Tob. Sci., 1992, 36-14, p. 49-52, ISSN. 0082-4523, Tob. Reporter, 1992, 119-10, p. 60-3
Effect of MH application time on methanol-soluble and insoluble residues in flue-cured tobacco
Department of Toxicology, North Carolina State University, Raleigh, NC, USA; Toxicology Program, North Carolina State University, Raleigh, NC, USA; USDA-ARS, Crops Research Laboratory, Oxford, NC, USA
Field experiments were conducted in 1983 and 1986 to determine the relationships among sucker control, level of methanol-soluble and methanol-insoluble MH, and the time of day that MH was applied. Residues for both fractions were highest from applications made at 1000 and 1400 h and lowest from applications made at 0200 and 0600 h. Residue concentrations from applications made at 1800 and 2200 h tended to be intermediate. Sucker control varied with time of day of MH application. The best control was obtained with application times that gave the highest MH residues.