Knap N. Productivity of potato depending on varietal peculiarities and quality of planting material under conditions of Transcarpatia

The thesis is devoted to the aspects of improvement of cultivation technology, research of agrobiological grounds of potato yield formation under conditions of the Ukrainian Transcarpathia and development of resource-saving cultivation technology. Morpho-physiological features of formation and realization of productivity potential and qualitative indicators of potato varieties production depending on ecological and technological factors are defined. Characteristics of influence of studies elements of cultivation technology on the main elements including system of sowing rates, quality of seed materials were established. Optimal parameters and regularity of potato yield structure elements formation under the influence of agrotechnical measures such as general survival, general number of stems, tillering rate, and weight of potato per plant 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 potato, elements of harvest structure, economic and energy evaluation of individual agricultural measures and resource-saving technology are researched.