Abstract

In 2017-2019, the ecological trial was conducted on the experimental fields of the Siberian experimental station, branch of VNIIMK. The study object was varieties and hybrids of spring rapeseed of breeding of VNIIMK, VNIIR and other breeding institutions which are presented by 17 samples of 15 varieties: Yubileyny – standard, Kupol, Granit, 55 region (the Siberian experimental station, branch of FSBSI FSC VNIIMK), Tavrion, Viking, Ruyan, Amulet (FSBSI FSC VNIIMK), Forward, Flagman, Antares, Sirius (FSBSI VNIIR), Highlight, Kampino, Hunter (Germany) and 2 hybrids: Ozorno, Salsa (Germany). The goal of research is to study the biological potential of spring rapeseed varieties and hybrids in the conditions of Western Siberia; on the basis of field experiments and laboratory analyzes, to identify the highly productive varieties and hybrids suitable for cultivation in the Siberian region. Varieties (Highlight, Kampino) and hybrids (Ozorno, Salsa) of foreign breeding were selected wit high seed yield (2.45-2.57 t/ha) on the average for three years. In the conditions of Western Siberia, the breeding varieties of the Siberian experimental station are the most interesting in terms of yield and oil content of seeds: Granit (2.33 t/ha, 51.2 %), Kupol (2.43 t/ha, 51.7 %), and 55region (2.36 t/ha, 52.1 %), which compete well with varieties and hybrids of foreign breeding. Varieties Antares, Highlight, Hunter are characterized by a short growth season (80-81 days), which is important for the development of new parent material in the conditions of Western Siberia. The content of glucosinolates in the seeds of all studied varieties and hybrids meets the requirements of interstate standards. Variety Amulet is characterized by the improved fatty-acid composition of oil (the content of oleic acid is 75.2-77.5 %).