Argir Zhivondov1, Neli Keranova2 and Svetla Pandova1
1 Agricultural Academy, Fruit Growing Institute-Plovdiv, 4004 Plovdiv, Bulgaria
2 Agricultural University, Faculty of Economics, Department of Mathematics and Informatics, 4000 Plovdiv, Bulgaria
Zhivondov, A., Keranova, N. & Pandova, S. (2020). Grouping and evaluation of cornel-tree varieties according to some pomological indicators. Bulg. J. Agric. Sci., 26 (5), 988–991
The subject of this study is the following genotypes of cornel-tree: Pancharevski cylindrical, Atkov, Kazanlashki pear-shaped, Vrachanski (Castel), Shandrian, Tsarigradski yellow, Yellow Hadzhiyski, Shumenski oblong and Yaltenski. They were grouped and assessed according to their genetic remoteness with respect to the pomological parameters: weight (g), length (mm) and width (mm) of the fruit as well as length of the stem (mm), weight (g), length (mm) and width (mm) of the stone. Hierarchical cluster analysis and factor analysis were applied for the processing of the experimental data. As a result of analyzes, the studied genotypes were found to be grouped into four clusters. The main indicators influencing the genotyping are: length of the fruit, length of the stem, weight and the length of the stone. The most distant genetically are Yaltenski and Shumenski oblong, on one side, and Pancharevski cylindrical and Atkov, on the other.