Evaluation of productivity and quality of different varieties of Ukrainian group of nicotiana rustica.

Abstract

The availability of varieties and collections of N. rustica L. became the basis for planning experiments to study their adaptive potential. The purpose of the research is to evaluate the productivity and quality of leaves of the Ukrainian group of varieties of shaggy N. rustica L.. The main material during the formation of the collection was the amateur material of local varieties preserved by farmers and individual individuals, which clearly represent different ecotypes with a large set of economic and valuable features, well adapted to cultivation in certain conditions of their cultivation. Biometric assessment of five Ukrainian cultivars was carried out. The study of the dynamics of the passage of the main phenological phases of shag growth made it possible to establish varietal features. Varieties with early vegetation and pod formation were selected as valuable starting material for breeding. Varieties of Nicotiana rustica of the Ukrainian group are characterized by rather fast vegetation and a short flowering period. This property allows varieties of this group to form a sufficient amount of vegetative mass with high nicotine content for cultivation. Four varieties can be divided into a line according to the decrease in nicotine content:Vysokorosla Zelena > Koriotes dark >, Kharkyvska > Ukraynka.