湖北烤烟非挥发性有机酸含量及其与海拔高度的关系分析

Nonvolatile Organic Acid Content in Flue-cured Tobacco Leaves and Its Relationship with Altitude in Hubei

摘要: 分析了湖北烤烟非挥发性有机酸含量特征及其与海拔高度的关系。结果表明，(1)湖北烤烟非挥发性有机酸总量平均为139.62 mg/g，等级间表现为：X2F>C3F>B2F，糖酸比总体较为适宜。(2)聚类分析将海拔高度与烟叶非挥发性有机酸含量、糖酸比共8 项指标分为3 类。B2F 和C3F 等级烟叶在海拔高度为950～1 150 m 左右，X2F 等级烟叶在海拔高度为1 050～1 300 m 左右时，非挥发性有机酸总量相对较高、糖酸比较为适宜。

Abstract: The characteristics of nonvolatile organic acids in Hubei flue-cured tobacco and its relationship with altitude were analyzed. The results indicated that the contents of nonvolatile organic acids averaged 139.62 mg/g, and in grades from high to low was X2F>C3F>B2F. The ratio of reducing sugar to nonvolatile organic acids was suitable in whole. Altitude and nonvolatile organic acids, the ratio of reducing sugar to nonvolatile organic acids could be classified into three groups by cluster analysis. In the leaves of B2F and C3F at the altitude of 950-1150 m, and X2F at 1050-1300 m, the contents of nonvolatile organic acids were higher and the ratio of reducing sugar to nonvolatile organic acids was favorable.