REGENERATIVE ABILITY EVALUATION OF GREEN CUTTINGS OF PROMISING HONEYSUCKLE VARIETIES
Honeysuckle propagation by green cuttings allows obtaining a large amount of varietal planting material with significant mechanization of technology processes. Many of new honeysuckle varieties have been selected by research institutions in our country in recent years. However, unsufficient amount of planting material restricts the distribution of these varieties. The research goal was the determination of honeysuckle green cuttings regenerative ability in film greenhouses with artificial fog irrigation. The studies were carried out at the Lisavenko Research Institute of Gardening (Federal Altai Scientific Center of Agro-Biotechnologies) in 2018, 2019 in accordance to conventional research methods and specific recommendations “Honeysuckle propagation technology” in film greenhouses equipped by automatic irrigation system. The research targets were 17 honeysuckle varieties bred in different scientific institutions. It has been found out that in rainy weather in partially covered greenhouses, honeysuckle cuttings can suffer from root wetting because of substrate overwatering. Among the varieties of the Lisavenko Institute, high survival of cuttings (91.0%) and the standard seedlings rate (90.3%) was revealed for Yumis variety. The regenerative ability of the “Bakcharskoye” Station's varieties ranged from 70.5 (Bakcharskiy velikan) to 95.6 (Yugana). Three varieties of I.V. Michurin Institute had a high percentage of rooting (90.9-95.5). Two varieties of Vavilov Institute had survival rate of cuttings from 79.6% (Laura) to 99.3% (Morena). As a result of investigations the mean rooting ranged from 70.5% (Bakcharskiy Velikan) to 99.3% (Morena). The varieties Yumis, Berel, Vostorg, Ussulga, Goluboy desert, Koketka, Pamyati Kuminova, and Yugana had both high rooting ability of cuttings (91.0-95.6%) and high yield of standard one-year seedlings (86.3-100.0%).