scholarly journals Breeding scheme and heterosis level of sugar sorghum hybrids

2021 ◽  
Vol 1 (25) ◽  
pp. 64-72
Author(s):  
A.B. Volodin ◽  
◽  
S.I. Kapustin ◽  
A.S. Kapustin ◽  
◽  
...  
Keyword(s):  
Plant Height ◽  
Field Experiments ◽  
Sugar Content ◽  
Maximum Yield ◽  
North Caucasus ◽  
Breeding Scheme ◽  
Green Mass ◽  
The North ◽  
Green Mass Yield ◽  
Selection Of

Creation and introduction of new hybrids of sugar sorghum adaptive to arid conditions allow stabilizing and increasing the productivity of forage mass over the years, which is of current importance. The aim of the research was to clarify the scheme and methods of selection of the initial material, assess the level of true heterosis, quantitative traits of green mass yield and plant height in the best obtained hybrids of sugar sorghum. The research was carried out according to the methods of laboratory and field experiments. The scheme of the breeding process included nurseries of source material and breeding nurseries, as well as creation of self-pollinated and sterile lines, hybridization, assessment of samples for CMS, combining ability, and testing new hybrids by saturating crosses and topcross. According to this scheme, sterile lines ‘A-63’, ‘Knyazhna’, ‘Zersta 38A’ were created. By methods of multiple and individual selection with subsequent inbreeding from hybrid populations, fertile paternal forms ‘Stavropolskoe 36’, ‘Galia’ and ‘Larets’ were created. Also, obtained on their basis hybrids ‘Silosnoe 88’ (standard), ‘Alga’, ‘Kalaus’, ‘Yarik’ served as the object of research. On average for 2016–2019, the most significant plant height under the conditions of the “North-Caucasus Federal Agrarian Research Center” was found in late-ripening combinations ‘Yarik’ (301.4 cm) and ‘Kalaus’ (289.0 cm). The level of true heterosis of this trait was 41.7 % and 31.6 %, respectively. In the studied hybrids, the pollination period of the parental forms coincides, the heterosis of the thickness of the stems is observed. The significant leafiness of the plants is also found to be in the late-ripening forms (15.7–16.0 %). The maximum yield of green mass was obtained from hybrids ‘Yarik’ (102.0 t/ha) and ‘Kalaus’ (86.7 t/ha). The level of true heterosis of the studied trait in these combinations was 67.9 t/ha and 47.0 t/ha, respectively, or 66.5 % and 54.2 %. The combination of other genetic plasmas provided a lower level of true heterosis. The late-ripening hybrids ‘Yarik’ and ‘Kalaus’ have significantly higher sugar content in the juice of the stems (12.89–14.03 %) compared with the mid-ripening ‘Silosnoe 88’ (8.9 %) and the medium-late ‘Alga’ (11.14 %).

Selection of china plum varieties (Prunus salicina lindl.) for use in modern plantings of the northern caucasus foothill zone

2020 ◽  
Vol 61 ◽  
pp. 69-76
Author(s):  
A. E. Dedova
Keyword(s):  
Northern Caucasus ◽  
Seasonal Growth ◽  
North Caucasus ◽  
Biometric Parameters ◽  
The North ◽  
Prunus Salicina ◽  
Breeding Station ◽  
New Varieties ◽  
Plum Varieties ◽  
Selection Of

This paper presents the results of two years of research (2018-2019) of the most important phonological phases of seasonal growth and development, biometric parameters, productivity and economic efficiency of new varieties of Chinese plum (P. salicina Lindl.) grown in the foothill zone of the North Caucasus in the Krymsk district of Krasnodar territory on a plot of the Krymsk experimental breeding station – branch of VIR. As a result of research, the varieties Angeleno, Black Star, Byron Gold, Black Amber, Larry Ann and Sun Gold were recommended for cultivation using intensive technologies.

scholarly journals Promising varieties of spring glumaceous oat of the mowing and grain-mowing directions, adapted to the natural and climatic conditions of the Volga-Vyatka region

2021 ◽  
Vol 36 ◽  
pp. 01003
Author(s):  
Elena Vologzhanina ◽  
Galina Batalova
Keyword(s):  
Weather Conditions ◽  
Climatic Conditions ◽  
High Yield ◽  
Positive Dependence ◽  
Green Mass ◽  
North East ◽  
The North ◽  
Temperature And Precipitation ◽  
Green Mass Yield ◽  
Favorable Conditions

The results of the study of 12 varieties and promising lines of glumaceous oat in the competitive variety testing of the FASC of the North-East (Kirov region) in the period from 2018 to 2020 are presented. The purpose of the research is to assess the productivity, ecological plasticity and stability of the genotypes of glumaceous oat for feed and universal use in the conditions of the Volga-Vyatka region. The dependences of grain yield and dry matter harvesting on the state of agro-climatic resources (HTC), temperature and precipitation are established. The contrasting weather conditions during the years of research allowed to conduct the most complete assessment of the studied genotypes. The most favorable conditions for the formation of a high yield of green mass of oat were formed in 2020 (Ij=3.76), grain - in 2019 (Ij=1.35). The average degree of positive dependence of green mass yield on the height of oat plants was revealed (r=0.51). The variety of the high-intensity type of the universal direction Medved, promising lines of the mowing direction (178h13 and 245h14) are distinguished.

Effect of fertility level on the yield of some native perennial grasses on the North-West Slopes, New South Wales.

1979 ◽  
Vol 1 (4) ◽  
pp. 327 ◽  
Author(s):  
GM Lodge
Keyword(s):  
Field Experiments ◽  
Maximum Yield ◽  
Perennial Grasses ◽  
Fertility Level ◽  
Native Grasses ◽  
North West ◽  
The North ◽  
South Wales ◽  
Significant Yield ◽  
Pot Culture

The effect of fertility on the yields of native perennial grasses was investigated in pot culture and field experiments. Yields of six native perennial grasses and Paspalum dilatatum Poir were determined in the glasshouse at five levels of applied phosphorus (P), sulphur (S) and nitrogen (N) and in the field the biomass of individual tussocks of eight native grasses was compared. In pot culture the maximum yields of the native perennial grasses with P, S and N applied were 15 to 75% lower than those of P. dilatatum. Within the native grasses there were significant yield differences: Bothriochloa macra (Steud) S.T. Blake, Chloris truncata R.Br. and Dichanthium sericeum (R. Br.) Camus yielded up to twice as much dry matter as either Aristida ramosa R.Br., Sporobolus elongatus R.Br. or Eragrostis leptostachya Steud. These data indicate that P, S and N are all essential for maximum yield of some native grasses, and large imbalances in the level of these nutrients resulted in seedling mortalities in most native grasses.

scholarly journals When we are the violent: The Chechen Islamist guerrillas’ discourse on their own armed actions

2017 ◽  
Vol 8 (2) ◽  
pp. 185-195 ◽  
Author(s):  
Adrián Tarín Sanz
Keyword(s):  
Discourse Analysis ◽  
Critical Discourse Analysis ◽  
Critical Discourse ◽  
North Caucasus ◽  
Discursive Strategies ◽  
Academic Literature ◽  
News Agency ◽  
The North ◽  
War Discourse ◽  
Selection Of

Over the last decades, the strategic profile of the discourse with which wars are narrated has been reinforced. This discourse has also varied in the light of a recent – and alleged – peace culture permeating Western societies. Whereas the war discourse in Russia during the Second Russian-Chechen War has been widely studied, this has not been the case of the rhetoric of the Chechen Islamist guerrillas. The aim of this paper is to contribute to bridging this gap in the academic literature on the North Caucasus, employing to this end a critical discourse analysis (CDA) of a selection of texts posted by the Kavkaz Center (KC) news agency. On the basis of this analysis, it can be concluded that one of the main discursive strategies revolved around the construction of an “us” embodying the Chechen victims of the initial aggression in a conflict provoked by the Russian “other”.

ASSESSMENT OF PROMISING ALFALFA VARIETIES’ ECONOMICALLY VALUABLE TRAITS IN THE PIEDMONT ZONE CONDITIONS OF THE CENTRAL CAUCASUS

2020 ◽  
Vol 15 (8) ◽  
pp. 1070-1076
Author(s):  
N.N. Doguzova ◽  
Keyword(s):  
Nutrient Content ◽  
Essential Amino Acids ◽  
Nitrogen Accumulation ◽  
North Caucasus ◽  
Mineral Salts ◽  
Green Mass ◽  
The North ◽  
Central Caucasus ◽  
Economically Valuable Traits ◽  
Alfalfa Varieties

Among perennial leguminous grasses, the leading place is occupied by alfalfa, which has valuable biological characteristics and economically useful traits, which have great potential and prospects for use. Alfalfa is grown in more than 80 countries of the world on an area of over 35 million hectares, in various climatic and ecological conditions and on a variety of soils. Alfalfa increases soil fertility as a result of nitrogen accumulation. Alfalfa provides high-protein feed, carbohydrates, mineral salts, including trace elements, in terms of nutrient content. Alfalfa, like other perennial legumes, is used for hay, grass flour, and green mass. Alfalfa contains a lot of lysine, and in terms of the content of essential amino acids, it surpasses corn, sorghum, soybeans, barley and a number of other crops. In recent years, the acreage of alfalfa has been expanding, the demand for seeds is increasing, but their production remains at a low level. The aim of the study is to study various varieties of alfalfa, in order to create varieties that are resistant to biotic and abiotic to stress environmental factors for cultivation in the North Caucasus. According to research, it was established that Sinegibridnaya and Kizlyarskaya alfalfa varieties surpassed other varieties by 4-6% in terms of height and green mass. The higher productivity among the tested alfalfa varieties was possessed by the Kizlyarskaya variety, in which the yield indicators were most successfully combined with height and green mass.

scholarly journals Evaluation of promising varieties of leeks as sources of early maturity, yield, commercial product in the North Caucasus of Russia

2020 ◽  
pp. 19-24
Author(s):  
L. N. Novikova ◽  
B. N. Novikov
Keyword(s):  
Population Increase ◽  
Allium Porrum ◽  
Economic Traits ◽  
North Caucasus ◽  
Early Maturity ◽  
The North ◽  
Cultivated Plant ◽  
Ancient Times ◽  
The City ◽  
Selection Of

Relevance. Leek (Allium porrum L.) has been known as a cultivated plant since ancient times. It plays an important role in human nutrition. To increase the interest of the population, increase demand and consumption, as well as widespread and popularize this culture, it is urgent to create new promising varieties of leeks that meet modern requirements and have valuable economically useful traits. The creation of new highly productive varieties is associated with the search for sources of valuable biological and economic traits: productivity, early maturity, yield. The aim of the research was to study collection varieties of leeks, to identify the sources of the necessary valuable traits for their further use in breeding work. Materials and methods. The initial material was 73 samples of leeks of the European subspecies of various ecological and geographical origin from the collection of VIR. The studies were carried out at the collection site of the Krymsk EBS, VIR Branch (Krasnodar Territory, the city of Krymsk). Results. As a result of the study of phenological, biological, morphometric and economic characteristics, the foliage of the plant, the size of its and the false stem of the "leg", productivity and yield were determined. Formed groups of samples by ripeness and use. Comparative assessment of collection samples made it possible to identify the sources of productivity: the weight of the plant and the stem, its diameter and height, the yield of plants and the yield of marketable products. The isolated sources of valuable traits are recommended as a starting material for the selection of leeks.

scholarly journals Retracted: Experience of cooperation in the creation of hematopoietic stem cells donors registry

2016 ◽  
Vol 97 (5) ◽  
pp. 777-780
Author(s):  
M A Murzabekova ◽  
J S Neredko ◽  
Ya M Marchenko
Keyword(s):  
Stem Cells ◽  
Hematopoietic Stem Cells ◽  
National Registry ◽  
North Caucasus ◽  
Hematopoietic Stem ◽  
Bar Code ◽  
The North ◽  
The Creation ◽  
Selection Of ◽  
Individual Donor

This article has been retracted. Aim. To evaluate the experience of participating in the creation of a national registry of hematopoietic stem cells donors.Methods. Potential hematopoietic stem cells donor filled out a questionnaire, after the examination, he was assigned an individual donor code (bar code). The results of typing and questionnaires are placed on the registry of potential hematopoietic stem cells donors. Maintenance of HLA-typed potential hematopoietic stem cells donors registry and the selection of compatible «donor-recipient» pairs in RMSPC «Rosplazma» were performed using a specialized program «Prometheus» (Steiner Ltd., Czech Republic).Results. 484 donors, who were indigenous peoples of Stavropol and Stavropol Krai, as well as representatives of the North Caucasus small nations of different nationalities, were included into the registry for the period from 08.20.2013 to 20.06.2014. Age ranged from 19 to 42 years. As of 31.10.2015, 31 491 potential hematopoietic stem cells donors (54% - female, 46% - male) were included into the registry, 28 509 donors were typed: 24 310 for HLA - A, B, C, and DRB1 loci; 2305 for HLA - A, B, C, DRB1, and DQB1 loci; 1894 for HLA - A, B, and DRB1 loci. The registry has the highest number of A-B-DRB1 typed donors among Russian registries. New HLA-alleles in the Russian populations were revealed in 57 cases for 28 509 typing (1:500).Conclusion. There is a clear need to enhance cooperation of RMSPC «Rosplazma» with all regions of Russia and create unified national registry of hematopoietic stem cells donors with its inclusion in international databases.

scholarly journals Use of Sorghum for Enhancing the Biodiversity and Nutritional Value of Semi-Desert Pasture Ecosystems

2019 ◽  
Author(s):  
G K Bulakhtina ◽  
A V Kudryashov ◽  
N I Kudryashova ◽  
A B Volodin ◽  
M M Shagaipov ◽  
...  
Keyword(s):  
Nutritional Value ◽  
Arid Zone ◽  
Sugar Content ◽  
Dry Mass ◽  
Mass Yield ◽  
Green Mass ◽  
Natural Pasture ◽  
Southern Russia ◽  
Green Mass Yield ◽  
Better Than

The article presents the results of studies on the adaptive potential of sorghum used for restoration of degraded pasture ecosystems, increasing their biodiversity and nutritional value. The region chosen for the experiment is a semi-desert arid part of southern Russia. The aridity coefficient is 0.11–0.30 which is typical of the arid zone. The annual volume of precipitation is 125-265 mm. Two varieties of sorghum – Travinka and Caravan – were studied. They were grown with different thickness: 10 thousand, 20 thousand and 40 thousand plants per 1 hectare. During the growing season, there was soil and atmospheric drought. The best indicators of green mass yield were recorded for Travinka for the variant “40 thousand plants per hectare – 7.9 tons per hectare, and for Caravan for the variant “20 thousand plants per hecrate – 3.9 tons per hectare. Compared with natural pasture, sorghum productivity is 18 times higher by green mass yield and 26 times higher by dry mass yield (the best options). The analysis of the chemical composition and nutritional value of sorghum showed that compared to the plants of natural pasture, sorghum is a more nutritious fodder plant. Its nutritional value is more by 0.24 feed units per 1 kg and by 1.9 % by the mass of crude protein. It is better than other plants by the content of sugar content (79 g per 1 kg) and macronutrients.

scholarly journals Agrobiological characteristics of foreign varieties of winter triticale in the conditions of the foothill zone of the North Caucasus

2021 ◽  
Author(s):  
I.R. Manukyan ◽  
◽  
М.А. Basieva ◽  
Е.S. Miroshnikova ◽  
Т.S. Abieva ◽  
...  
Keyword(s):  
Geographical Origin ◽  
Spike Length ◽  
Medium Size ◽  
North Caucasus ◽  
Winter Triticale ◽  
The North ◽  
Productivity Potential ◽  
Selection Of

As objects of research in the collection nursery, 20 varieties of winter triticale of foreign selection of various breeding and ecological-geographical origin were studied. It follows from the studies carried out that the greatest value of the spike length was noted in the samples Hortenso – 9.9 cm, Pawo – 9.1 cm, Bedretto – 9.2 cm. The weight of grain from an ear of 2.5 g and above had the samples: Раwо, Hortenso, Вlenio. The best in terms of weight of 1000 grains was found to be Pawo – 53.0, Bedretto – 55.0 g and Hortenso – 55.8 g. As a result of the research, a promising foreign sample of winter triticale Hortenso was noted. It belongs to the durum-form variety, the ear is white, spinous, hairless, dense. The length of the spike is 9.9 cm. The grain is of medium size, well done, light red. The productivity potential of the variety is more than 11.5 t/ha. Resistant to frost. The mass of 1000 grains is 55.8 g. As a result of research, highly productive samples were isolated from the collection of winter triticale: Pawo, Triskell, Hortenso, Blenio, Bedretto.

scholarly journals Methods and prospects of selection of sugar corn adapted to the conditions of the Central Forest-Steppe of Ukraine

2021 ◽  
Vol 1 (99) ◽  
pp. 230-245
Author(s):  
V. Ya. Bilonozhko ◽  
O. M. Vinogradova ◽  
S. P. Poltoretsky ◽  
N. M. Poltoretskaya
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Sugar Content ◽  
Yield Potential ◽  
Forest Steppe ◽  
Research Station ◽  
Statistical Research ◽  
Morphobiological Characteristics ◽  
Growing Conditions ◽  
Selection Of

The aim of the research is selection and genetic improvement of the source material of maize silica and sugar subspecies by methods of classical selection and experimental mutagenesis and synthesis on their basis of high-yielding, adaptive hybrids capable of stably realizing their yield potential in different growing conditions. Research methodology. Field experiments were conducted at the Cherkasy State Agricultural Research Station NSC "IZ NAAN", located in the central Forest-Steppe of Ukraine (Smila) during 2020-2021. The period of action of active temperatures (above 10 ° С) begins on April 20–28 and lasts 155–180 days. The probability of frost to -3 ° C during the sowing of corn (III decade of April and the first decade of May) is 10 and 5 %, respectively, and during ripening (September – first half of October) from 1 to 30 %. Sowing of the experimental material was carried out in the third decade of April in early May. During the growing season, phenological observations were made, during flowering the plants self-pollinated under parchment insulators, crossbreeding, evaluation and selection of the best samples were performed. Common field, laboratory and statistical research methods were used. Research results. Based on the morphobiological characteristics and assessment of the set of features of the samples of the sugar corn collection, the length of the period from emergence to flowering to 75 % of the panicles was determined, early-maturing samples were selected. When studying the genetic variability of the characteristics of the performance of inbred lines such as weight and length of the head, the number of rows of grains revealed the best lines, the average of which differs significantly from the standard. Based on genetic analysis of performance traits, it has been shown that the selection of starting material by cob weight and length may be most effective, as under favorable conditions these traits are controlled by additive genes, while other traits play a crucial role. Conclusions. The frequency of the obtained more productive self-pollinated lines on the original hybrid material with a significant excess of control indicators for such elements of productivity as cob weight, length and number of rows of grains is 7.19 ± 1.36 %. Selection based on "number of rows of grains" is effective, the best multi-row lines are selected based on genetic sources from Australia. As a result of the analysis of the sugar content in the grains, samples with a sugar content of 8.6% in the top sugar and 5.8 % in the white corn were selected. The coefficient of inheritance of quantitative traits, such as cob weight, length, number of rows of grains, number of grains in a row, is 0.71–0.93, which indicates the possibility of successful selection of these traits. All studied numbers exceed the hybrid standard by cob weight and number of rows of grains. Numbers 269, 272 and 276 and 277 were significantly better in terms of yield, with yields of 15.7–19.8 t/ha.

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