The current paper has presented the results of the estimation of productivity of the winter wheat varieties ‘Krasa Dona’, ‘Polina’ and ‘Yubiley Dona’ when using liquid complex fertilizers ‘Strada N + Mono Sulfur (S)’, ‘Strada P + Mono Sulfur (S)’ and ‘Diform Silicon-potassium’. The treatment of winter wheat plants was carried out in the form of foliar top-dressings in the stages of tillering and stem extension. The study was carried out on the basis of the FSBSI “Agri- cultural Research Center “Donskoy” in 2019-2020. The trials were laid in the crop rotation of the laboratory for primary seed production and seed study. The purpose was to study the effect of liquid complex fertilizers on the productivity of the studied winter wheat varieties. When using fertilizers for all varieties, there was a tendency to an increase in the density of the productive stand on 18-61 pcs/m2 in comparison with the control. The variety ‘Krasa Dona’ showed the best indicators of the traits ‘number of grains per head’, ‘grain weight per head’ and ‘1000 grain weight’ being fertilized with ‘Strada N + S’ (43 pcs., 2.19 g and 45.7 g) and ‘Diform Silicon-potassium’ (46 pcs., 2.30 g and 46.5 g). The variety ‘Polina’ showed good results after being treated with ‘Strada P + S’ (48 pcs., 2.30 g and 42.1 g) and ‘Diform Silicon-potassium’ (51 pcs., 2.43 g and 42.4 g). The variety ‘Yubiley Dona’ showed the greatest increase of the trait ‘number of grains’ with the fertilizer ‘Diform Silicon-potassium’. The trait ‘1000 grains weight’ had an increase of 2.3 g, and ‘grain weight per head’ was 0.29 g. The treatment with fertilizers did not affect the trait ‘plant height’. The highest productivity of the variety ‘Krasa Dona’ was obtained when being fertilized with ‘Strada N + S’ (9.4 t / ha) and ‘Diforma Silicon-potassium’ (9.5 t/ha); the productivity of the variety ‘Polina’ increased after ‘Strada P + S’ (8.8 t/ha) and ‘Diform Silicon-potassium’ (9.1 t/ha), and the productivity of the variety ‘Yubiley Dona’ increased after ‘Diform Silicon-potassium’ (8.9 t/ha). The maximum economic effect (19080 rubles/ha) with 9.5 t/ha of productivity was obtained from the variety ‘Krasa Dona’ after the treatment with the fertilizer ‘Diform Silicon-potassium’. The experimental results have shown that the use of complex fertilizers has a positive effect on the productivity of winter wheat plants.
Яровой ячмень в условиях Северного Кавказа является важной зерновой продовольственной, кормовой и технической культурой. Выяснено, что в процессе репродуцирования сортов ярового ячменя происходит его постепенное ухудшение в результате механического, биологического засорения, расщепления и увеличения уровня поражениями болезнями. В связи с этим периодически возникает необходимость обновления семян используемых сортов ярового ячменя. Цель исследований-описать динамику изменения посевных и урожайных качеств семян ярового ячменя при их воспроизводстве. В задачу исследований входило изучение основных посевных и урожайных свойств семян при их воспроизводстве. В лабораторных условиях по стандартным методикам определяли энергию прорастания, лабораторную всхожесть, силу роста, массу 1000 семян и интенсивность начального роста. Для изучения использовали оригинальные семена питомника размножения первого (ОС (ПР-1)) и второго года (ОС (ПР-2)), питомник размножения (ОС (С/Э)), элиты (ЭС), первой репродукции (РС-1), выращенные в южной зоне Ростовской области в период 2016-2017 гг. Наиболее важными показателями их посевных качеств являются чистота семян, крупность зерна, энергия прорастания, всхожесть и сила роста. Установлено, что в среднем за два года показатель энергии прорастания в зависимости от категории семян варьировал в пределах от 88,0 у репродукционных семян (РС-1) до 94,0% в питомнике размножения первого года (ОС (ПР-1)). Разница между энергией прорастания и лабораторной всхожестью-от 4,3 до 7,0%. Рассмотрено, что урожайность и масса 1000 семян имеют тенденцию к снижению от высших репродукций (питомника размножения) к низким (репродукционные семена). Наибольший выход кондиционных семян получен в питомнике размножения первого года (ОС (ПР-1))-85,5%, он превысил значения репродукционных семян на 4,6%.
The current paper has presented the stages of variety changing and the results of four-year study (2016-2019) of spring barley varieties bred in different years by the farmers of the Center. The area occupied by spring barley in the Rostov region in 2016-2019 ranged from 315.12 to 406.41 thousand hectares, which was from 6.7 to 8.9% of the total arable land. The average productivity in the region for all the years studied was 2.3 t/ha, varying from year to year from 1.7 t/ha in the dry 2018 year to 2.8 t/ha in the most favorable 2017 year. The 2018 year was unfavorable in terms of climatic conditions, where the area under spring barley was almost 354 thousand hectares, and the gross yield was 601.8 thousand tons. The purpose of the work was to consider the periods of spring barley variety changing in primary seed production. The study was carried out on blackearth (chernozem) soils of the southern zone of the Rostov region at the FSBSI "Agricultural Research Center "Donskoy". The varieties were sown in the spring at the time optimal for spring crops. The maximum productivity of many spring barley varieties in breeding plots exceeded 5.0 t/ha. In 2016-2019 in seed plots, there were sown such spring barley varieties as "Gris", "Ratnik", "Leon", "Schedry". The year of 2018 was unfavorable for these varieties, both in scientific departments and among agricultural producers in the Rostov region. The variety "Schedry" showed the lowest productivity (4.8 t/ha and 3.9 t/ha) and 1000 grain weight (45.0 g and 42.2 g) in both PIP-2 and OS-1. In the favorable year of 2017, the variety "Gris" showed the best results, namely 8.0 t/ha of productivity and 50.6 g of 1000 grain weight. The variety "Gris" was characterized with a stable high 1000 grain weight (on average 50 g) through all years. In different years the varieties "Ratnik" and "Leon" produced the best yields.
The production of winter wheat varieties, which are characterized by high productivity and sowing qualities of seeds, is one of the ways to improve productivity and gross grain harvest in the region. The current paper has presented data on the productivity, sowing qualities and biological properties of the original seeds of the winter bread wheat varieties ‘Stanichnaya’, ‘Lydia’ and ‘Asket’, grown in the laboratory for primary seed production of the Federal State Budgetary Scientific Institution “ARC “Donskoy”. The purpose of the research was to study the productivity and sowing qualities of the winter bread wheat varieties. Productivity is the main criterion for the value of a variety. It was found that with an average productivity (5.8 t/ha) of the variety ‘Stanichnaya’, the data by the years of 2018–2020 varied from 5.1 to 7.2 t/ha, and for the variety ‘Asket’, at a similar level of average value, the variation ranged from 5.2 to 6.8 t/ha. There was found that 1000-seed weight depended on the variety and climatic conditions, and not only on the cultivation technology. The leader in this indicator was the variety ‘Stanichnaya’, with an average value (44.5g) of 1000-seed weight. The maximum yield of conditioned seeds during the years of research was identified in the varieties ‘Stanichnaya’ (73.5%) and ‘Lydia’ (72.4%); the minimum was in the variety ‘Asket’ (71.7%). There was noted that the germination energy of the varieties ‘Stanichnaya’, ‘Lidiya’ and ‘Asket’ ranged from 88 to 92%. The difference between germination energy and laboratory germination ranged from 5 to 8%. When determining the intensity of the initial growth, it was found that the maximum values of the sprout length and weight of 100 dry sprouts were identified in the variety ‘Stanichnaya’ (11.0 cm and 0.63 g); the smallest values of these traits were identified in the varieties ‘Lydia’ and ‘Asket’. Field germination varied by the varieties from 73 to 82%, deviations of this trait from laboratory germination ranged from 14 to 23%. Over the years of study, for all studied varieties, the sowing qualities of seeds corresponded to GOST R 52325-2005.
The current paper has presented the data on the organization of primary seed production of spring barley. There has been considered the concept of “primary” seed production, which is based on the individual-family method of selecting families with a two-year estimation of progeny, which allows preserving and identifying varieties according to the most important economic and biological traits and properties. There has been emphasized an importance of using qualified seeds in the preservation of the variety. The purpose of the current study was to evaluate the varietal and sowing qualities of spring barley varieties in the primary links of seed production in the conditions of the Rostov region. The study was carried out in the research crop rotation of the laboratory for primary seed production in 2019–2021. In the study there were used 7 spring barley varieties developed by the FSBSI “ARC “Donskoy”. There was found that the field and laboratory culling in the nurseries for testing a first-year progeny varied from 16.6 to 45.3%; and in the nurseries for testing a second-year progeny it ranged from 13.6 to 33.3%. There was determined that the largest productivity was formed by the varieties ‘Priazovsky 9’ (7.3 t/ha) and ‘Gris’ (7.4 t/ha) in 2019, and by the varieties ‘Gris’ (7.5 and 6.3 t/ha), ‘Fedos’ (8.0 and 6.1 t/ha) and ‘Format’ (7.6 and 6.3 t/ha) in 2020 and 2021. 1000-seed weight of more than 45 g was produced by the varieties ‘Priazovsky 9’, ‘Gris’ and ‘Format’. There was found out that the yield of qualified seeds changed from 73.9% (the variety ‘Shchedry’) to 80.6% (the variety ‘Ratnik’) in 2019, from 70.0% (the variety ‘Shchedry’) to 76.0% (the variety ‘Gris’) in 2020, from 68.1% (the variety ‘Shchedry’) to 78.4% (the variety ‘Format’) in 2021. There was established that the seed material of all spring barley varieties met the requirements of GOST according to the main sowing and varietal indicators, such as seed purity, moisture, germination energy and sowing suitability.
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