Phenotypic, Genotypic and Environmental Correlations between Fruit Characteristics Confirming Suitability to Juice Extraction in F1 Apple Hybrids

Abstract. The objective pursued by the research are materialized in the following aspects: calculation of phenotypic (rp), genotypic (rG) and environmental (rE) correlations between all pairs that can form with the twelve traits studied in order to reveal the likely in tandem selection possibilities of certain traits of interest in juice production with F1 hybrids. The phenotypic, genotypic and that of surrounding correlations between the character pairs resulting from the combination of the twelve characters studied, constitute an extremely valuable pointer to illustrate tandem-selection possibilities. With the apple, one longevous species with a relatively late entering into fruition, such data are of extreme importance as it is rather difficult that selection for two or more characters be made in differing generations for each of these traits