[Partial sterility of the pine tree in 1986 and 1987 in the vicinity of the Chernobyl nuclear power station].

Reproductive potency of Pinus silvestris was studied in 1986, and 1987 within the zone of Chernobyl accident by the estimates of the survival rate of seed-buds during the gametophyte and embryonal development. At the radiation level of 4 Gy a partial female pine sterility was manifested by the decreased gametophyte survival rate of seedbuds, pollinated in 1986, and by the diminished embryonal survival rate of seed-buds pollinated in 1985.