Pollen Morphology of Broadleaf Trees Growing in Different Health Conditions in the City of Aktobe

The purpose of this work is to comparatively assess pollen viability five plant species growing in different areas the city Aktobe, Kazakhstan (N 50°18´, W 57°10´). Pollen was assessed through iodine staining on samples grains harvested between April and June 2017 from 100 plants 5 industrial zones, parks, along highways: Ulmus laevis Pall., pinnato-ramosa Dieck., Acer negundo L., Syringa vulgaris Populus tremula L. minimum percentage fertile that found has been detected up 68%. For pinnato-ramosa, proportion 30%. vulgaris, similar trends were obtained. All except (0.42) (0.37) showed no relationship size intensity their color change. Among all under study, two (Ulmus tremula) had potential act as model bioindicators urban pollution. demonstrated highest defective 98%.