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对四川省烤烟主要化学成分含量进行了描述性统计分析和聚类分析,并进行了烟叶类型判别。结果表明,四川烟区烤烟主要化学成分比较协调,化学成分变异较大;四川烟区可分为5类。第1类为中糖中碱中钾区,香型从中偏清到中间型过渡,以中间型为主,位于四川盆地南缘山地区以及达县和元坝区;第2类为低糖低碱低钾区,香型为中间型,位于旺苍县;第3类为低糖高碱高钾区,香型为中间型,位于宣汉县;第4类和第5类为高糖中碱中钾区,位于四川西南山地区,主要包括凉山和攀枝花两市。第4类烟区烟叶香型以中偏清型为主;第5类以清偏中和中偏清型为主。从各类的烟叶化学成分来看,以第4和5类较为协调,第3类协调性稍差。
The main chemical components of flue-cured tobacco in Sichuan were analyzed by descriptive statistical analysis and cluster analysis, and the type of tobacco leaf was discriminated. The results showed that the main chemical components of flue-cured tobacco in Sichuan tobacco area were more coordinated and their chemical components varied greatly. There were five types of tobacco products in Sichuan tobacco area. The first category is the middle-potassium zone of the middle-sugar. The middle-type transition of the scent from mid-level to intermediate type is located in the mountainous area in the southern margin of Sichuan Basin and the areas of Daxian and Yuanba. The second category is low-sugar and low-alkali Low potassium zone, aroma intermediate type, located in Wangcang County; the third category is the low-sugar high-alkali and high-potassium zone, the fragrance is intermediate type, located in Xuanhan County; the fourth and fifth categories are high-sugar, Potassium area, located in the southwest Sichuan mountains, including Liangshan and Panzhihua two cities. In the fourth category, the flavor of tobacco leaf was mainly of mid-Qing type; the fifth type was mainly of Qing-Qing neutralization and middle-Qing type. From the chemical composition of various types of tobacco point of view, the more coordinated category 4 and 5, the third category is somewhat less coordinated.