Tob. Sci., 1963, 7-23, p. 105-109, ISSN.0082-4623
A preliminary study of grey tobacco in Ontario
Canada Department of Agriculture, Delhi, Ontario, Canada
Twelve grey tobacco samples were compared with non-grey samples of otherwise similar grade characteristics. Total nitrogen, total alkaloids and nicotine contents were lower, and the ratios of reducing sugars to nicotine and total nitrogen were higher...