广东浓香型烤烟主要化学成分的变异分析

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

对2003—2006年广东省主产烟区烤烟主要化学成分含量进行了变异分析,结果表明:广东烤烟总糖含量、还原糖含量及糖碱比总体较高,烟叶氯含量较低且变异性较大,钾氯比较大但表现欠稳定.广东烤烟不同等级间除氯含量和钾氯比差异不显著外,其余各指标差异均达到显著水平;不同品种烤烟除钾含量和总氮含量外,化学成分差异均不显著;年际间氯含量及钾氯比表现较不稳定;不同地点间化学成分差异极显著.广东烤烟与津巴布韦烤烟化学成分存在显著差异,但就上部叶而言,两地烤烟主要化学成分含量相近.

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.