Bioindication of park ecosystems in Kiev by pollen reaction of Taraxacum officinale Wigg

The work investigated the male generative system of populations of Т. officinale growing in park ecosystems of different administrative districts of Kiev, with an unequal level of anthropogenic load. It was found that with an increase in environmental pollution, the production of sterile pollen increases. The plants of the control zone showed a low level of sterility - 11,5%, on experimental test sites, the production of abortive pollen increased by 1.7 and 2.2 times depending on the level of anthropogenic influence. The most indicative of all the proposed indices of sensitivity of T. officinale pollen under environmental pollution were: the index of sterility and palynotoxic effect, they are recommended to be used for biological assessment of park ecosystems of a megacity.