THE SIGNIFICANCE OF CUTTING TIME AND TYPES OF STEM CUTTINGS IN ARTIFICIAL VEGETATIVE PROPAGATION OF SOME SPECIES OF THE GENUS POPULUS L. IN THE CONDITIONS OF DONETSK
The results of the study of stem cuttings root striking capacity of some species of the genus Populus L. in different phases of development under greenhouse conditions with artificial air humidification have been presented. Striking capacity and development of adventitious roots in the stern cuttings is directly dependent on the type and timing of cuttings. A more effective type of cuttings for the majority of the studied species are woody cuttings of the spring and summer period of propagation.