CLASSIFICATION OF ROSE (ROSA × HYBRIDA HORT.) CULTIVARS INTO GROUPS WITH DIFFERENT RESISTANCE USING THE CLUSTERING METHOD

The paper considers possible use of the clustering method to classify rose cultivars into groups (clusters) relatively uniform in terms of resistance according to their physiological and biochemical parameters. The authors detail the stages of statistical analysis. Considering the goal, cultivar groups were allocated according to their resistance: three (resistant, medium resistant and not resistant) or two (resistant and not resistant), a certain number of clusters can be specifid – 3 or 2. As a result, it was found that with a large amount of the analyzed laboratory material it is possible to use clustering to speed up the process of classifying cultivars into groups and stimulate the processing of experimental data.