Phytoncidal Activity of Woody Plants Used in Landscaping of Territories of Children’s and Medical Institutions of Bryansk

The study examined the phytoncide activity of the most common species of woody plants used in the landscaping of children’s and medical facilities in Bryansk. Betula pendula, aesculus hippocastanum, tilia cordata, cotoneaster lucidus, physocarpus opulifolius, syringa vulgaris and picea abies were assessed for the phytoncidal activity of tissue juice and volatile procytocidal substances secreted by their crushed leaf plates and needles. For the experiment with the simplest microorganisms of the Euplotescharon species and tissue sap of plants, leaves and needles of the studied tree species of plants growing on the territories of five survey sites located in all administrative districts of Bryansk were collected. A significant correlation (tfact. ˃ ttabl. At p ˂ 0.05) between the indices of nitrogen dioxide and the phytoncidal activity of the tissue sap was found in Betula pendula, aesculus hippocastanum, cotoneaster lucidusand syringa vulgaris. The negative tendency of communication (tfact. ˂ ttabl.) is present in picea abies, tilia cordata and physocarpus opulifolius. The influence of volatile phytoncides of leaves and needles of woody plants on the development of mold mucor has also shown a link between indicators of air pollution and the activity of volatile phytoncids of leaves and needles of the studied plants.