STUDY OF QUANTITATIVE CHARACTERISTICS IN ORIENTAL TOBACCO GENOTYPES

Abstract

Ten genotypes of oriental tobacco (three varieties and seven
newly created lines) were investigated for some major morphological
and agronomic traits: height of the plant without inflorescence, leaf
number per plant, length/width of the middle belt leaves and dry mass
yield/plant. The trial was set up in the Experimental field of Tobacco
Institute–Prilep in 2016 and 2017, in randomized block design with four
replications, using traditional agricultural practices. Measurements of
the first three traits were made in the stage of butonization and
beginning of flowering, while the dry mass yield was recorded during
the treatment of cured tobacco. The results were statistically processed.
The aim of the research is to study the quantitative traits of Oriental
genotypes, to determine the stability of the population through their
variability and to emphasize the best among the selected assortment.
From the set of genotypes we selected three superior lines with a high
degree of homogeneity. The coefficient of variation of quantitative traits
in these lines was lower than 10%, which is a sign of their stability. After
their acceptance by the Commission for recognition and approval of
varieties within the Ministry of Agriculture, Forestry and Water
Economy of R. Macedonia, these genotypes will be placed on the market.