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Publikováno v:
Environmental and Experimental Botany. 38:87-97
Nigella damascena dry seeds were irradiated with X-rays (250 kV) at fractionated exposures (2 × 40 and 2 × 20 Gy) separated by time intervals ranging from 120 to 240 s. A decrease of chromosome aberrations (threshold) observed with 60Co γ-rays bet