scholarly journals Agrobiological parameters of various varieties and hybrids of sweet sorghum

2021 ◽  
Vol 17 (3) ◽  
pp. 193-198
Author(s):  
V. V. Liubych ◽  
L. I. Storozhyk ◽  
V. I. Voitovska ◽  
I. S. Tereshchenko ◽  
A. I. Losieva
Keyword(s):  
Sweet Sorghum ◽  
Sugar Content ◽  
Sugar Yield ◽  
Grain Weight ◽  
Forest Steppe ◽  
Sweet Sorghum Juice ◽  
Wide Range ◽  
Individual Productivity ◽  
High Yields ◽  
The Right

Purpose. To reveal the features of agrobiological parameters formation of sweet sorghum various varieties and hybrids in the conditions of the Right-Bank Forest-Steppe of Ukraine. Methods. During 2018–2020 twenty-one varieties and hybrids of sweet sorghum of various ecological and geographical origins (Ukraine, Russia, USA, France, Germany, Hungary, Brazil) were studied in the field. Parameters like plant height and indices of their individual productivity (grain weight per panicle, 1000 grain weight, etc.), yield of dry biomass and grain, content of sugar in juice and protein in grain, as well as estimated sugar and protein yield in a crop. The counts were carried out in the phase of physiological ripeness of the culture. Results. In the group of Ukrainian varieties and hybrids, the plants were from 272 to 306 cm high, in the foreign group – from 274 to 412 cm. Varieties ‘Red Amber’, ‘Sioux’, ‘Affas CJ 899’, ‘Freed’ and ‘Early Orange’ are of high value for breeding practice, their plants were the tallest – from 388 to 412 cm. The panicle length of sweet sorghum cultivars of Ukrainian breeding ranged from 16.0 to 17.3 cm, foreign – from 11.0 to 19.4 cm. Grain weight from one panicle varied from 32.8 to 41.6 g and from 29.2 to 43.5 g, respectively. In a wide range, depending on the varietal characteristics, the indicator of the number of grains per panicle also varied from 1338 to 1708 pcs. The mass of 1000 grains of sweet sorghum ranged from 28.0 to 31.0 g in varieties and hybrids of Ukrainian breeding, in foreign ones – from 19.3 to 31.0 g. The yield of dry vegetative mass of cultivars of Ukrainian breeding was at the level of 8.24–9.11 t/ha. The highest rates were shown in hybrid ‘Mamont’ and ‘Huliver’ variety – 9.05 and 9.11 t/ha, respectively. For cultivars and hybrids of foreign breeding, this indicator varied from 7.00 to 12.17 t/ha. Significantly higher biomass in comparison with the standard variety (‘Sylosne 42’) was produced by ‘Vorai Sumac’, ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 9.03–12.17 t/ha. The sugar content in sweet sorghum juice varied from 15.2 to 17.2%. The estimated sugar yield in Ukrainian cultivars was at the level of 0.82–0.89 t/ha, in foreign ones – from 0.72 to 1.18 t/ha. In all studied varieties it was the highest in ‘Sorgo Cucre’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ – 0.94–1.18 t/ha. Conclusions. The productivity of sweet sorghum varies greatly depending on the origin of the variety and hybrid. In the conditions of the Right-Bank Forest-Steppe, in order to obtain a high sugar yield, it is advisable to grow ‘Sylosne 42’, ‘Favoryt’, ‘Troistyi’, ‘Dovista’, ‘Huliver’ varieties and ‘Ananas’, ‘Medovyi’, ‘Mamont’ hybrids. Varieties ‘Vaconia Orange’, ‘Vorai Sumac’, ‘Sorgo Cucre’ and hybrids ‘Ald Sorghum’, ‘Sioux’, ‘Freed’, ‘Red Amber’, ‘Mohavk’, ‘Affas CJ 899’, ‘Early Orange’ provide high yields of vegetative masses. Hybrids ‘Freed’, ‘Affas CJ 899’ and ‘Early Orange’ produce a large vegetative mass (11.08–12.17 t/ha), grain yield (8.00–8.15 t/ha) and a high protein content (9.8–11.3%).

scholarly journals Sugar beets root crops productivity in different hybrids

2019 ◽  
pp. 6-12
Author(s):  
V. Hlevaskiy ◽  
V. Rybak ◽  
V. Kuyanov ◽  
R. Shapovalenko
Keyword(s):  
Sugar Beet ◽  
Germination Rate ◽  
Sugar Content ◽  
Sugar Yield ◽  
Soil Tillage ◽  
Forest Steppe ◽  
Sugar Beets ◽  
Root Crops ◽  
Crop Capacity ◽  
The Right

Modern sugar beet hybrids have a potential root crop capacity of above 50.0 t/ha and sugar content of 16.1–18.5 %. Seeds with a germination rate of not less than 90 % are being used in this case, highly efficient energy-saving technologies based on the use of agricultural techniques (crop rotation, fertilization system, soil tillage system, sowing at the final density), protection against pests and diseases, the method of harvesting root crops are used. The performance of the sugar beet hybrid is mainly determined by the genetic information contained in the seeds and the conditions in which the plants grow. The purpose of the research was to investigate the varietal features of growth, development and productivity of sugar beet in the conditions of the central part of the Right-bank forest-steppe of Ukraine. The following sugar beet hybrids were used for sowing: Olzhych, Etude, Zluka, Constanta and Anichka with the fraction of 3.5–4.5 mm and laboratory germination of 85–90 %. The growth and development of sugar beet plants of different hybrids differed. There was a tendency for more positive germination of seeds and a more complete density of seedlings in the hybrid Constanta. The productivity of the sugar beet root crops is determined by the yield, sugar content and sugar harvest. Crop capacity of the male sterile hybrids studied averaged from 46.4 to 55.6 t/ha over the three years of studies, sugar content – 15.6–17.0 % and sugar yield – 7.4–9.5 t/ha. Hybrids Zluka and Constanta appeared to be the most adapted to the conditions of the central part of the right-bank forest-steppe of Ukraine. Thus, over three years, the Zluka hybrid had an average crop capacity of 55.6 t/ha, the sugar content of the roots was 16.1 %, the sugar harvest was 9.0 t/ha, and the hybrid Constant had a yield of 55.1 t/ha, the sugar content of the roots – 16.2 %, sugar yield – 8.1 t/ha. Key words: sugar beets, hybrids, field germination of seeds, sugar content, sugar yield.

scholarly journals On limits of the distribution range of the Crimean rock lizard Darevskia lindholmi (Sauria: Lacertidae)

2021 ◽  
Vol 21 (3/4) ◽  
pp. 101-122
Author(s):  
O. V. Kukushkin ◽  
◽  
I. S. Turbanov ◽  
R. A. Gorelov ◽  
A. G. Trofimov ◽  
...  
Keyword(s):  
Distribution Range ◽  
Forest Steppe ◽  
Marginal Populations ◽  
Crimean Peninsula ◽  
Crimean Mountains ◽  
The North ◽  
Northern Border ◽  
Wide Range ◽  
Rock Lizard ◽  
The Right

New data on the boundaries of the distribution range of the Lindholm rock lizard (Darevskia lindholmi), an endemic of the Crimean Peninsula, are presented. This petrophilous lizard inhabit a wide range of biotopes in various landscape levels of the Mountainous Crimea. The upper boundary of D. lindholmi distribution in the southwest of the Main Range of the Crimean Mountains reaches an elevation of 1,520 m a.s.l. (Ai-Petrinskaya Yayla, KemalEgerek Mountain), while on the other high uplands with altitudes above 1.5 km and colder climate (Babugan and Chatyrdag), the species was traced only up to 1,250–1,320 m a.s.l. The northern border of D. lindholmi range in the western part of the Crimean Mountains runs along the Outer Foothill Range (the right bank of the Alma River), while in the eastern part it corresponds the northernmost rocky massifs of the Inner Foothill Range to the north of 45º N latitude. Isolated marginal populations found in the forest-steppe or phrygana-steppe landscapes of the Foothills and arid Southeastern Coast differs significantly in their distance from the main habitat of the species, lizards’ abundance and density. A hypothetical history of the formation of the current range of the Lindholm lizard is discussed.

Assessment of blackberry varieties suitable for growing in the Right-Bank Forest-Steppe part of Ukraine

2020 ◽  
pp. 201-206
Author(s):  
L. Shubenko ◽  
S. Shokh ◽  
Kumanska Yu.
Keyword(s):  
Crop Yields ◽  
Average Weight ◽  
Forest Steppe ◽  
Maximum Weight ◽  
Yield Level ◽  
High Yields ◽  
The Right ◽  
High Level ◽  
The University

The research aimed to study the productivity of blackberry foreign varieties (Rubus subgenus Rubus Watson) in the Right-Bank Forest-Steppe part of Ukraine as they are attractive for production due to their fruit taste and appearance. The task was to establish the beginning and duration of fruiting of blackberry varieties, to determine the yield level and the quality of the berries. A fi eld experiment was conducted on the experimental fi eld of the Scientific and Research Center of BNAU to assess the productivity of blackberry varieties. The studies were started in the spring of 2017 on blackberry seedlings with growing the culture in vitro in the biotechnological laboratory of the university. The tests included 5 varieties with climbing shoots: Smoothstem, Thornfree, Black Satin, Triple Crown, Arapaho. According to the results of observations, it was found that for two years of fruiting among the studied varieties, the earliest production was received in the Arapaho variety, in the first decade of July. Triple Crown, with the fi rst fruits ripened on August 2, was characterized by late fruiting. The Triple Crown variety diff ered by the longest period of berry coming – 35 days. The yield obtained in a year after planting is not an indicator of long-term crop yields. However, the Triple Crown variety diff ered by the highest yield in the fi rst year of fruiting, with an average of 3.7 kg of berries obtained from a bush. High yields were also observed in the Smoothstem variety. Black Satin variety was characterized by the high level of yield growth for over two years of fruiting, which amounted to 80 %. The largest in the fi rst years of fruiting were Triple Crown fruits with an average weight of 11.1 g. The maximum weight of individual berries of this variety reached 17.7 g. The Arapaho variety also stood out with its large fruits of 8.5 g on average. Some fruits reached a maximum weight of 12.1 g. Key words: blackberry, the beginning of fruiting, productivity, average weight of berries, duration of products supply.

scholarly journals Chronology of a Medieval complex from the Papskoye settlement (forest-steppe of Western Siberia)

2020 ◽  
pp. 43-52
Author(s):  
N.P. Matveeva ◽  
E.A. Tret'iakov ◽  
A.S. Zelenkov
Keyword(s):  
Material Culture ◽  
Middle Ages ◽  
Western Siberia ◽  
Archaeological Sites ◽  
Forest Steppe ◽  
Trade Routes ◽  
The North ◽  
Wide Range ◽  
High Middle Ages ◽  
The Right

A large number of imported items found in the occupation layers of archaeological sites in the Trans-Urals and Western Siberia suggest that, in the Middle Ages, these regions were on the periphery of trade routes and were involved in global historical events. In this connection, the dating of material culture provides details about trade and economic, as well as social and political, aspects of the life of communities of the past. One of the new archaeological sites allowing the dynamics of material culture to be traced is a multi-layered Papskoye settlement. This site constitutes a fortification having two areas and powerful defensive lines, located on top of the right-bank terrace of the Iset River. In this study, structures attributed to different chronological periods were analysed and artefacts were collected (7th century BC — 14th century AD). Nevertheless, collections of items dating back to the High Middle Ages (late 9th — early 14th centuries) are the most representative as they most objectively reflect the historical and cultural processes that took place in this region. Most of the finds of arrowheads, elements of cloth-ing and horse harnesses, as well as household items, in the Papskoye settlement belong to this time. In this study, we used a comparative-typological method followed by the identification of the types of things. In order to establish the most accurate chronological framework, as well as to determine the primary centres for the production of certain items, we applied the method of analogy using a wide range of material culture from the neighbouring territories, which include Altai, Mongolia, Volga region, Kama area, the Caucasus, the north of Western Siberia, etc. In this study, we identified two chronological phases within the High Middle Ages using the materials of the Papskoye fortified settlement: 1) late 9th — 12th centuries; 2) late 12th — early 14th centuries. They correspond to the period when the carriers of the Yudino and Chiyalik cultures inhabited this site. In addition, a large number of direct analogies with the neighbouring territories suggests that the territory of the forest-steppe Trans-Urals was located on the periphery of trade routes through which imports came from Southern Siberia, Volga Bulgaria and the Upper Kama area.

scholarly journals Perspective resources of resistance of spring oats to loose smut

2019 ◽  
pp. 20-23
Author(s):  
L. Necheporenko ◽  
S. Vorozhko
Keyword(s):  
Sugar Beet ◽  
Geographical Origin ◽  
Plant Genetic Resources ◽  
Forest Steppe ◽  
Loose Smut ◽  
Breeding Station ◽  
Crop Area ◽  
High Yields ◽  
The Right ◽  
Very High

Goal. Search for the most valuable sources of spring oats, resistant to the defeat of loose smut. Methods. Field, finely divided. The area of the crop area is 2 m2, the repetition is three times. The study was carried out in fields at Verhnyachka experimental breeding station of the Institute of biopower crops and sugar beet of NAAS of Ukraine. The materials for the research were 94 own selection created varieties with the involvement of varieties of different ecological and geographical origin, obtained from the National Center for Plant Genetic Resources of Ukraine. Results. The results of the study of newly created spring oats varieties in the conditions of the Right Bank Forest-steppe of Ukraine in the 2015—2018 validity for resistance to the pathogen of loose smut on an artificial infectious background are given. The total share of resistant forms of the disease was established: very high — resistant — 25.5%, high- resistant — 19.1%, resistant — 17.0%, vulnerable — 21.3%, susceptible — 16.0% and 1.1% — highly susceptible. Susceptible and highly susceptible specimen were discarded, while the vulnerable specimen were involved in the process of hybridization with resistant to sustainability. Conclusions. The differentiation of varieties of spring oats for resistance to loose smut was revealed. 58 varieties of spring oats with resistance to the pathogen of 9—6 points were detected. 22 varieties are selected, which combine resistance with high yields. 5 varieties have been created: Decameron, Darunok, Dietuchnui, Dioscurii and Denka, which are in the Register of plant varieties of Ukraine, and received the “The Certificate of registration of the sample of the gene pool of plants in Ukraine” on 5 lines of oat: 467-15, 445-1791, 399-38, 477-5 and 493-27, which can be used as donors of resistance to disease.

scholarly journals Influence of mineral fertilizers and inoculation on the formation of individual and seed productivity of soybean in conditions of the Right-Bank Forest-Step

1970 ◽  
pp. 82-92
Author(s):  
О.V. Furman
Keyword(s):  
Abiotic Factors ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Seed Productivity ◽  
Research Results ◽  
Individual Productivity ◽  
Calculation Results ◽  
Object Of Study ◽  
The Individual ◽  
The Right

Purpose. To establish the effect of seed inoculation with a microbial preparation of multifunctional action based on nitrogen-fixing and phosphorus-mobilizing bacteria and different doses and terms of mineral fertilizing on formation of individual and seed productivity of soybeans in the Right-Bank Forest-Steppe. Methods. Field (to study the interaction of the object of study with biotic and abiotic factors), test sheaf (to determine the individual productivity of plants), harvesting (to determine the seed yield), statistical (to determine the probability of research results), comparative calculation. Results. According to the research results, the most favourable conditions for the optimal parameters of plants individual productivity formation of early-maturing soybean of the Vilshanka and medium-ripening Suzirya varieties were created due to the seeds inoculation by phosphonitragin and mineral fertilizing in the dose of N30P60K60 + N15 in the phase of budding, what positively affected the level of yield as a whole. Conclusions. The technology model for intensive growing of the Vilshanka and Suzirya soybean varieties, which involves the use of seeds inoculation by a bacterial preparation based on strains of nodule bacteria (Br. Japonicum) and phosphate-mobilizing microorganisms (B. mucilaginosus) and introduction of N30P60K60 in the main fertilizing and extra-feeding with N15 provided the highest values of individual and seed productivity: the number of beans (24.7 and 28.8 pcs/plant, respectively), the number of seeds (51.0 and 56.1 pcs/plant), the weight of 1000 seeds (147.2 and 144.6 g), yield (2.91 and 3.17 t/ha). The organized factors ensured the optimal height of the lower bean attachment on the plant, which had a positive effect on yield preservation and facilitated mechanized harvesting. Improving the technology of growing the Vilshanka and Suzirya soybean varieties on the basis of bacterial and mineral nutrition has led to the highest level of profitability, respectively 124 and 160%, and energy efficiency ratios (2.20 and 2.40).

scholarly journals Studying the process of extracting sugary substances from the stalks of sweet sorghum in the technology of making food syrups

2021 ◽  
Vol 4 (11(112)) ◽  
pp. 17-24
Author(s):  
Nataliia Husiatynska ◽  
Nataliia Hryhorenko ◽  
Olha Kalenyk ◽  
Mykola Husiatynskyi ◽  
Svitlana Teterina
Keyword(s):  
Sweet Sorghum ◽  
Raw Materials ◽  
Sugar Content ◽  
Material Balance ◽  
Extraction Process ◽  
Processing Technologies ◽  
Total Sugars ◽  
Plant Raw Materials ◽  
Juice Extraction ◽  
Wide Range

The need to intensify the process of extracting sugar substances from sweet sorghum stalks in order to improve the quality and yield of the target product has been substantiated. Existing techniques of sugar substance extraction used in sweet sorghum processing technologies have been analyzed. The application of a combined technique for extracting sugary substances has been proposed implying the production of pressed and diffusion juice. The results of optimizing the press technique of juice extraction from sorghum stalks are given. The equations of material balance of products and sugars have been built, depending on such factors as the degree of pressing, the initial content of solids and sugars in the stalks. A procedure for calculating the yield of pressed juice, cake, and the content of total sugars has been devised, according to which the preliminary pressing of the stalks ensures the extraction of juice in the range of 25‒35 %, the yield of the pressed cake is 75‒65 % on average, with a sugar content exceeding 60 %. It has been experimentally established that the use of the anti-current process of extraction of sugar substances from the pressed cake ensures their complete extraction from raw materials. The rational parameters for this process have been defined. At a temperature of 66–70 °C and a duration of 20 minutes, it is possible to obtain an extract whose content of solids is 13.0 %, total sugars ‒ 11.10 %, and whose purity is 85.38 %. The research was carried out in order to intensify the extraction of sugar substances from sweet sorghum plant raw materials, to improve the technical level of the extraction process, and implement the devised method under industrial conditions. Further implementation of these results in the food industry could make it possible to establish the production of a wide range of sugar-containing products, both organically and as a natural substitute for sugar in food products.

scholarly journals Effectiveness of chemical protection of chickpea crops depending on the effect of different herbicides and seed rates

2020 ◽  
pp. 33-36
Author(s):  
Y. Makuch ◽  
S. Moshkivska ◽  
V. Smih
Keyword(s):  
Stocking Density ◽  
Application Rate ◽  
Cultivated Plants ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Crop Development ◽  
High Yields ◽  
The Right ◽  
High Level ◽  
Favorable Conditions

Goal. Search and evaluate the effectiveness of herbicides and their compositions in chickpea crops. On the basis of research to prepare a comprehensive system of protection of chickpea crops from the presence of weeds, which ensures high yields and is economically and environmentally feasible in the conditions of the Right-bank Forest-Steppe of Ukraine. Methods. The experiments were based on the following scheme: Factor A (weed protection): 1. Net control; 2. Harsh control; 3. Fabian, D.Sc. 0.1 kg/ha; 4. Bazagran, bp — 2.5 l/ha; 5. Reiser, k.e. 2.0 l/ha. Factor B (seeding rate): Seeding rate, thousand pieces / ha —500; 600; 700. Results. One way to increase the competition of chickpea plants with weeds can be to increase the stocking density of cultivated plants. It is also known that the combination of several methods of crop care contributes to the overall increase of their effect. By identifying a critical period of competitive interaction between chickpeas and weeds, it is possible to take action on the latter before they cause significant damage to the crop. Competitive reciprocity and harmfulness of weeds in chickpea crops is observed throughout the entire period of crop development. A significant decrease in productivity is observed in the presence of 10 weed plants per square meter. Increased weed density of up to 25 pc/m2 showed a 23.7% decrease in crop yield. Conclusions. On the basis of the conducted researches it is possible to make a generalization that in the conditions of humus soils of the Right-Bank Forest-Steppe of Ukraine, when applying herbicides on chickpea crops, the best results in weed control were obtained with the introduction of Fabian, dr. application rate of 0.1 kg/ha and Bazagran, pp. 2.5 l/ha. The most favorable conditions of formation of biological productivity and realization of high level of productivity of chickpea plants are observed at the norms of sowing of seeds of 600 thousand pieces/ha.

scholarly journals Productivity of sweet sorghum (Sorghum saccharatum L.) depending on the elements of plant сultivation technology for biofuel in the zone of insufficient moisture in the Forest-Steppe of Ukraine

2021 ◽  
Vol 17 (3) ◽  
pp. 240-247
Author(s):  
O. M. Hanzhenko
Keyword(s):  
Sweet Sorghum ◽  
Sugar Content ◽  
Field Research ◽  
High Energy ◽  
F1 Hybrids ◽  
Forest Steppe ◽  
Energy Yield ◽  
Energy Potential ◽  
F1 Hybrid ◽  
Stable Variety

Purpose. To reveal the influence of harvest timing of biomass of sweet sorghum various varieties and hybrids on their productivity and biofuel yield in the zone of insufficient moisture in the Eastern Forest-Steppe of Ukraine. Methods. Biological (conducting field research during 2017–2020) and statistical (descriptive statistics, analysis of variance, correlation and regression analyzes). Results. The lowest yield of sweet sorghum green biomass was during harvesting in early August. In ‘Sylosne 42’ and ‘Favoryt’ varie­ties it was 52.6 and 61.1 t/ha, in ‘Medovyi F1’ and ‘Dovista’ hybrids – 76.3 and 77.7 t/ha, respectively. The postponement of harvesting to mid-September allows increasing the yield of varieties ‘Favoryt’ and ‘Sylosne 42’ to 97.1 and 103.5 t/ha, ‘Dovista’ and ‘Medovyi F1’ hybrids up to 146.6 and 132.9 t/ha, respectively. With even later harvesting periods, an increase in the yield of green biomass was observed only in ‘Dovista’ (up to 152.5 t/ha). In the full ripening phase (BBCH 92–98), sugar sorghum plants accumulate the maximum amount of sugars in the sap. The highest cap sugar content was in plants of ‘Medovyi F1’ hybrid – 17.5%, in the other studied cultivars it varied from 14.8 to 15.5%. The hi­g­hest yield of biofuel and energy per unit area was achieved with gro­wing ‘Dovista’ (up to 815.8 GJ/ha) and ‘Medovyi F1’ (up to 792.0 GJ/ha) hybrids. Despite the high level of plasti­city, ‘Favoryt’ variety is inferior in total energy yield (up to 547.2 GJ/ha). ‘Sylosne 42’ has the lowest plasticity index (b = 0.79); however, it is the most stable variety, which allows to obtain a stable, though not high, energy yield (up to 559.6 GJ/ha). Conclusions. In the zone of insufficient moisture in the Eastern Forest-Steppe of Ukraine, the hi­ghest productivity indicators and the maximum energy potential can be provided by the hybrids of sweet sorghum ‘Dovista’ and ‘Medovyi F1’ for their harvesting not earlier than the phase of full maturity

scholarly journals Formation of indices of the individual productivity of spring barley varieties depending on seeding rate in the conditions of the Western Forest-Steppe

2019 ◽  
pp. 57-61
Author(s):  
V. H. Moldovan ◽  
Zh. А. Moldovan ◽  
S. I. Sobtchuk
Keyword(s):  
Structural Analysis ◽  
Spring Barley ◽  
Grain Weight ◽  
Forest Steppe ◽  
Seeding Rate ◽  
Individual Productivity ◽  
The Individual

Influence of the seeding rate on the formation of the number of ears and grains per ear, weight of 1,000 grains and grains per ear. According to the results of the structural analysis of spring barley plants, the indices of individual productivity are the indicator that changes and depends on the factor studied. In particular, significant fluctuations in the indicators of the weight of 1,000 grains and grains per ear were noted under an increase or decrease in the seeding rate in all the spring barley varieties studied. It is estimated that the largest weight of 1,000 grains was in Svaroh variety – 49.7—51.8, while in Armax, Barvystyi and Tiver varieties, it was 48.5—48.9 g, 46.4—48.9 g, 46.0–47.5, respectively. Grain weight per year was 0.90—0.95 g in Armax variety, 0.91—0.98 g in Barvystyi variety, 0.96—1.03 g in Svaroh variety, and 1.01—1.04 in Tiver variety. The factor studied was less influential on the formation of the number of ears and grains per ear.

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