[Life expectency and fertility of postembrio stage drosophila after the pulse-periodic X-ray irradiation].

The effect of 13 Hz repetition rate X-ray pulses with 3 x 10(-6)-1.5 x 10(-4) Gr per pulse dose during 5 minute on drosophila's larvae and on pupae vas investigated. It was shown that the effect depends on drosophila's age as well as on X-ray dose and manifests itself in variation of life expectancy and fertility.