PECULIARITIES OF GROWING PLANTING MATERIAL OF EDIBLE HONEYSUCKLE (LONICERA EDULIS TURCZ.)

Abstract

The article presents research results of the peculiarities of growing planting material of edible honeysuckle. The factors influencing efficiency of adventitious rhizogenesis of this crop plant were considered. The results of our research showed the practical possibility of honeysuckle propagation by stem cutting. The study on biological principles of edible honeysuckle propagation by softwood cuttings allowed to refer this plant to the plants with the medium rooting ability. While using mist irrigation system in the control trial variant (without growth stimulator treatment) almost all researched varieties showed prolonged period of root formation of 20 – 25 days. Such cuttings form callus or primary anatomical roots mainly in the basal part, thus remaining weaken in winter and die out. The influence of researched plant growth regulators revealed itself on the first days after planting cuttings for root taking. The optimal concentrations of KANO – 5 – 10 mg/l were determined in softwood cuttings for root-forming processes depending on the variety. At the phase of intensive elongation (the 1st decade of June) massive callus formations appeared in 5 – 8 days after planting cuttings for rooting compared to the control variant – only in 20 – 25 days. It was established that efficiency of plant growth regulators depends on the time of cutting grafting, that is on physiological state of cuttings for rooting at that period. Over the years of the research insignificant differences were observed among rooting varieties of edible honeysuckle. It is explained by unfavourable weather conditions during cutting grafting, growth and development of own-rooted plants. On average better results of root formation were in cuttings of such honeysuckle varieties as Bohdana (52.3%), Medvedytsia (73.1%), Fialka (54.7%). Root forming processes in the cuttings of these varieties were more intense compared to the cuttings that were prepared from such varieties as Stepova (49.8%), Holube Vereteno (40.1%), Synia Ptytsia (34.9%) and Tomichka (30.6%). Increase of the above-ground part of the rooted cutting varies depending on variety and the place of rooting and completion of growing.