The chemical composition of flue-cured tobacco is different due to the different regions and ecological environments. So the formula leaves (BF - 2 - 1) of flue-cured tobacco from nine production areas of China were studied. The results were the following: (1)the leaves from Jianshi, Meizhou,Chenzhou, Bijie and Linyi were clustered as first type,in which the contents of total sugar and reducing sugar were 16.19％-19.92％ ,12.73％-17.67％ respectively;the content of total nitrogen was between 2.13％-2.38％ and the content of Nicotine was 3.11％-3.76％; (2) the leaves from Yuxi, Luxi and Sanming were clustered as the second type,in which the contents of total sugar and reducing sugar were 22.05％- 23.74％, 19.38％- 20.26 ％ respectively, the content of total nitrogen was between 2.03％-2.25％ and the content of Nicotine was 2.65％3.10％; (3)the leaves from Simao was the independent type,the contents of total sugar and reducing sugar were 28.55％ and 24.05％ ,the content of total nitrogen and nicotine was 1.66％ and 2.07 ％. It could reduce the work of smoking and subjective errors and accelerate flue-cured tobacco production by using chemical composition of tobacco and clustering analysis%为了合理利用不同烤烟产区的模块配方烟叶,采用9个常见烤烟产区同一模块配方烟叶BF-2-1为材料进行研究.结果表明,不同产区烟叶聚类为3个区,分别为:(1)建石、梅州、郴州、毕节、临沂的烟叶为一类,总糖、还原糖含量分别为16.19%～19.92%,12.73%～17.67%;总氮在2.13%～2.38%;烟碱含量在3.11%～3.76%.(2)玉溪、泸西、三明的烟叶为一类,总糖、还原糖含量分别为22.05%～23.74%,19.38%～20.26%;总氮在2.03%～2.25%;烟碱含量在2.65%～3.10%.(3)思茅的烟叶独立为一类,总糖、还原糖含量分别为28.55%和24.05%,总氮为1.66%,烟碱含量为2.07%.烟叶化学成分测定后,进行聚类分析,可以减少评吸师的工作量,同时可以减少人为主观误差,有利于烤烟卷烟生产.
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