烤烟烘烤性状与烟叶化学成分的相关性

The flue-curing traits, i.e. easy curing potential, holding curing potential and flue-curing characteristics are important and special for flue-cured tobacco. To explore the relationship between them and the main chemical components, the 126 populations were investigated for their yellowing index(YI), browning index(BI), flue-curing score, and the contents of main chemical components including nicotine, total sugar, reducing sugar, total nitrogen, potassium(K₂O), and chlorine(Cl). The simple correlation analysis, partial correlation analysis, canonical correlation analysis and path analysis were conducted. The results indicated that the correlations between the flue-curing traits and specific chemical components were different, there existed significant correlation between the flue-curing traits and total nitrogen or nicotine, there existed certain correlation between the flue-curing traits and total sugar or reducing sugar, and there was no obvious correlation between the flue-curing traits and potassium or chlorine. We should pay attention to both the flue-curing traits and the other measures such as fertilization to control the contents of the cured tobacco leaves to meet the demand of the cigarette industry. 

Relationship between flue-curing traits and the main chemical components of cured tobacco leaves