Detection of variability in black currant plants (Ribes nigrum L.) obtained in vitro for selection in Bashkiria conditions

Black currant (Ribes nigrum L.) is one of the most valuable berry bushes in the Republic of Bashkortostan. Varietal composition of this crop is mainly represented by highly adaptive varieties of Bashkir selection. The varieties Karaidel and Chishma are high-yielding, highly resistant, have field resistance to major diseases and pests and good shoot-forming and sprouting ability. Nowadays the varieties Karaidel and Chishma are involved in the selection of black currant as parent forms for creating new varieties. The aim of the study is to identify the variability of economic and biological characteristics of black currant varieties obtained by clonal micro-propagation in vitro. The research tasks include carrying out phenological observations, taking into account winter hardiness and drought resistance, general state of plants, taking in consideration the degree of plant damage by diseases and pests, and determining the period of rest. The study presents the results of the research on the variety study of black currant plants (Ribes nigrum L...