The variation analysis of main chemical components of flue-cured tobacco with full aroma style in Guangdong Province

The variation of the main chemical components of flue-cured tobacco leaves from Guangdong tobacco-growing areas during 2003 to 2006 was analyzed.The results showed that:contents of total sugar,reducing sugar and the ratio of reducing sugar to nicotine were high in total;the content of chlorine was low and had a big variation;the ratio of potassium to chlorine was high but unstable.The difference of chemical components of flue-cured tobacco leaves among grades was significant except chlorine content and the ratio of potassium to chlorine;the difference of chemical components of flue-cured tobacco leaves among cultivars was not significant except contents of potassium and total nitrogen;the difference of chlorine content and the ratio of potassium to chlorine among years was unstable;the difference of chemical components among areas was significant at extreme level.The difference of chemical components of flue-cured tobacco leaves between Guangdong and Zimbabwe was significant.As far as upper leaf is concerned,contents of the main chemical compositions of the two different origins are similar.