Abstract. Sugar beet (Beta vulgaris var. saccharifera) is the culture used for crystal sugar production in the countries with moderate climate. It could be used as excellent succulent forage for ruminants and for preparation of sweet juice. Recently there has been an increasing interest in beets raw material for use in the bioethanol and biogas production. An assessment of the ecological plasticity of sugar beet varieties and hybrids has been made in the period 2008-2011. The tested diploid and triploid hybrids show stable high productivity in irrigation and non-irrigation conditions in different regions of the country, they are distinguished and uniform regarding the technological qualities.