Abstract

The aim of this study is to compare the suitability of Bennett’s and Miller’s statistical methods, respectively, for analysis of oilseed rape varietal uniformity. In both methods, coefficient of variation for evaluation of the uniformity of crop varieties was used. In order to test the suitability of the above mentioned statistical methods for analyzing the varietal uniformity in spring oilseed rape, the quantitative trait (plant height) was used. The same plant feature is also used as the obligatory plant characteristic during the official oilseed Distinctness, Uniformity, Stability (DUS) testing before variety registration in the Research Centre for Cultivar Testing (COBORU). The results of the study demonstrated that, the Miller’s method is more restrictive (less varieties were found to be uniform in plant height) compared to the Bennett’s method.

Key words: Bennett’s methods, coefficient of variation, oilseed rape, Miller’s methods, uniformity.