Tob. Sci., 1982, 26-01, p. 1-3, ISSN. 0082-4523
Comparative effect of vein banding and black shank on Nicotiana tabacum cvs. McNair 944, Speight G-28 and breeding line NC 744 with and without ridomil
Department of Plant Pathology, North Carolina State University, Raleigh, NC, USA; Tobacco Research Laboratory, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, Oxford, NC, USA; Research, Science and Education Administration, Tobacco Research Laboratory, Agricultural Research, U.S. Department of Agriculture, Oxford, NC, USA
No strains of potato virus Y (PVY) caused necrosis on Nicotiana tabacum breeding line NC 744 during field tests in 1979 and 1980. Incidence of black shank caused by Phytophthora parasitica var. nicotiana in plots of NC 744 averaged 46.5% without and...