关键词: 烤烟, 化学成分, 物理性状, 相关性

Abstract:

In order to explore the relationship among quality evaluation indicators of the flue-cured tobacco leaf, 257 tobacco samples in Hunan were collected from 2011-2013, the relevance between chemical components and physical properties was studied through a simple correlation and canonical correlation analysis. The results showed that most indicators of chemical compositions of Hunan flue-cured tobacco revealed extremely significant correlation, while indexes of physical properties showed significant or extremely significant correlation, except for leaf length, equilibrium moisture content and stem ratio. Chemical composition and physical properties were significantly correlated, which was associated with the correlation between total sugar and leaf length (positive), leaf width (positive), single leaf weight (negative), total nitrogen and single leaf weight (positive), weight per unit area (positive), nicotine and single leaf weight (positive), weight per unit area (positive), leaf length (positive), leaf width (negative). These results would provided some evidence to tobacco quality evaluation system.

Key words: flue-cured tobacco, chemical composition, physical property, correlation