and nutritional value of aboveground biomass. The study was carried out in the department of perennial and annual grasses of the FSB-SI Russian Research and Project-technological Institute of sorghum and maize “Rossorgo” in 2021–2022. The objects of study were 36 mogar varieties of various ecological and geographical origin. Based on the estimation results of the initial material of mogar, ther have been identified the promising samples for further introduction in the breeding process to increase the values of individual traits, since it is advisable to use the following samples to improve the biochemical composition of the biomass, as k-1356 (Russia), k-1745 (Bulgaria), k-1748 (Bulgaria), k-1775 (Romania) to increase the content of crude protein (> 7.50 %); k-63 (USA), k-80 (USA), k-336 (Morocco), k-1854 (Hungary), k-1877 (the USA) to increase crude fat> 3.00% ; k-1356 (Russia), k-1850 (Hungary), k-1833 (China), Asket (st) (Russia) to increase crude ash >10.00%. The varieties k-605 (China), k-1027 (Kazakhstan), Atlant (Russia) are found promising for breeding work for high yields of aboveground biomass >20.00 t/ha. The studied mogar varieties k-336, k-605, k-993, k-1027, k-1726 according to the collection of fodder units per hectare exceeded the standard variety from 1.2 to 12.9 %. The highest gross energy yield per unit area, exceeding the indicator of the standard variety, was established for the varieties k-336 (Morocco), k-605 (China), k-993 (Romania), k-1027 (Kazakhstan), k-1726 (Canada), k-1775 (Romania).
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