Introduction. Rapeseed is a facultative autogamous plant; its percentage of cross-pollination is 10–50%, so rapeseed breeding engages the line and population breeding methods as well as the development of hybrids and all innovative research approaches.Material and methods. Among the main techniques used for the development of parent material and, eventually, cultivars at the Pustovoit Institute (VNIIMK) is the pedigree method (individual selection from intraspecific and interspecific hybrid populations, combined with inbreeding). Physical and chemical mutagenesis is also employed in rapeseed breeding at VNIIMK. The material with yellow-colored seed coat has been obtained by exposing rapeseed seeds to various doses of gamma rays (50, 100 and 150 kR). Seed treatment with chemical mutagens is primarily aimed at changing the fatty acid composition of oil.Results. Breeding achievements for winter and spring rapeseed, registered by VNIIMK in the State Register of Breeding Achievements of the Russian Federation over the past 15 years, are highly productive line cultivars with a seed yield of 4–5 t/ha for winter rapeseed, and 2–3 t/ha for spring rapeseed. Promising experimental interline hybrids, significantly exceeding the reference in seed yield (by 1.61–2.26 t/ha), have been developed. Yellowseeded lines, which exceed the black-seeded reference cv. ‘Tavrion’ in seed yield by 0.08–0.15 t/ha, have been selected. We developed the material with an oleic acid level of 78.9– 80.5%.
Introduction. The V.S. Pustovoit All-Russian Research Institute of Oil Crops (VNIIMK) performs the breeding of interline rapeseed hybrids using the Ogura CMS. The program of interline winter rapeseed hybrid development was aimed at studying the efficiency of self-pollinated line breeding from population cultivars, assessing the impact of inbreeding depression on economically important traits, analyzing the changes in the lines’ traits after their transition to the sterile basis, and obtaining fertility restorer lines with an acceptable level of glucosinolate content in seeds.Materials and methods. Intraspecific hybrids, cultivars developed at the Pustovoit Institute and those of foreign breeding were employed as parent material for the development of self-pollinated lines. Self-pollination of rapeseed plants was performed using spunbond isolators. Over 1000 plants were self-pollinated every year. Generations of self-pollinated lines S1 –S4 were planted on 2.25 m2 plots, and during the growth season their visual screening was undertaken to assess their morphobiological traits. Starting with S5, the lines were evaluated for their yield on 7.5 m2 plots.Results. The inbreeding depression was found to not exceed 3–15% of the seed yield. The transition of the lines to sterile cytoplasm did not have any negative consequences. A series of experimental hybrids were developed, exceeding the reference cultivar ‘Loris’ in seed yield by 23–48%. New hybrid combinations also exceeded the reference in seed yield by 21–54%.
Селекция, семеноводство, технология возделывания и переработка сельскохозяйственных культур: материалы Международной научно-практической конференции -Краснодар: ФГБНУ «ФНЦ риса», 2021. -372 с.Предлагаемый сборник научных материалов составлен на основе представленных докладов, выступлений участников Международной научно-практической конференции «Селекция, семеноводство, технология возделывания и переработка сельскохозяйственных культур», состоявшейся в Федеральном научном центре риса (г. Краснодар) 26-27 августа 2021 года.Представленные в сборнике труды отражают результаты фундаментальных и прикладных исследований в области агропромышленного комплекса. Освещены вопросы селекции, семеноводства, генетики, биотехнологии и молекулярной биологии, защиты, технологии возделывания и переработки сельскохозяйственных культур. Большинство статей подготовлено молодыми учеными научно-исследовательских и образовательных учреждений РФ.Издание адресовано научным работникам, преподавателям, студентам, аспирантам и специалистам сельского хозяйства.
О некоторых правовы х, организационных и социально-экономических... вития города и значимость преемственности в процессе эволюции правовых и организационных основ местного самоуправления. Ключевые слова: органы местного самоуправления, устав муниципального образования, модель организационной структуры, оценка эффективности деятельности, перечень показателей, городские программы, муниципальная реформа.
Probiotic preparations were obtained on the basis of cryopreserved forms of pure cultures of L. plantarum and B. subtilis using freeze drying. The antimutagenic activity of the obtained probiotic preparations was investigated in relation to 1%, 0.1% and 0.01% concentrations of cobalt sulfate using the example of dominant lethal mutations of Drosophila. A positive antimutagenic effect of probiotic preparations was shown in relation to 0.1% and 0.01% concentrations of CoSO4 with an exposure duration of at least 3 days.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.