Gonchar L. Morpho-physiological features and ways to control formation of winter wheat productivity on the Right Bank of Forest Steppe of Ukraine.

The thesis is devoted to the aspects of improvement of cultivation technology, research of agrobiological grounds of winter wheat harvest formation on the Right- Bank Forest-Steppe of Ukraine and development of resource-saving cultivation technology. Morpho-physiological features of formation and realization of productivity potential and qualitative indicators of winter wheat varieties production depending on ecological and technological factors are defined. Characteristics of influence of studies elements of cultivation technology on main elements including system of fertilization, sowing norms, usage along with traditional types of new type of fertilizer in the form of colloidal solution of nanoscale elements are identified. Optimal parameters and regularity of winter wheat yield structure elements formation of under the influence of agrotechnical measures such as overwintering, general survival, general and productive number of stems, tillering rate, length of the ear, number of ears and grains in the ear, weight of grain from the ear are defined. Interdependence between elements of harvest structure is set and ways of regulation of their parameters using elements of technology are outlined. Influence of agricultural measures on yield, quality of grain, elements of harvest structure, economic and energy evaluation of individual agricultural measures and resource-saving technology are researched.