Chipilyak T. Autecology of representatives of Hemerocallis L. genus in the conditions for the technogenic pollution.

Dissertation is devoted to research of ecological-biological features of adaptation and development of ecological-physiological adaptive reactions of species and sorts of Hemerocallis genus at pollutants influence in the conditions of Right-bank steppe Pridneprov'ya.First in the conditions of steppe Pridneprov'ya was investigate autecology of species and sorts of Hemerocallis genus.Is first well-proven the species-specificity of Fe, Pb, Cu, Ni, Zn and Cd accumulation by Hemerocallis species and sorts in the conditions of industrial contamination and action of motor transport extrass. The general tendency of daylilies adaptive reaction to contamination by heavy metals, are diminishing of chlorophylls "а"/"b" correlation at more sensible and its increase - at more steady. Adaptation of daylilies generative sphere to contamination of environment shows up in diminishing of pollen grains length and increase of sterile pollen amount.