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Experiments were conducted in 1976, 1977 and 1978 to examine the chemical composition of four flue-cured tobacco cultivars (Nicotiana tabacum L.) with a range of weather fleck tolerances. Weather fleck is associated with the air pollution injury to plants. The amount of surface wax was positively related to the weather fleck tolerance. Individual phenolic constituents, nonvolatile organic acids and fatty acids were not related to weather fleck tolerance in the tobacco cultivars used in the study.Key words: Weather fleck, flue-cured tobacco, surface waxes, phenolic constituents, organic and fatty acids

CHEMICAL COMPOSITION OF FLUE-CURED TOBACCO CULTIVARS WITH DIFFERENT SENSITIVITIES TO WEATHER FLECK