云南省主产烟区烟叶化学成分的年度间稳定性

 初步探讨了云南省主产烟区烤烟烟叶化学成分年度间的稳定性结果表明:6年间云南省各烟区化学成分含量年度间都出现某些波动,总糖含量基本维持稳定并略呈缓慢增加的趋势;烟碱和总氮含量基本保持稳定;钾含量有一定的波动,近两年来呈上升趋势,2004年是近年来的较高水平;糖碱比的变动范围较大,糖碱比也相对较高,符合云南烤烟糖含量较高的特点。云南文山州烟区的烟叶化学成分年度间稳定性最差,大理州烟区的烟叶化学成分年度间稳定性最好。

Stability of Content of Chemical Components of Tobacco in Main Producing Areas in Yunnan During Years

Stability of content of chemical components of tobacco in main producing areas in Yunnan was analyzed ,and the results showed that it fluctuate during six years. Content of total sugar,nicotine and total notrogen keep basically stability. Content of total sugar increases slowly, so does the content of K in later two years ,and reaches the highest in 2004. The ratio of sugar/nicotine fluctuate in large range, and is relatively higher,which is coincide with the peculiarity of Yunnan tobacco. The stability of contents of chemical component of Wenshan tobacco is worst ,while those in Dali is best during six years.