Economic indicators of oriental tobacco varieties from the Krumovgrad ecotype created in the Experimental Station of Tobacco Haskovo

Ivko Stamatov

Abstract: With regard to the long-term tobacco growing in Bulgaria, it is necessary to enrich and optimize the variety structure of the oriental tobacco growing in the country corresponding to the changed demands of the consumer demand. A detailed knowledge of the possibilities of varieties and the introduction in the production of those with valuable biological and economic qualities is one of the main prerequisites for production and trade to produce and realize high quality products. In the Experimental Station of Tobacco - Haskovo, a rich gene pool of oriental tobacco varieties has been created, which have valuable biological and economic qualities. The main economic indicators of six oriental tobacco were studied. It was found that the varieties Krumovgrad 68 M, Krumovgrad 78 С, Krumovgrad 944, Krumovgrad 17 and Krumovgrad 56 have a higher yield per hectare and a higher quality of the leaves of the control variety Krumovgrad 988. The excess of the total decare yield for these varieties relative to the control is from 25.0 to 36.6%. A statistically significant linear correlation exists between the yield of dry tobacco and some of the elements of productivity. The yields increase along with the increase in plant height and the number of harvested leaves.

Keywords: economic indicators; ecotype Krumovgrad; oriental tobacco; yield

Date published: 2019-08-21