EN
The work aimed at determination of the share of individual components in the yield of spring barley and field bean cultivated in 1993-1995. The method applied was linear regression using (or not) the logarithmic transformation. The study revealed that yields of spring barley and field bean were determined by a number of ears and plants per 1 m². However, the mass of 1000 grains had a small share in the yield formation. Individual share of yield components in yield of barley grain was more influenced by changes in its structural traits over the years, than the corresponding share in yield of field bean seeds. Full models were the best for predicting yields of both crops using linear regression. For barley the sufficient exactness was achieved also using models with two yield components, in which the number of ears per 1 m² had to be included. The above holds as well for field bean yield, proven that logarithmic transformation of the data has been previously done.