The Scientific Journal Grain Crops最新文献

{"title":"Selection of vetch (Vicia sativa l.) genotypes resistant to abiotic environmental factors in the agrocoenoses with various supporting crops","authors":"S. Orlov, A. Hahin, S. V. Syniohub, S. M. Brovko","doi":"10.31867/2523-4544/0179","DOIUrl":"https://doi.org/10.31867/2523-4544/0179","url":null,"abstract":"Artificial selection of spring vetch began with hybrid materials selected from the nursery of the F1 hybrids. When studying spring vetch on different backgrounds, there was a significant difference between the offspring in terms of plant survival rate: against the background of oats, its values ranged from 21.8 to 34.4 % with an average of 27.5 %, and after white mustard - from 40 .2 to 53.35 % at - 47.2 %. Stabilization of the competitiveness of spring vetch in mixed sowing with oats was not observed, but there was a decrease in the share of full-fledged plants of the artificial population F4 from 0.5 to 7.9% compared to F3. There were more full-fledged spring vetch plants against the background of mustard, it was indicates that mustard has much lower competitiveness compared to oats. It was found that in each population plants with low productivity prevailed both after oats and after white mustard. The selection coefficient (per a sheaf) averaged from 19 % against background oats and up to 34.1 % - after white mustard, a total of 2240 elite plants were selected. Thus, at the first stage, spring vetch plants survived under cultivation with a supporting crop were selected. The survival rate of spring vetch in the agrocenosis with oats varied from 17.3 to 31.3 %. 2054 elite plants were obtained. The second stage of the artificial selection nursery was formed from the material of spring vetch which was tested for resistance to the competitive background of the previous year. The survival rate of spring vetch plants varied from 17.6 % to 24.5 %, 2432 elite plants were obtained. At the third stage, the offspring of spring vetch in mixed sowing with oat and white mustard was studied: 546 elite plants against the background of oat and 1694 against the background of white mustard were selected, with a total of 2240 elite plants selected. The percentage of selected plants indicates that spring vetch genotypes which cannot compete with the supporting crops and between themselves are eliminated from the population. Purposeful selection of artificial hybrid population of spring vetch promotes the formation of genetically balanced lines with increased resistance to abiotic environmental factors. Key words: spring vetch, hybrid, selection, productivity, mixed sowing.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90596622","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 density and sowing method of grain sorghum on the formation of assimilation surface and grain productivity of plants","authors":"A. Gyrka, Ya.V. Alieksieiev, Yu. Ya. Sydorenko, O. V. Bochevar","doi":"10.31867/2523-4544/0189","DOIUrl":"https://doi.org/10.31867/2523-4544/0189","url":null,"abstract":"In the course of conducted researches it was found that the leaf surface area of sorghum crops was directly proportional to the plant density. It was determined that the largest area of the assimilation apparatus forms in the panicle initiation stage. It was found that each increase in plant density by 20 thousand/ha leads to a decrease in the individual leaf surface area of the plant by 8.8–9.0 % (128–137 cm2) relative to the previous plant density. The row-width spacing was no influenced to this indicator. The largest grain weight per the panicle was formed at a plant density of 80 thousand pcs/ha. Crowdedness of crop (by 20 thousand/ha) led to a decrease in this indicator by 4.8–22.0 % compared to the previous one. An increase in agrocenosis density caused to decrease in grain weight and grain size of the panicle, but the 1000 grain weight was relatively stable. The optimal values of the 1000 grain weight in varieties and hybrids were obtained at plant density of 120–140 thousand/ha. The structure of the yield was significantly influenced by the genetic features of sorghum and the sowing density. The influence of the method of sowing was insignificant. On average, over the years of research, the highest yield of grain sorghum was in trials with a row spacing of 45 cm: Prime hybrid – 5.89 t/ha, Dniprovskyi 39 variety – 4.62 t/ha (plant density of 140 thousand/ha) and Vinets variety – 3.70 t/ha (160 thousand/ha). The grain yield of the Prime hybrid at growing with 70 cm row spacing was 5.70–5.71 t/ha at a plant density of 120–140 thousand/ha, respectively. The Dniprovskyi 39 variety had the same yield indicators (4.57 t/ha) at plant density of 120 and 140 thousand/ha. The grain yield of the Vinets variety at a plant density of 160 thousand/ha and a row spacing of 70 cm was 3.83 t/ha. Crowdedness of plants above the specified density caused a decrease in grain productivity. Key words: grain sorghum, plant density, leaf area, individual area of the assimilation apparatus, agrocenosis density, grain productivity.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"54 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78318557","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":"Chemical protection of soft winter wheat against root rots","authors":"N. V. Kuzmenko, S. Avramenko, О. M. Hlubokyi","doi":"10.31867/2523-4544/0199","DOIUrl":"https://doi.org/10.31867/2523-4544/0199","url":null,"abstract":"We are given research results of the effectiveness of pre-sowing treatment of soft winter wheat seeds with combined chemical fungicides against root rot and its influence on grain yield in the eastern Forest-Steppe of Ukraine. The research results shown that development degree of root rots as Helminthosporium (Bіpolarіs so-rokіnіana Shoemaker) and Fusarіum (Fusarіum Lіnk.) in control variant without fertilizers and protection at the spring tillering stage was 10.1 % with a prevalence of 22.6 %. In meteorological and phytosanitary con-ditions of research years, the intensity of root rots development in the spring tillering stage was reduced with pre-sowing seed treatment from 3.9 (Vitavax 200 FF standard) to 0.1% (Lamardor Pro). The technical effi-ciency of the pesticides was for Insure Perform - 69.7 %; Scenic - 77.4 %; Vincit Forte - 77.9 %; Lamardor 400 and Lamardor Pro - at the level of 78.3-78.8 %; Vitavax 200 FF standard - 50.0%, compared to the un-fertilized control. In the grain dough stage, pesticides were ineffective. Grain yield in unfertilized control was 6.64 t/ha, and in the fertilized control - 7.37 t/ha, which is 10 % more. The combined action of fertilizers and pre-sowing seed treatment significantly increased grain yield gain - from 0.78 (Vitavax 200 FF) to 1.15 t/ha (Scenik), or by 11.7–17.3 %. Seed dressing with Vincit Forte, Insure Perform, Lamardor 400, Lamardor Pro and Scenic resulted to obtain the relatively net profit of 795, 687, 763, 139 and 857 UAH/ha, respectively. Lamardor 400, Insure Perform and Vincit Forte provided the highest profitability of 119 %, 93 % and 78 %, respectively. Keywords: soft winter wheat, root rots, systemic seed dresser, technical effectiveness, yield.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79164765","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":"Path analysis of the relationships between the performance and its constituents in corn lines","authors":"S. Ponurenko, V. Kolomatska, L. Chernobay","doi":"10.31867/2523-4544/0180","DOIUrl":"https://doi.org/10.31867/2523-4544/0180","url":null,"abstract":"The article presents the results of studying the genotypic variability parameters and relationships between traits affecting the performance in corn lines. In a series of three-year trials in 2006–2020, genotypic levels of the performance and its constituents in mid-early and mid-ripening corn lines, which were bred in the Laboratory of Corn Breeding and Seed Production of the Plant Production Institute named after V. Ya. Yuriev and became a part of its working collection, were determined. It was found that the average group performance of mid-ripening lines was higher than that of mid-early ones with differences depending on kernel type. Path analysis of genotypic correlations between the performance and its constituents allowed for evaluation of direct and side effects. It was found that the coefficients of pair correlation between the performance and its constituents were positive and mostly low or moderate, ranging 0.327 for \"kernel number per ear\" trait to 0.656 for \"ear diameter\" trait. However, when the correlations between the studied traits were divided into direct and side effects, the direct path coefficients were only high for the impact of \"kernel number per ear\" and \"1000-kernel weight\" traits (0.835 and 0.812, respectively) on the performance. Such traits as the \"ear diameter\", \"number of kernel rows\" and \"kernel number per row\" had very low values of the direct path coefficients (0.041 – 0.098), but affected the performance indirectly through the “kernel number per ear” trait. The \"number of kernel rows\" (0.622) and \"kernel number per row\" (0.544) exerted the greatest indirect impact on the performance through the \"kernel number per ear\" trait. As to the “1000-kernel weight” trait, there were significant negative indirect effects of the \"kernel number per ear\" and \"number of kernel rows\" traits, with the path coefficients of -0.350 and -0.362, respectively. It was shown that \"ear diameter\"-, \"number of kernel rows\"-, and \"kernel number per row\"-oriented selections were indirect, as they are components of the \"kernel number per ear\" trait and are at another level in the performance module. The “kernel number per ear”- and “1000-kernel weight”-oriented direct selections for performance can be most effective, but regarding the latter, one should take into account the negative side effects of the \"kernel number per ear\" and \"number of kernel rows\" traits, which can be achieved by building up aggregated indexes. Keywords: corn, inbred line, performance, correlation analysis, path analysis.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73554524","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":"The yield of Hungarian sainfoin (Onobrychis are-naria L.) in the Right-Bank Steppe of Ukraine","authors":"O. N. Hrygorieva, T. M. Almaieva, N. Umrykhin","doi":"10.31867/2523-4544/0188","DOIUrl":"https://doi.org/10.31867/2523-4544/0188","url":null,"abstract":"The results of scientific research conducted in 2017–2019 by the Institute of Agriculture of the Steppe NAAS in the nursery of competitive variety trial under the selection and seed crop rotation with 12 breeding numbers of Hungarian sainfoin are presented. All these samples were analyzed for fresh mass yield, seed yield and dry matter content. It was found that a cultivar No. 12 (breeding material of Kostiantyn variety) provided a stable significant increase at 3.2–12.4 t/ha, or 28.3–23.8 % compared to the Smarahd standard variety during three years study. On average, over the years of research, the dry matter yield of this selection number was maximal. The increase to the indicator of the Smarahd standard variety was 1.31 t/ha, or 12.00 %. The Hungarian sainfoin spread depends largely on the development of new more productive varieties with high quality and at the same time well adapted to different growing conditions. Proper selection of varieties is extremely important to solve the problem of increase in the yield and Hungarian sainfoin resistance to adverse environmental conditions. The research results revealed that seed productivity of cultivar No. 12 (breeding material of Kostiantyn variety) in the competitive variety trial was significantly higher, and the seed yield exceeded the standard variety by 0.31 t/ha, or 26.3 %. According to the research results of competitive variety trial on fodder and seed productivity of selection numbers, which were sown in 2017, it was selected the cultivar No. 12 (breeding material of Kostiantyn variety), which was characterized by high yields of fresh mass and seeds, and increased indicator of dry matter yield. Keywords: sainfoin, selection numbers, cultivar, competitive variety trail, yield, dry matter yield, seeds.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"108 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79349876","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":"Results and perspectives of selection of naked oat varieties in the Northern Steppe of Ukraine","authors":"V. Solodushko","doi":"10.31867/2523-4544/0152","DOIUrl":"https://doi.org/10.31867/2523-4544/0152","url":null,"abstract":"The results and prospects of selection of naked oat varieties in the conditions of the Northern Steppe of Ukraine were given. The problems and main directions of creating of new initial material were determined. The high-yielding, large-grain genotypes (Thousand Grain Weight was to 25.3–29.1 g) such as Abel, Rhea, Nuprime, Plater, Adam, Biloruskyi, Pushkinskyi, Hosha, Kriepysh resistant to abiotic factors were used in hybridization, and allowed to create a new hybrid combinations of naked oats. We established that the cultivars significantly differed from each other in the spikelets and grains number per plant, however not always these features quite affected the plant productivity. Thus, it is proved that the set of features such as number of spikelets in the panicle, number of grains in the spikelet and the grain size determines the plant productivity. The best initial forms of naked oats by biological and economic features were specified. The characteristics of the new initial material were highlighted, and the results of breeding work were presented. The naked oat cultivars were selected in the control nursery: Ск 1024/10, Рс 72/09, Сс 732/10, their grain yield (2.59–2.66 t/ha) significantly exceeded the standard variety (by 0, 35–0.42 t/ha) on average for 3 years. The most productive cultivars by protein content (15.9–16.2 %) were Рс 72/09, СС 1136/09, Сс 732/10 and Сп 234/10. The average yield (2.58 t/ha) of Rodonit naked oat variety exceeded the Skarb Ukrainy national standard variety by 0.33 t/ha or by 14.7 % according to the three-year competitive variety test. Since 2019, Rodonit has been understate variety testing. The protein content of 16.1 % and the starch of 49.0 % were in the grain, and the number of hulled grains did not exceed 3.0 %. The growing season of Rodonit variety was 91 days which was three days longer than the standard variety. Key words: oat, variety, hybridization, selection, yield, hybrid combinations.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86026703","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":"Features of accumulation and consumption of soluble carbohydrates by plants of soft winter wheat varieties","authors":"O. M. Drumova","doi":"10.31867/2523-4544/0158","DOIUrl":"https://doi.org/10.31867/2523-4544/0158","url":null,"abstract":"The results of three-year research (2016–2019) conducted in the fields of the State Enterprise Experimental Farm \"Dnipro\" of the SЕ Institute of Grain Crops of NAAS of Ukraine with soft winter wheat was presented. The soft winter wheat was placed on black fallow (on background of N30P60K30) and after sunflower (on background of N60P60K60). It was found that winter wheat plants had a not the same ability to accumulate soluble carbohydrates in years with different weather conditions. The analysis of plant samples showed that the largest number of these substances had synthesized in the autumn 2017. It was found that in the plots with black fallow during the period from November 20, 2017 to January 10, 2018, the amount of soluble carbohydrates (total amount of mono- and disaccharides) in the tillering nodes of winter wheat plants of Uzhynok variety decreased from 41.2 % to 34.7 % (by 6.5 %), Nyva Odeska variety – from 43.9 % to 32.7 % (by 11.2 %), Kokhanka variety – from 45.0 % to 42.6 % (only by 2.4 %). From January 10 until the resumption of spring vegetation, the carbohydrates were consumed most intensively by plants of the Uzhynok and Kokhanka varieties. It was found that despite the lower doses of mineral fertilizers applied to presowing cultivation, winter wheat plants accumulated more soluble carbohydrates in all years after black fallow than after sunflower. On average for three years of research, the highest consumption of sugars during the winter both in leaves and in tillering nodes, regardless of the forecrop, was observed in plants of the Uzhynok variety. It was found that the winter wheat plants of Kokhanka variety consumed soluble carbohydrates more economically than the Uzhynok and Nyva Odeska varieties, and grew more intensively in early spring. The content of sugars in the tillering nodes of Kokhanka variety during resumption of spring vegetation was 28.4 % for black fallow and 25.9 % after non-fallow forecrop. Key words: winter wheat, variety, soluble carbohydrates, forecrop, background of nutrition.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84582069","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":"Maize grain yield formation depending on macro- and microfertilizers","authors":"M. Dudka, O. P. Yakunin, O. Kovtun, O. Hladkyi","doi":"10.31867/2523-4544/0157","DOIUrl":"https://doi.org/10.31867/2523-4544/0157","url":null,"abstract":"The research results of the foliar fertilization influence with different levels of mineral nutrition on the maize grain yield were presented, and the economic efficiency of growing of grain products was clarified. It was found that when increasing the mineral fertilizer dose from N30P30K30 to N45P45K45 and N60P60K60, the height of plants increased by 3 and 7 cm, the leaf surface area of one plant – by 4.8 and 10.9 %, respectively. Due to foliar fertilization, the height of plants increased by 2–5 cm, and the leaf area changed insignificantly. Depending on the background of mineral nutrition, it was accounted 98–99 ears per 100 maize plants, and in the case of foliar fertilization – 98–100 ears. The maize grain yield on the background of N30P30K30 was 7.56 t/ha, on the background of N45P45K45 and N60P60K60 – 8.65 and 8.68 t/ha, respectively. In the control variant (without spraying) the yield was 7.77 t/ha, and when plants fertilizing with urea (15 kg/ha) – 8.09 t/ha. The grain yield in the variants with maize plant fertilizing with a mixture of urea and micronutrients reached to 8.30–8.78 t/ha. The prime cost of 1 ton of maize grain when growing on the background of N30P30K30 was 1808 UAH, with increasing the fertilizer dose to N45P45K45 and N60P60K60 – 1781 and 1903 UAH, respectively. In the control variant, it was equal to 1828 UAH, in the variants under maize fertilization with urea (15 kg/ha) or a mixture of urea and micronutrients – 1827–1836 UAH. The conditional profit on the background of N30P30K30 was 21878 UAH/ha, it enlarged to 24264–25265 UAH/ha in the case of fertilizer dose increasing. In the control variant (without spraying) the conditional profit was equal to 22310 UAH/ha, when plants were fertilized with urea (15 kg/ha) – 23257 UAH/ha, with a mixture of urea and micronutrients – 23823–25155 UAH/ha. The highest level of profitability (163.9 %) was on the background of N45P45K45; the impact of foliar fertilization on this indicator was insignificant. Key words: maize, fertilizers, foliar fertilization, grain yield, economic efficiency.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86208364","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":"Resistance of modern maize hybrids to smut diseases in the conditions of the Northern Steppe of Ukraine","authors":"T. M. Pedash, V. Sudak, T. V. Gyrka, M. P. Yavdoshchenko","doi":"10.31867/2523-4544/0170","DOIUrl":"https://doi.org/10.31867/2523-4544/0170","url":null,"abstract":"The research results of the resistance determination of the maize hybrids (Zea mays L.) of different maturity groups to the affection by boil (Ustilago zeae (Beckm.) Unger) and kernel (Sphacelotheca reiliana (Ruhn) Clint) smuts in the Northern Steppe of Ukraine were provided. During 2016–2018, the experiments were conducted in the fields of the State Enterprise “Experimental Farm “Dnipro” of the State Enterprise Institute of Grain Crops of NAAS. The assessment scale of maize hybrids resistance to smut was given. Over the years of research, 52 samples were analyzed. It was found that the common boil smut was widely distributed in 2016, when the hybrids disease average was 2.7 %; only on plants of DN Burshtyn medium-ripe hybrid the infection was not detected. 2017 was unfavorable for the spread of the disease: only 23 % of maize hybrids of medium-ripe and medium-late ripening groups had smut tumor, the average disease degree was 0.4 %. In 2018, half of the studied samples showed no boil smut symptoms, the average degree of disease was 0.9 %, and DN Galateia middle-early hybrid had a maximum degree of disease – 6.7 %. The analysis of the received data testifies that for years of researches there were most resistant to affection by boil smut such hybrids as: DB Lada, DN Rubin, Dniprovskyi 181 SV, DN Adzhamka, DN Burshtyn, DN Veles, DN Astra, DN Sarmat, DN Bulat, DN Palanok and DN Dnipro, and they belonged to different maturity groups. According to the hybrids resistance scale to boil smut, all studied samples were highly resistant and resistant. The tumor was the most often found on the ears, less often on the stems and other parts of the plant. Regarding kernel smut, the survey results indicated a tendency to increase of the disease spread level in the Northern Steppe. In 2016 a 40 % of hybrid samples was affected by kernel smut with an average affection of 0.9 %; in 2017 these indicators were 71.0 and 3.7 %, and in 2018 – 86.0 and 5.9 %, respectively. Over the years of research, it was determined that the DN Astra middle-early hybrid is the most resistant to kernel smut compared to plants of DN Palanok, DN Vesta, DN Demetra, DN Bulat and Pochaivskyi 190 MV hybrids, which were affected annually. According to the hybrids resistance scale to kernel smut, it was found that in 2016 all samples were in the highly resistant group, and the disease degree did not exceed 10 %. In 2017, more than 10 % of plants of DN Adzhamka, DN Vesta, DN Hetera and DN Nazar hybrids were affected, so they were classified as resistant forms, other samples – as highly resistant. In 2018, only the DN Palanok hybrid was estimated as medium-resistant, 6 hybrids (DB Lada, Pochaiivskyi 190 MV, Nur, Korund, DN Galateia, DN Dnipro) belonged to the resistant group, the rest – to the highly resistant group. Regarding the affected hybrid plants, kernel smut was mainly detected on the ears and partly on the panicles (sometimes simultaneously). It was found that 2016 was favorable for the","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82173902","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 of grain sorghum at application of post-emergence herbicides","authors":"Ya.V. Alieksieiev, S. Semenov, A. G. Lyubchich, R. E. Grishchenko, O. Glieva","doi":"10.31867/2523-4544/0159","DOIUrl":"https://doi.org/10.31867/2523-4544/0159","url":null,"abstract":"During the four-year field experiments, the influence of post-emergence herbicides such as Pik, Prima and Grantox on the phytosanitary state of grain sorghum crops and the formation the grain productivity of plants was established. It was found that the applied chemicals did not affect the main stages of ontogenesis by sorghum plants. The use of the active ingredient of Prima and Grantox led to a decrease the linear growth of plants. The height of sorghum plants with increasing the application dose of Prima decreased from 101.7 to 98.5 cm. When increasing the dose of Grantox, the toxic effect of the active ingredient on sorghum plants increased, as a result their height decreased significantly from 103.1 to 98.1 cm. With regard to the Pik herbicide, with increasing of application doze, the plant height increased from 105.5 to 107.9 cm. Due to the use of the application dose of 20 g/ha, the highest grain yield of sorghum was obtained (4.04 t/ha). It is only 0.22 t/ha less compared to the variants where weeds were removed manually. These results indicate a significant effect of the Pik herbicide on weeds and weak phytotoxicity against sorghum plants. When using the Prima herbicide, it was observed activation of tillering with a slight decrease in the number of panicles. All studied herbicides were characterized by high efficiency against dicotyledonous weeds: Grantox – 78.0–86.2 %, Prima – 75.4–83.1 %, Pik – 80.6–89.3 %. Despite the different phytotoxic effect on plants, grain productivity of grain sorghum increased due to the application of post-emergence herbicides compared to plots with natural weed infestation: Prima – by 0.66–0.92 t/ha, Grantox – by 0.60–0.97 t/ha, Pik – by 1.02–1.40 t/ha . Based on the research, it was found that the application of Pik herbicide in dose of 15–20 g/ha at the 4–5 leaf stage of sorghum was safest for plants and the most effective for the control of dicotyledonous weeds. Key words: grain sorghum, growth and development, weeds, herbicide, yield.","PeriodicalId":23071,"journal":{"name":"The Scientific Journal Grain Crops","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73949646","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}