The object of the research: selection value linseed samples, variability patterns, relationships, inheritance and heritability of economic traits in specimens obtained and based on these hybrids under different growing conditions. The aim: definition of breeding value sample collection of linseed and isolating sources of business signs, identification of variability and relationships of breeding traits linseed different ecological and geographical origin, the establishment of inheritance and heritability of important breeding traits, creating a valuable raw material for use in the selection process in the arid conditions of Steppe of Ukraine and the creation of new varieties. The methods: field, hybridological, measuring and weighing, biochemical, statistical. The novelty: the first time in the conditions of southern Steppe of Ukraine conducted complex investigations to determine the breeding value linseed samples various eco-geographical origin on the basic economic characteristics. Allocated resources for individual and complex traits and formed a indicative of a collection of linseed. Defined attributes, which is positively correlated with the weight of seed plants. Revealed stable data attributes, for which selection is effective. Determined the combination with a high level of heterosis in terms of productivity elements, which are promising for breeding use. The high degree of genetic traits conditioning number of seeds in a box and 1000 seeds weight and high efficiency of selection on them. The efficiency of the varieties that are based on the selected source of valuable features. The results: isolated sources of business signs. Was formed and registered with the National center for genetic resources of Ukraine collection of plants indicative of linseed. The analytical model of varieties with high seed productivity, which is determined by a combination of structural elements of seed production plant. Donor properties of the samples determined on the basis of earliness, high oil content, a large number of bolls per plant, a high content of linolenic acid in the oil. Created in collaboration seven varieties linseed, four of which are included in the State Register of plant varieties suitable for dissemination in Ukraine. The degree of the implementation: collection of flax used in breeding programs breeding laboratory flax Institute of Oil Crops of NAAS. Grades Debut, Orpheus, Vodograi used in genetic research and breeding programs Institute of Agriculture of NAAS and other research institutions. Created varieties of flax, made in the Register of varieties of flax, wide introduced into production. The sphere of the implementation: academic institutions of NAAS and the Ministry of Agrarian Policy and Food of Ukraine, higher educational establishments, agroformations of APC of Ukraine
