M. Cui, H. Burton, L. Bush
Dec 1, 1994
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0
Influential Citations
6
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Journal
Journal of Agricultural and Food Chemistry
Abstract
A two year study was initiated to determine the effect of maleic hydrazide application rates (0.5×, 1.0×, 1.5×, and 2.0x the recommended rate) and methods (single, split, and reduced volume application) on accumulation of tobacco-specific nitrosamines (TSNA) and the correlation between TSNA and their precursors in burley tobacco. With increased MH application rates, alkaloids and nitrate levels decreased, whereas nitrite level was not affected. TSNAs were significantly lower (30-50%) in the lamina from the top stalk position than the hand-suckered control. N'-Nitrosonornicotine (NNN), 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), N'-nitrosoanabasine (NAB), and N'-nitrosoanatabine (NAT) were lowered by 15-51%, 36-65%, 38-61%, and 30-58%, respectively, at the top stalk position (...)