Dubovyk V. Influence of reproduction of the improved elite on seed potato productivity.

Object: the yielding and qualitative indices of different categories of the efficient potato seeds. Purpose: the determination of effectiveness of reproduction of elite, which carried out on the basis of initial material efficient by different methods and species. Methods: field trials, agrochemical, biochemical, serological and mathematical statistics. Results: the variability of productivity in reproduction process of the improved elite is determined. The equivalence of methods of improvement and kinds of seed initial material in elite seed growing is established. Terms of the effect of improvement for cultivars potato of variants groups of ripeness are determined. The mathematical models for forecasting a crop under influence of joint action of the factors: sizes of the leaf, virus infection and weather conditions are developed. Sphere of inculcation: the breeding establishments, seed-production individual and collective farms.