[The effects of the distance interaction of the exposed and unexposed plants].

The effects of the distance interaction between the irradiated and unirradiated corn plants in the conditions of water culture were investigated. The change of biological and radiobiological reactions (radioadaptation) is shown at the helped unexposed plants, and also oppressing, as compared to the exposed homogeneous culture, similar indexes at the exposed plants from mixed culture.

[Irradiation as a test-factor revealing dark DNA repair capacity of seeds].

Dark repair of DNA was studied in embryos excised from the advanced sugar beet seeds. Significant increase (from 19 to 321%) in the level of dark DNA repair has been established for all studied conditions of the advanced treatment. Acute -irradiation has been used to investigate the ability of advanced seeds to repair additional DNA damages caused by a standard irradiation dose.