Correlation of productivity of hybrid peach forms of the Nikitsky Botanical Gardens’ breeding with biotic and abiotic factors

Abstract

The article shows the relationship of the yield of four promising forms of peach with its most limiting factors. The equations of multiple regression are also presented, which allow us to predict the yield of the studied forms. In form Veteran free pollination the coefficient of multiple regression was R = 0.95, the coefficient of multiple determination was R2 = 0.90; in the hybrid form Zlatogor x Uspar-1 80-367, respectively, 0.99 and 0.98; in the form Lauréat x Zlatogor 73-3 - 0.96 and 0.92; the form (Podarok Kryma free pollination x Tovarishch) 85-104 - 0.98 and 0.96. These coefficients show the degree of dependence between productivity and factors included in the study. Selected hybrid forms should be used in breeding for adaptability to improve the existing assortment of peach. The hybrid form Veteran free pollination was transferred to the State Commission of the Russian Federation, as a cultivar Sarabuz, which is of interest for breeding and production as a promising table cultivar with fruits of medium ripening time.