Przebieg wegetacji oraz charakterystyka wybranych cech soi w warunkach klimatycznych Polski [Development and characteristics of selected soybean traits under the climatic conditions of Poland]

Abstract

Trials with 200 soybean mutants from GDR revealed, that only 34 (17%) of them ripened under the conditions of Central Poland. There results corrborate the frequent opinion about the poor adaptability of this species. The length of the vegetation period of the tested mutants was between 146 and 163 days, with wide differences in various years of testing. Mutants: M-4855, M-4961, M-4149 and M-4852 had short vegetation period therefore there are interesting for breeders. These mutants together with other forms with a longer vegetation period but characterized by other desirable traits could be used as components in breeding programmes. The variability of many characters was highly affected by the environment. Morphological traits being more stable and determined by the genotype. Protein and fat content in seeds from the tested materials were within the limits commonly found in soybean seeds in Poland.