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Brazilian Archives of Biology and Technology
Print version ISSN 1516-8913
MRATINIć, Evica and AKšIć, Milica Fotirić. Phenotypic Diversity of Apple (Malus sp.) Germplasm in South Serbia. Braz. arch. biol. technol. [online]. 2012, vol.55, n.3, pp.349-358. ISSN 1516-8913. http://dx.doi.org/10.1590/S1516-89132012000300004.
To determine the overall degree of polymorphism, detect similarities among the accessions and collect highly valued genotypes of native apples, 21 characters of 18 autochthonous apple cultivars were studied for three years. Particular individual accessions were selected from the south region of Serbia according to economically valuable characters and tested in situ. Agronomic evaluation of germplasm accessions revealed considerable diversity among different accessions for all the characters studied. The analysis of variance revealed significant differences among the accessions and among years for some characters as well. Cluster analysis distinguished Malus sp. accessions into three distinct groups. Despite of the significant differences among the accessions, yield and fruit weight were a clear separation between the clusters. Among the germplasm of a small geographic area, it was possible to find the cultivars with valuable morphological traits that could be immediately distributed to the market or employed in breeding programs.
Keywords : apple; cluster analysis; diversity; genetic resources.