Biological, economic and chemical characteristic of perspective lines Burley tobacco

Yovko Dyulgerski

Abstract: In experimental field of TTPI are studied eight new created lines of varietal group Burley tobacco. Biological, economic and chemical evaluation is made of the studied variants. As a result, the study found that all studied lines have optimal for Burley tobacco biometric indicators and outperform at the length of the vegetative period the standard Pliska 2002 variety. With the high yield features Lines 1400 followed by Line 142 and Lines 1409. The highest percentage of first class is obtained from Line 1400, which gives the lowest percentage of third grade. Favorable indicators in terms of percentage of first class are obtained from Line 1423, but it has lower yields. The results of economic evaluation showed that all new lines superior to the standard Pliska 2002 variety, both in production and in percentage of first class. Line 1400 is the best balanced for the requirements for the chemical composition of Burley tobacco. Line 1409 and Line 1435 are also presented with a relatively well balanced composition, but the latter is also low-yielding. Line 1400 strongly stands out from the complex of studied indicators, which can be presented to Executive Agency for Seed Testing, Approbation and Seed Inspection for recognition as a new Burley tobacco variety.

Keywords: biological indicators; Burley tobacco; chemical composition; economic assessment; new lines

Date published: 2020-12-07