Abstract

The purpose of the present study was to determine the parameters of adaptability and yield stability in potato hybrids under different agroclimatic conditions for the identification of the genotypes that were mostly adaptive to agroclimatic conditions of Samarskaya oblast. The analysis of genotype general adaptability and stability was performed for nine promising hybrids by the method of Kilchevskiy-Khotyleva. The authors identified the hybrids that had high parameter values. The hybrids 1600-6/6P and 45502 were characterized by maximal selection genotype value for yield performance and average tuber weight (ATW) due to the high stability of these features. The maximal selection genotype value for the number of tubers per plant was observed in 4550-4 hybrid. Hybrid 1600-6/6P was characterized by the optimal ratio of yield components and showed maximal selection value for general yield performance. The specified genotypes can be recommended for breeding of new potato hybrids with the highest adaptivity to agroecological conditions of Samarskaya oblast and Middle Volga Region.