Correlation Analysis between Chemical Components and Appearance Quality of Flue-cured Tobacco Leaves in Qujing City

[Objective]To reveal correlation degree of different tobacco quality evaluation index,shorten tobacco quality evaluation index.[Method]The relationship of chemical components and appearance quality of flue-cured tobacco leaves in Qujing were investigated by using descriptive statistics and canonical correlation analysis.[Result] The results indicated that: two kinds of quality evaluating indices of fluecured tobacco leaves showed significant canonical correlations.Chemical components such as reducing sugar,total N,nicotine and Cl-,appearance quality such as maturity,structure,body and oil played important roles between two quality groups relationship.[Conclusion]The study can provide theoretical guidance for production of flavor flue-cured tobacco in Yunnan tobacco area.