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Information × Registration Number 0225U005136, (0121U108629) , R & D reports Title Theoretical substantiation of agrobiological regularities of formation of seeds of new hybrids of corn of various models, development of methods of postharvest processing, storage and testing of quality of sowing material. popup.stage_title Теоретичне обґрунтування агробіологічних закономірностей формування насіння нових гібридів кукурудзи різних моделей, розроблення методів післязбиральної обробки, зберігання та випробовування якості посівного матеріалу Head Kyrpa Mykola Ya., Доктор сільськогосподарських наук Registration Date 26-12-2025 Organization State Institution "Institute of Grain Crops" of the National Academy of Agrarian Sciences of Ukraine popup.description1 To develop a method for testing the seed quality of new maize hybrids of different models and to establish indicators of their agrobiological and technical-technological regularities popup.description2 Relevance of the work. Modern new corn hybrids are characterized by various agrobiological properties and technical and technological indicators that should be taken into account in the technologies of their harvesting, post-harvest processing and storage, which has not been studied sufficiently. Materials and methods of research. The methods included laboratory, field and experimental research in compliance with the requirements of state standards DSTU 2240, DSTU 2949, DSTU 4138, DSTU 4525. The research material was new corn hybrids selected by the State Institute of Crop Protection and Crop Protection of the National Academy of Sciences of the Ukraine. Research results. A new method for testing the sowing suitability of corn hybrid seeds has been developed, which includes germination energy, growth force, germination by the standard and cold germination method, leveling, and injury. The process of drying corn seeds has been studied based on identifying the varietal heat resistance of new hybrids and the rational use of heat resources. A method of fractional seed separation has been developed, which includes technological modes, selection and standard size of sieves on the example of hybrids DB Tiras, DN Kiyakha, DN Khotyn, DB Khortytsia, DN Eirena, DN Atlant, DN Sarmat. For the first time, the biological and technological stability of corn hybrids of different biotypes has been revealed, and a method for their long-term storage has been developed. Conclusions. Scientific and methodological recommendations are offered that take into account the agrobiological regularities of seed formation and new methods of its collection, drying and separation. The energy-saving drying method reduces fuel consumption by 20%, electricity by 15%. The new method of fractional separation increases the yield of high-quality seed by 5–8% and increases the yield of corn grain on marketable areas by 0.8–1.2 t/ha. The method of long-term storage ensures the preservation of insurance, rese Product Description popup.authors Mykola Y. Kyrpa Oksana I. Lupitko Yuliia S. Bazilieva Viktor O. Kulyk Denys V. Bershov Tatyana N. Lukyanenko Volodymyr M. Kyrpa Olga Y. Loy Olga A. Semenkova Vitaliy O. Tereshchenko Igor I. Buryak popup.nrat_date 2025-12-26 Close