Tob. Sci., 1980, 24-06, p. 17-20, ISSN. 0082-4523
Ozone responses of Pennsylvania seedleaf tobacco cultivars
Tobacco Laboratory, USDA SEA/AR, Beltsville, Maryland USA; USDA SEA/AR, Morgantown, West Virginia USA; Oxford, Tobacco Research Laboratory, USDA, SEA/AR, Oxford, North Carolina USA
Several cultivars of Pennsylvania Seedleaf (Type 41) cigar-filler tobacco were tested in an exposure chamber at Beltsville, MD for tolerance to photochemical air pollution, primarily ozone (O3). Controlled dosages of O3, (10, 15, 20, and 25 pphm by...