Nitrogen Fixation Ability in Root Zone of Perspective National Varieties of Spring Triticale

Abstract

Potential activity of nitrogen fixation on washed roots of investigated varieties of spring triticale determined in field experiments has characterized by considerable fluctuations both during single phenophase in different years of research and throughout the vegetative period, that was caused by the influence of environment factors as well as by the existence of variability within the cultivar. The cultivar Oberig kharkovsky possesses the considerable polymorphism by the nitrogen fixation activity index in root zone of plants. Presowing inoculation of triticale seeds with active strain Azospirillum sp. 10 results in the increase of number of plants with higher nitrogen fixation activity on the washed roots.