在盆栽条件下研究了干旱胁迫对烤烟化学成分和香气物质含量的影响。结果表明，在干旱胁迫下烤烟叶片还原糖含量下降，总氮和烟碱含量升高，烟叶中主要香气物质含量减少，品质下降。而且，在烟草生长发育过程中任一时期土壤严重干旱对烟叶的化学成分和香气物质含量都有很大影响，特别是成熟期严重干旱对烟叶品质的影响最大，轻度干旱则有助于提高烟叶的质量。 The effects of drought stress on the chemical composition and aroma components of flue-cured tobacco were studied under potted conditions. The results showed that the contents of reducing sugar and total nitrogen and nicotine in flue-cured tobacco leaves increased under drought stress, and the content of aroma components in tobacco leaves decreased and the quality declined. Moreover, severe soil drought at any time during tobacco growth and development has a great impact on the chemical composition and aroma components of tobacco leaves, especially the severe drought at maturity has the greatest impact on the quality of tobacco leaves, and mild drought will help to improve The quality of tobacco leaves.