Dolgova T. Induction and manifestation of a radioadaptive response in the generations of plants with different genotypes.

Object: a radioadaptive response (RAR) of plants. Aim: to study the manifestation of a RAR in the generations of plants with different genotypes on cell and organism levels after an irradiation of dormant seeds by the adaptive and challenging doses. Methods: morphometric, cytological, cytogenetic, statistic analysis. Newness: first is shown a possibility of induction of the RAR after gamma-irradiation of dormant air-dried seeds by the adaptive and challenging doses. Results: It’s shown that the degree of the RAR manifestation depends on stimulation of the meristem cell division. It’s determined the maintenance of the RAR manifestation in the M1 and M2 generations of barley on the marks of mitotic activity, frequency of cells with the chromosome aberrations and yield’s structure. Degree of introduction: the results of the induction of RAR on the dormant air-dried seeds are received. Field of introduction: research centers, agricultural farms.