Abstract
Goal. To create a new ideatype of oilseed flax, which will increase seed production in the Forest-Steppe with high yields, seed quality, and disease resistance. Methods. Field method — to determine the interaction of the subject of research with natural and agronomic factors; measuring and weighing — to determine the height of plants, yields of straw, fiber, seeds; settlement-comparative — for the economic evaluation of cultivation of different varieties of flax; statistical, dispersion — to identify the reliability of the results of experiments. Results. Based on field researches of the registered modern varieties of oil flax the key economically valuable signs which were used for the creation of a selection ideatype of a variety of oil flax adapted to the Forest-Steppe zone are allocated. Valuable selection lines of oil flax, which have a set of valuable features and significantly exceed the variety standard for productivity, are selected according to the main parameters of the ideatype in the selection process. Conclusions. Based on field researches and data of laboratory analysis the selection ideatype of a variety of oil flax adapted to conditions of the Forest-Steppe zone is developed. The proposed model can be used at the preparatory stage of selection — in the selection of parental forms for crossing, and directly in the selection process — in the selection of plants among different generations of hybrids in selection nurseries, and in the assessment of the resistance of varieties to biotic and abiotic factors, which was used in selection work of the NSC “Institute of Agriculture of NAAS”.
Highlights
Flax oil has valuable nutritional and medicinal properties and has a positive effect on human health, it is widely used in the oil paint industry
We studied the varieties: Evrika, Blakytno-Pomarachevyi, Oryginal, Sympatyk, which are included in the Register of plant varieties allowed for use in Ukraine, and 8 breeding lines of the nursery of competitive variety testing, according to the parameters of the yield structure, biochemical characteristics, height, lodging, and diseases resistance
We studied the biochemical characteristics of flax, such as oil content, the fatty acid content in oil, protein content, as well as resistance to lodging, and Fusarium
Summary
Flax oil has valuable nutritional and medicinal properties and has a positive effect on human health (in the prevention of cardiovascular diseases), it is widely used in the oil paint industry. Modern flax varieties differ significantly from wild forms since genotypes with high yield, oil content, and resistance to biotic and abiotic factors were selected during the breeding process [3]. The yield of seeds of oilseed flax varieties in high agriculture conditions is 0.3 – 0.5 t/ha higher than that of fiber flax. In the existing selection triad "what to select?"(variety model), "how to select?" (breeding theory), and "from what to select?"(polymorphism) it is the first link that has been least studied [11] To solve this problem, the breeder develops a whole system of traits that have a decisive impact on the productivity potential of a genotype created as a result of several breeding cycles [11]. Based on the knowledge of plant biology, the nature of inheritance of individual traits, it is necessary to involve in the breeding process genotypes that most effectively and positively respond to the cultivation technology created by the agronomist [10]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
