[An ecological and geographical test of the seed offspring of Viola matutina Klok. from a 30-kilometer area of the accident at the Chernobyl Atomic Electric Power Station].

The generation of seeds of two populations of Viola matutina Klok. sampled from plants growing within the thirty-kilometers zone of the Chernobyl accident (the reproduction of seeds in 1988) was investigated in the north nursery in Syktyvkar. The decrease of sterile pollen and embryonic lethality among the plants from the strongly contaminated site (exposure rate (1075-1434) pC/(kg.s) May 1987) was registered. It is suggested that this phenomenon is the result of the elimination of genetic damages in the course of seed forming in this population under radiation stress.