Effect of ecological growing conditions on productivity stability and plasticity of male sterile hybrids of sugar beets

Abstract

Adaptive potential of new MS (male sterile) hybrids of sugar beets, developed with tetraploid pollinators of Bila Tserkva selection depending on soil-climatic conditions of the growing area, was studied. The most plastic and stable promising hybrids in a wide range of ecological growing conditions were singled out by regions. Due to high plasticity, new MS hybrids are well adapted to limiting factors of life support and stressful events in various soil-climatic zones; they have high root crop capacity, sugar content and yield. The most valuable hybrids for cultivation are those whose stability coefficient exceeds 70 %. The research results prove that all the studied MS hybrids correspond to this level both by the level of root crop capacity and sugar content and yield per area unit.