48th TWC, Tob. Work. Conf., 2018, abstr. 86

Evaluation of low alkaloid lines for chlorophyll levels, flowering dates, and relative ripening rates

SUMMERS K.(1); MOORE J.M.(1); LaHUE S.S.(1); MORRIS J.W.(2); COWERT W.H.(2)
(1) University of Georgia, Tifton GA USA; (2) Altria Client Services, Richmond VA USA

Tobacco has been an economically important crop throughout history; providing a substantial cash flow in return for a large investment of time, labor, and materials. Recent regulations are requiring a reduced amount of nicotine in finished product. Plants with reduced nicotine production may negatively impact both yield and quality of the lines used. Four lines with varying levels of nicotine content were evaluated from seeding to curing and analyzed their total alkaloids and reducing sugars to determine overall performance. Chlorophyll levels, days to flower, leaf number, plant height, yield, grade, and chemical content were determined for each line. Significant differences occurred between all four treatments in terms of total alkaloid production but not chlorophyll levels. Reducing sugars levels were not statistically different when comparing all four lines. (Reprinted with permission)