Object: Optimization of plant growth, development and performance, stability and fulfillment of the yield potential and grain quality parameters in modern technologies of winter cereal cultivation in the Left Bank forest-steppe of Ukraine. Objective: Scientific justification of performance regulation and enhancement in winter wheat, triticale and rye grain yield and quality as well as development of agrotechnological principles of stabilization of grain production based on adaptive plant growing under the changing weather conditions of the Left Bank forest-steppe of Ukraine. Methods: General scientific, specific (field, biochemical, biometrical, comparative-computational), statistical. Novelty: The peculiarities of plant growth and development regulation, agrophytocenosis formation, winter wheat, triticale and rye grain yield and quality yield and quality of winter wheat grain, triticale and rye after different predecessors upon extremely late sowing were established for the first time; modern winter wheat varieties were identified by stability and its correlation with grain yield and quality after different predecessors, depending on fertilizers and basic cultivation methods; the peculiarities of winter wheat, triticale and rye performance under identical conditions of cultivation were determined; methods of managing the winter cereal performance, which ensure consistently high grain yields and quality upon different growing technologies and environmental conditions were specified; the growing technology elements that are adaptive to unfavorable environmental conditions were developed and rationalized; methods to increase the effectiveness of seed dressing and to reduce toxicity of dressers on winter wheat plants were specified; the economic and economic significance of different growing technology elements depending on resource provision and with due account for weather factors was rationalized. Results: The optimal parameters of the main agro-measures were established, and new approaches stabilizing the grain production under climate changes were developed in modern intensive, resource-saving and environmentally-friendly technologies of winter cereal growing. The expediency of deferring the optimal time of winter crop sowing by 10-15 days and the possibility of growing modern varieties upon extremely late sowing after late-harvested predecessors (sunflower, soybean, corn) were experimentally confirmed, which, provided that fertilization is intensified, increases the winter wheat yield on average by 40-63%, winter triticale yield - by 52-56%, winter rye - by 56-72%. Degree of Implementation: The experimental results were taken as a basis of annual scientific and methodological recommendations on winter cereal growing technologies in the forest-steppe and steppe of Ukraine and implemented on farms of the Kharkiv, Poltava and Donetsk regions on the total area of 118,000 hectares. They are used in skills upgrading programs for agribusiness specialists and are annually shown on scientific-practical seminars, meetings, Field Days, etc. Scope of Implementation: scientific institutions of NAAS and the Ministry of Agrarian Policy and Food of Ukraine, higher educational establishments, agrarian enterprises of Ukraine.
