[Intrapopulation variability of some meadow plant species with respect to their ability to accumulate 90Sr]. / Vnutripopuliatsionnaia izmenchivost' nekotorykh vidov lugovykh rastenii po ikh sposobnosti kontsentrirovat' 90Sr.

Field and laboratory studies of different plant species revealed the presence of intraspecific polymorphism in respect of the ability to accumulate 90Sr. The populations consisted of the plants effectively and ineffectively accumulating 90Sr; the former were capable of two to thirty-seven times higher accumulation than the latter. The proportion of the plants with high accumulating ability can reach 10%. Judging by the high values of the coefficients of correlation between the laboratory and field data, the results of the 90Sr content analysis different plant species were highly concordant. Accumulation of 90Sr by plants is in direct relation to its content in soil, but within the limits of the same contamination density, and is controlled by the plant genotype.