Tob. Sci., 1981, 25-09, p. 24-29, ISSN. 0082-4523
Brown spot resistance in Nicotiana tabacum germplasm
Former Tobacco Laboratory, PGGI, now Applied Plant Pathology Laboratory, USDA-PPI, Beltsville Agricultural Research Center, Beltsville, Maryland USA; Oxford Tobacco Research Laboratory, Oxford, North Carolina USA; Pee Dee Experiment Station, Florence, South Carolina USA
The 990 tobacco introductions (TI’s) and 486 cultivars of the Nicotiana tabacum L. germplasm collection of the U.S. Department of Agriculture were exposed to natural field infection by Alternaria alternata (Fr.) Keissl. at Oxford, North Carolina, in...