Abstract
This paper focuses on the effects produced by GO-Ag and GO-CuO composite materials on microclones of hybrid white poplar and aspen (Populus alba x Populus tremula), hairy birch (Betula pubescens), crack willow (Salix fragilis), red oak (Quercus rubra) and scots pine (Pinus sylvestris) during their adaptation to greenhouse environment. The study revealed a positive effect of microclones treatment with GO-CuO and GO-Ag solutions at a concentration of 3 μg/l. The number of surviving and adapted microclones increased considerably, as did such parameters as the height of the plantlets, the number of leaves and the plantlets condition on a 1 to 5 scale. Photosynthetic activity was high in the white poplar and aspen hybrid, in birch, willow and pine. At the same time, in oak, the maximal stimulation of biomorphological parameters was accompanied by the decrease in photosynthetic activity. GO-Ag solution at a concentration of 4.5 μg/l produced an inhibitory effect on all the studied species except red oak.
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