FEATURES VEGETATIVE PROPAGATION BUXUS SEMPERVIRENS L. IN SUMY NATIONAL AGRARIAN UNIVERSITY
The analysis of the terms of grafting, as well as the analysis of the influence of the substrate acidity and biologically - active substances on the process of root formation in lignified cuttings of evergreen boxwood in the Scientific Research and Experimental laboratory for horticulture and vineculture has been carried out. The optimum acidity of the substrate and favorable environmental conditions are the essential conditions for growing of a boxwood evergreen planting material. It is proved that the optimal substrate for rooting of boxwood cuttings is a mixture of sand and peat (pH 6.0 - 6.5) in 1: 1 proportion. Boxwood evergreen cuttings process can be carried out from April to August. There is an opportunity to escape the use of biologically - active substances in the process of growing Buxus sempervirens L. lignified cuttings.