Search academic texts

Information × Registration Number 0225U002331, (0121U108854) , R & D reports Title Screening of the initial material of fiber flax on the adaptability traits and technological qualities of the fiber in order to develop a high-yielding variety in conditions of climatic fluctuations popup.stage_title Перевірка достовірності оцінки та об'єктивності відбору в різних системах стандартів у конкурсному випробуванні. Попереднє розмноження перспективних номерів Head Mironchuk Volodymyr P., Кандидат сільськогосподарських наук Registration Date 04-03-2025 Organization National scientific centre "Institute of Agriculture of the Ukrainian Academy of Agrarian Sciences" popup.description1 The aim of the project is to study the initial material of long flax according to technological parameters to select promising samples and involve them in the breeding process to create a variety with high technological qualities of fiber and stable over the years. To implement the project, research will be conducted on various breeding samples on economically valuable features (plant height, number of boxes, weight of 1000 seeds, fiber yield). To achieve this goal, the nature of the manifestation of important economic and valuable traits in various genotypes, the influence of agroclimatic factors on the manifestation of traits of different genotypes will be determined. Despite the fact that the area under the fiber flax is rapidly declining, there is no alternative to this culture. This is evidenced by the high demand for flax production. Therefore, the selective improvement of the gene pool of long flax and the creation of new varieties is an important area of work and should continue. Therefore, it is important to study the genetic resources of the national collection of long flax in order to select samples with the optimal combination of economically valuable traits to involve in further breeding work. According to the results of studying the interaction of genetic systems in the control of quantitative traits in long flax, a new genetic potential will be created for further development of selection and breeding of a new generation of high-yielding varieties. popup.description2 The object of research - varieties and samples of the collection nursery and other categories of nurseries in the selection process of flax. The purpose of the study: Creation of new source material on the basis of intraspecific and interspecific hybridization and study of the nature of inheritance of basic traits and selection of new forms for further selection work. The main research methods: measuring and weighing, calculation and comparison, statistical, variance and regression - to determine the reliability of the results of experiments. The main results of the work. In the selection and collection nurseries, new selection material with programmed productivity indicators and selection samples with increased seed productivity, yield of straw, fiber and its content in stems were selected, studied and created, which will be used in further selection for the breeding of new varieties of flax. In the preliminary variety test, 3 samples were selected (Kyivskyi/Viking, Aleksym/Lyder, (K-6/T-10)/Mog.2) exceeded the standard Gladiator variety in fiber yield by 0.13-0.32 t/ha (Gladiator standard 1.08 t/ha), and the Marina/Ariane sample exceeded the Zorya 87 standard in seed yield by 0.07 t/ha (1.06 t/ha). According to the results of the competitive variety test, selection samples were selected that exceed the standard Gladiator variety in fiber yield (Ariane/Irma and Kyiv./Strunk) and the Zorya 87 standard in seed yield (Ukr. 2 / Giane, Ariane / Irma, Marina / Mog.2). Product Description popup.authors Kondratiuk Viktor V. Kopach Zoia I. Pyvovar Tetiana M. Tymoshenko Oleksandr O. popup.nrat_date 2025-03-04 Close