Bragin O. The creation of original material and sunflower hybrids with high content of palmitic acid flycerides of oil

Object: improvement of oil fatty-acid composition at sunflower heterotic breeding. Aim: to establish some peculiarities of accumulation of palmitic acid glyceride content in oil from the seed of different mutant specimens and to develop a new original material and hybrids of sunflower of a palmitic type. Methods: field, laboratory, statistical. Novelty: for the first time in Ukraine a scale for classification of sunflower mutant lines as to the content of palmitic acid glycerides is elaborated. Some special features in the dynamics of accumulation of palmitic acid glycerides in oil during seed maturing are determined. Some peculiarities in the nature of inheritance for an increased content of glycerides of palmitic acid in sunflower oil at crossing of palmitic lines with oleic, stearic and linoleic ones are revealed. Results: 7 mutant lines-maintainers of sterility and 4 lines-restorers of sunflower pollen fertility with an increased content of palmitic acid glycerides (from 12,43 to 36,47 %), and 4 hybrids of sunflower differing by the increased content of palmitic acid glicerides in oil, high productivity, adaptability and competitive ability are created. Application stage: in the National genebank of plants of Ukraine 6 mutant lines are registered. In 2009 we got a patent for the mutant line Mh 1008 V. A useful model is elaborated "Method for sunflower inbred lines development with increased content of palmitic acid glycerides" is introduced into breeding programs of the institute. The hybrid Kapral has entered the State Variety List suitable for distribution in Ukraine since 2008. Application area: breeding institutions.