TAURIDA HERALD OF THE AGRARIAN SCIENCES最新文献

{"title":"Potassium status of sod-podzolic loamy soils","authors":"V. Sychev, L. Nikitina","doi":"10.33952/2542-0720-2021-2-26-233-243","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-233-243","url":null,"abstract":"Potassium is one of the essential plant nutrients. Despite numerous surveys, some issues related to the transformation of potassium in soils require additional study. The purpose of the research was to study the potassium transformation in sod-podzolic loamy soils and its entry into plants influenced by various farming methods in long-term field experiments of different duration. Field experiments were conducted at the experimental station of the FSBSI “Pryanishnikov Institute of Agrochemistry” located in the Moscow region, Domodedovo district, village of Barybino. To study the potassium status, an archive of soil samples created in the Geographical Network of Experiments with Fertilizers was used. Soil samples were collected in long-term field experiments after their closure (experiment SH-8, year of laying – 1971–1973, duration – 14 years) or modification (experiment SH-5, year of laying – 1964-1966, duration – 28 years). The experimental schemes included the systematic introduction of various fertilizing systems (organic, mineral, organo-mineral) and the determination of their impact on crop rotation productivity and soil fertility. Previous studies have shown that the formation of the crop yield in the context of long-term potassium deficiency burdened by the absence of fertilization was chiefly due to the consumption of non-exchangeable potassium by plants. For the 14–year period, the annual use of non-exchangeable potassium in the control and NP variants was 62.0-63.0 kg K2O/ha. As potassium reserves in the soil of the control variant become depleted (longer experiment), its assimilation from the non-exchangeable form decreased by 1.6 times and amounted to 39.5 kg K2O/ha. The use of a mineral fertilizing system (potassium dose < 90 kg/ha for 14 years) increased the annual mobilization of the non-exchangeable form of the element (over 100 kg/ha of K2O). The transformation of soil potassium forms that differed in the degree of their availability for plants was determined by the fertilizing systems, the doses of potassium fertilizers in the systems, as well as the duration of the experiments.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75569658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of triticale variety samples by crop structure elements","authors":"N. Sokolenko, N. M. Komarov","doi":"10.33952/2542-0720-2021-2-26-200-207","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-200-207","url":null,"abstract":"Breeding improvement of triticale requires the search for genetic sources for hybridization. Our research aims at identifying high-yielding genotypes of winter triticale and determining the influence of structural elements on this indicator to optimizing selection during the breeding process. In 2014–2018, fifty variety samples of triticale were studied in the North Caucasus Federal Agricultural Research Centre. Soil – ordinary chernozem, medium loamy, medium-thick, low-humus. Black fallow preceded all × Triticosecale Wittmack samples. The experiment was laid having only one replication. The area of the plot was 1 m2. Triticale variety ‘Valentin 90’ served as a standard. We identified 25 medium-yielding and 25 high-yielding varieties. Grain yield in the first group was lower than in the second one and amounted to 784 ± 191 g/m2 and 1024 ± 202 g/m2, respectively. High-yielding samples exceeded the average-yielding ones in the number of spikelets (32.0 ± 2.17 and 31.2 ± 2.18 pieces), grains per ear (69.1 ± 13.0 and 64.5 ± 10.6 pieces) and weight of grain per ear (3.26 ± 0.61 and 3.00 ± 0.61 g). The yield and weight of grain per ear vary significantly (Cv > 20 %). Ear size, number of grains in the ear and spikelet, 1000 grain weight and triticale ear density do not vary much (Cv > 10 %). The most stable trait is the number of spikelets per ear (Cv < 10 %). A weak positive correlation was observed between the yield and number of grains per spikelet (r = 0.18 ± 0.06), yield and ear (r = 0.22 ± 0.06), as well as yield and weight of grain per ear (r = 0.29 ± 0.06). In the group of high-yielding variety samples, there was a reliable weak negative correlation between the yield and number of spikelets per ear (r = −0.32 ± 0.08), between the yield and ear density (r = −0.24 ± 0.09). Grain yield of more than 1.000 g/m2 had the following variety samples – ‘Ugo’, ‘RAH 121/04’, ‘Kitaro’, ‘Tewo’, ‘Ratne’, ‘Slavetne’, ‘Adas’, ‘Dar Belorussii’, ‘Dinamo’, ‘Dinaro’, ‘Liniya 71’, ‘Lamberto’, ‘PRAG 203/1’, ‘Nemchinovsky 1’ and ‘Valentin 90’ (standard).","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79409209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of seedlings of essential oil rose variety ‘Lada’ depending on the scheme and age of the nursery plot","authors":"V. Zolotilov, A. Mishnev, O. Zolotilova, O. Skipor","doi":"10.33952/2542-0720-2021-2-26-100-108","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-100-108","url":null,"abstract":"Interest in essential oil production is reviving in Russia. Attention to essential oil rose as one of the main crops in essential oil production, therefore, grows too. Expensive planting material is one of the constraining factors in increasing the acreage of Rosa L. plantations. Green cutting is the most cost-effective method. However, it requires particular conditions for growing mother plants. The purpose of the research was to choose the optimal scheme of growing mother plants and determine the lifetime of the shrubs of essential oil rose variety ‘Lada’ to increase the yield of seedlings by rooting green cuttings. The studies were conducted between 2007 and 2015 at the trial fields of FSBSI “Research Institute of Agriculture of Crimea” located in the village of Krymskaya Rosa Belogorskiy district. Research material – essential oil rose variety ‘Lada.’ Climate of the study area – arid. The studies were carried out according to the methodology of field experiments on the technology of essential oil crops cultivation and guidelines for obtaining certified planting material. The nursery plot was laid in 2006. We studied two mother plant placement schemes (according to the feeding area) 0.50 × 0.15 m and 0.50 × 0.25 m. Field experiments were replicated four times. Accounting area – 17.5 m2. The maximum number of seedlings from 1m2 was obtained when mother plants were placed according to the scheme of 0.50 × 0.15 m. This scheme allowed obtaining 742 conditioned seedlings per one square meter for nine years of nursery plot exploitation or 7 to 136 young plants annually, depending on the age of the mother plants. The maximum number of green cuttings (283–296) per unit area was harvested for the eighth or ninth year of the nursery plot exploitation. The maximum number of seedlings (136) was obtained for the 8th year of nursery plot operation. The rooting rate of green cuttings harvested in the first year is not high – only 23 %. In the next five years, 50 to 65 % of green cuttings can root. From the 7th year of nursery plot operation, there is a decrease in the possibility to root (to 35–48 %).","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91384534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil fertility and corn yield changes depending on the tillage system","authors":"A. Mnatsakanyan","doi":"10.33952/2542-0720-2021-2-26-155-164","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-155-164","url":null,"abstract":"Tillage system is one of the factors that influences crop yield. The aim of the research was to determine the influence of the basic tillage systems on the change in soil fertility, yield and quality of corn grain in the soil and climatic conditions of the central zone of the Krasnodar Territory. The surveys were conducted in 2018–2020 on the experimental fields of the FSBSO “National Center of Grain named after P. P. Lukyanenko”. Soil – chernozems leached. All the experiments were carried out according to the standard methodology. In a stationary experiment, observations were performed to study several tillage practices: conventional tillage (25 cm depth plowing), mulch tillage with soil decompaction (reduced tillage done with a chisel plow to a depth of 32 cm for row crops), mulch tillage (deep tillage is excluded, disking to a depth of 10 cm twice or thrice is used instead). Plowing to a 25 cm depth improves the bulk of the soil in the 0–30 cm layer. However, chiseling to a depth of 32 cm and disking to a depth of 10 cm twice or thrice caused soil compaction. Standard tillage practice led to a decrease in the number of agronomically valuable aggregates (61.1 %) and their water resistance (59.4 %) compared to soil decompaction and minimum-tillage systems. The highest rates of productive moisture reserves were on the plots with traditional tillage and decompaction (140.6 and 141.5 mm, respectively, which is 14.7 % higher compared to the minimum mulching). The studied soil cultivation systems did not affect “1000-grain weight” but significantly affected the yield of grain from one ear (124.3 g) and the number of formed ears per one plant (1.04 pcs.). The corn yield on the fields with traditional and decompaction tillage methods was 56.9 and 55.9 c/ha, respectively; on minimum-tillage system, it decreased by 4.8 %. Protein content in grain harvested from the plots with traditional tillage practice was 11.4 %, which is higher compared to the minimum-tillage system. No significant differences were detected for crude ash and dry matter.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76136676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chromatographic profiles of antifungal exo- and endometabolites of Bacillus velezensis","authors":"T. M. Sidorova, A. Asaturova, V. V. Allakhverdyan","doi":"10.33952/2542-0720-2021-2-26-191-199","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-191-199","url":null,"abstract":"The antifungal activity of the Bacillus bacteria is based on their ability to produce metabolites. Therefore, when selecting a strain that produces an effective biofungicide, it is necessary to assess the metabolism of bacteria. The aim of this work is to isolate exo- and endometabolites of the promising B. velezensis BZR 336g and B. velezensis BZR 517 strains and assess their antifungal activity. Studies were carried out in 2020–2021. The object of the study is a liquid culture of the B. velezensis BZR 336g and B. velezensis BZR 517 strains. Methods of liquid extraction, ascending thin layer chromatography (TLC), bioautography with a test-culture of Fusarium oxysporum var. orthoceras and Alternaria sp. fungi were used to analyze metabolites. The ability of the strains to accumulate a complex of active metabolites showing antifungal effect from fungistatic to fungicidal action was revealed. On the bioautogram of exometabolites, we found two most pronounced zones (Rf 0.18 and 0.29) of Fusarium oxysporum var. orthoceras BZR P1 growth inhibition (fungicide). Zones with Rf 0.58 for B. velezensis BZR 336g and Rf 0.70 for B. velezensis BZR 517 correspond to the test fungus growth retardation (fungistatic). Significant suppression of Alternaria sp. BZR P8 growth was also observed in two zones (Rf 0.18 and 0.29). The use of surfactin, iturin A, fengycin (Sigma-Aldrich®) in the TLC analysis made it possible to detect similar lipopeptides in the composition of metabolite complexes produced by the studied bacteria. It should be noted that the studied strains differed both in their ability to produce metabolites of different structure (can be found when analyzing chromatograms under ultraviolet light) and in their effect on phytopathogenic fungi in vitro. This may indicate possible differences in the mechanism of antagonistic activity of bacteria against phytopathogenic fungi. Thus, B. velezensis BZR 336g and B. velezensis BZR 517 produce a significant set of antifungal metabolites and can be used as strains to produce effective biofungicides.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91468792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Productivity and adaptability of winter bread wheat varieties developed by the SSE “Agricultural research center «Donskoy»” in the southern part of the Rostov region","authors":"V. Chernova, S. Podgorny, O. Skripka, A. Samofalov, S. Gromova","doi":"10.33952/2542-0720-2021-2-26-261-270","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-261-270","url":null,"abstract":"The current paper has presented the results of a five-year (2016–2020) study of nine winter bread wheat varieties (‘Aksinya’, ‘Nakhodka’, ‘Etyud’, ‘Shef’, ‘Donskaya Step’, ‘Yubiley Dona’, ‘Univer’, ‘Zodiak’, ‘Ermak’ – standard) developed in the SSE “Agricultural Research Center «Donskoy»” (city of Zernograd). In the competitive variety testing, they were scrutinized according to productivity, its elements, ecological stability, adaptability and breeding value. The purpose was to study the new winter bread wheat varieties of intensive type developed by the ARC “Donskoy” on productivity, adaptability and their indicators, as well as a balance between them, in order to identify new promising genotypes. According to the study results, it has been found that the average productivity was 9.32 t/ha in 2016–2020. The highest productivity was identified in the varieties ‘Univer’ (9.86 t/ha) and ‘Donskaya Step’ (9.76 t/ha). Structural analysis of the studied varieties has shown that their productivity was formed due to such elements as ‘productive plant density’ (variety ‘Shef’); ‘productive tilling capacity’ (variety ‘Etyud’); ‘number of spikelets per head’ (variety ‘Univer’); ‘number of kernels per head’ (variety ‘Ermak’); ‘1000-grain weight’ (variety ‘Zodiak’). While studying the varieties according to general adaptive capacity, such varieties as ‘Zodiak’ (0.10), ‘Donskaya Step’ (0.44) and ‘Univer’ (0.54) have been identified. Varieties ‘Yubiley Dona’ (1.07), ‘Donskaya Step’ (1.06), ‘Univer’ (1.05) and standard variety ‘Ermak’ (1.02) were found highly adaptable to environmental conditions, i.e. these varieties positively respond to the improvement of growing conditions and belong to the varieties of intensive type. Variety ‘Etyud’ (0.03) has demonstrated the maximum stability over the years of study, ‘Univer’ (0.60) and ‘Ermak’ (0.17) turned to be less stable. In our trials, all varieties had a breeding value almost at the same level, ranging from 5.10 (‘Ermak’) to 5.96 (‘Donskaya Step’). Taking into account the complex of such indicators as general adaptive capacity, stability and breeding value, varieties ‘Donskaya Step’ and ‘Univer’ can be referred to as the most adaptive ones among all studied in the current work.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81903838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"СРАВНЕНИЕ СЕЛЕКЦИОННЫХ ЛИНИЙ ПШЕНИЦЫ С ГИБРИДОМ F1 ПО ХОЗЯЙСТВЕННО ЦЕННЫМ ПРИЗНАКАМ","authors":"S. B. Lepekhov","doi":"10.33952/2542-0720-2021-2-26-145-154","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-145-154","url":null,"abstract":"Creation of doubled haploid lines in wheat is a promising direction of research in Russia. However, the criteria for identifying good cross combinations, for which it is advisable to carry out androgenesis in vitro, have not been defined. One of these criteria could be the rate of heterosis in F1 or F2. The aim of this work was to establish the possibility of achieving the yield level of the F1 hybrid by the lines of later generations. The studies were carried out at the experimental fields of the FSBSI “Federal Altai Scientific Center for Agrobiotechnology” in 2017-2019. Varieties ‘Golubkovskaya’, ‘Omskaya 28’, ‘Saratovskaya 70’, F1 ‘Omskaya 28’ × ‘Saratovskaya 70’, F1 ‘Golubkovskaya’ × ‘Saratovskaya 70’, four breeding lines from cross ‘Golubkovskaya’ × ‘Saratovskaya 70’ and seven breeding lines from cross ‘Omskaya 28’ × ‘Saratovskaya 70’ were material for this research. Germination, survival rate, plant height, number of spikes per m2, plant biomass, number of spikelets per spike and grain per spike, 1000-seed weight, grain weight per spike and plant, harvest index, yield, duration of the “germination – ear formation” period, lodging resistance and leaf and stem rust resistance were examined. In three cases out of six, high-parent heterosis in the studied F1 hybrids was observed (yield increase – 3–19 %). Five cases of significant yield improvement in breeding lines compared to F1 hybrids were detected in 2017–2019 (additional yield 2–44 %). Lines exceeding hybrid F1 in the context of yield were taller (+5–30 cm), with more extended period “germination – ear formation” (+7–8 days), higher plant biomass (+1.24–5.16 g), a larger number of spikelets per spike (0.5–2.8 units) and larger number of kernels (+3.5–8.0 units). Pure lines of soft spring wheat can be compared in yield to F1 hybrid, from which they were obtained. This fact was possible due to the selection of lines for desired traits determined by recessive genes.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75028857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil-hydrophysical information support of precise irrigation farming","authors":"V. Terleev, I. Dunaieva, Roman Ginevsky, V. Lazarev, A. Topaj, Llc “Bureau Hyperborea”","doi":"10.33952/2542-0720-2021-2-26-244-260","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-244-260","url":null,"abstract":"The relevance of the study is determined by the demand for a physically adequate mathematical description of the interactions of water in the soil to develop a model of soil moisture dynamics as the intellectual core of resource-saving technologies for precise irrigation farming. The aim of the work is theoretical substantiation and mathematical formulation of the hydrophysical functions of the soil, taking into account hysteresis. A description of three systems of soil hydrophysical functions is given. To verify and compare the systems, computational experiments were carried out using both the package of original software and “3305 Ida silt loam (> 15 cm)” soil data from the authoritative literary source – the Mualem catalogue. The parameters of the functions were identified by the method of point approximation of the experimental data on the main branches of the hysteretic water-retention capacity. Using these parameters, we calculated (i) predictive estimates for the values of the function of relative hydraulic conductivity; (ii) scanning branches of the hysteretic water-retention capacity; (iii) precise irrigation rate. The hysteresis phenomenon is not typical for the hydraulic conductivity as a function of the volumetric water content in the soil. The original functions of System 3 are recommended for use. The advantages of the proposed method for calculating the precise irrigation rate are shown. The benefit of each system is that the functions forming this system, namely the water-retention capacity and the relative hydraulic conductivity of the soil, have a common set of parameters. For the type of soil considered, in case of using the identical value of pre-irrigation soil moisture (179 [cm3 · cm-3]), both for calculating the precision irrigation rate and according to the “traditional” method, when moistening 50 cm soil layer, the total unproductive water consumption at irrigation rate 555 [m3 · ha-1] can reach 0.029 [cm3 · cm-3] or 140 [m3 · ha-1] in the calculated layer. At the same time, when applying precision standards, an excess of free moisture is not formed. It shows additional opportunities not only to save water during irrigation, especially in arid regions, but also to reduce the leaching of nutrients and agrochemicals outside the calculated soil layer and, accordingly, to reduce the additional environmental load on the surrounding area.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77389053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of the collection samples of Coriandrum sativum L. by valuable breeding indicators","authors":"N. Nevkrytaya, S. Krivda, S. Babanina, E. D. Ametova, I. Novikov, N. S. Krivchik, V. Pashtetskiy","doi":"10.33952/2542-0720-2021-2-26-167-177","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-2-26-167-177","url":null,"abstract":"Coriander is a valuable, highly profitable essential oil crop. Therefore, the development of new highly productive varieties is the main direction of breeding. The aim of the research was to study the collection of Coriandrum sativum L. (owner – Research Institute of Agriculture of Crimea) by a complex of valuable traits to identify promising samples for breeding purposes. In 2017–2019, under the conditions of the Crimean Foothills (village of Krymskaya Roza, Belogorsky district), we analyzed 164 samples from 30 regions of the world. The territory of the experimental plots belongs to the upper foothill, warm, insufficiently humid agro-climatic region. To compare the parameters, we included five coriander varieties in our study. They were created in the Research Institute of Agriculture of Crimea (‘Yantar’, ‘Ranniy’, ‘Nektar’, ‘Medun’ and ‘Silach’) and registered in the “State Register of Breeding Achievements Permitted for Use” of the Russian Federation. The work was guided by the methodological recommendations on essential oil crops breeding. Plot area – 0.6 m2, double replication. The analysis revealed high variability of the collection samples in terms of the main indicators of productivity: fruit yield (Cv = 37.2 %), content of essential oil (Cv = 51.3 %), yield of essential oil per unit area (Cv = 60.0 %). Optimal weather conditions for the accumulation of essential oil with a high content of linalool (the main component) are relatively low air humidity and increased temperature regime during flowering and fruit ripening. The following samples were identified as sources of valuable traits: vr. 341, vr. 757, vr. 756, vr. 387, VIR 415 with a mass fraction of essential oil in fruits at the level of 2.81–3.62 %; VIR 258, vr. 233, VIR 144, VIR 165, VIR 246, vr. 705 with a fruit yield that reached 52.0–73.9 g per plot. Five samples – VIR 348, VIR 421, VIR 180, VIR 431 and vr. 521 – provided a high amount of essential oil (0.90–1.23 g per plot) because of the combination of the increased yield and essential oil mass fraction.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90066206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INFLUENCE OF BASIC MINERAL FERTILIZER AND FOLIAR FEEDING WITH MICROELEMENTS ON SUGAR BEET SEEDS YIELD, STRUCTURE AND QUALITY","authors":"D. Gavrin, I. Bartenev, O. Nechaeva","doi":"10.33952/2542-0720-2021-3-27-35-46","DOIUrl":"https://doi.org/10.33952/2542-0720-2021-3-27-35-46","url":null,"abstract":"Sugar beet (Beta vulgaris L.) is one of the most important industrial crops, which is the main raw material for sugar production – a product of strategic importance widely used in food and pharmaceutical industries. In this regard, the provision of domestic beet growing with seeds of domestic hybrids that are competitive with the best foreign ones is particularly relevant. The purpose of the research is to study the effect of the basic mineral fertilizer and microelements boron and zinc on the sugar beet seeds yield, structure and quality indicators. The studies were carried out in the experimental fields of the All-Russian Scientific Research Institute of Sugar Beet and Sugar named after A.L. Mazlumov, located in the zone of unstable moistening in the Central Black Soils region in the northwestern part of the Voronezh region (Ramon village). The soil of the experimental site is represented by leached hard loamy chernozem with a medium humus content of 4.5 %. Field experiments were laid in 2018–2020 according to the methodology of B. A. Dospekhov. The experiment scheme included the following options: control (without fertilizers); double foliar feeding of seed plants with a 0.1 % solution of a mixture of boric acid and zinc sulfate before the flowering; N160P160K160; N160P160K160 + foliar feeding. Laboratory analyzes of seed quality were carried out according to GOST 22617.2 – 94. The data obtained indicate a significant effect of the basic fertilizer (N160P160K160), which contributed to a 0.53 t/ha (45.3 %) yield increase compared to the control. The sowing qualities of seeds also increased significantly: germination energy by an average of 10.3 % abs., germination – by 9.8 % abs., good quality – by 5.4 % abs. Foliar dressing with microelements had practically no effect on the yield; however, it provided a significant increase in the indicators of the sowing qualities of seeds: germination energy – by an average of 3.3 % abs., germination – by 4.7 % abs., good quality – by 4.6 % abs. Direct dependence of the value of the yield of seeds on the constituent elements of the structure was also revealed: the type of bush of seed plants, the number of productive shoots, their height and seeding per unit length. The correlation coefficient (r) for all three paired dependences of the quantities was 0.99.","PeriodicalId":22344,"journal":{"name":"TAURIDA HERALD OF THE AGRARIAN SCIENCES","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77891210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}