烤烟成熟过程中烟叶叶龄与品质特性的关系

 以延边大田种植的烤烟品种吉烟9号为试材，于2007—2008年研究了烤烟成熟过程中，烤烟化学成分、物理性状和香气质量的动态变化。结果表明：叶龄65d时烟叶化学成分较为协调，物理性状表现最佳，香气物质总量、新植二烯以及其他香气物质含量较高，棕色化产物类和类胡萝卜素类香气物质含量增幅较大，感官评吸得分最高，香气质感较好，香气量足特征较为明显，香气质量较优。综合上述结果认为，当吉烟9号叶龄在65d时，烤后烟叶品质最好，烟叶采收时期最佳。

Relationship between Leaf Age and Quality Characteristic of Flue-cured Tobacco during Maturing Period

In 2007—2008, taking Jiyan 9 which widely planted in Yanbian as testing material, dynastic variations of chemical components, physical characters and aroma quality of flue-cured tobacco were studied. The result indicated that: the chemical components of 65 days of tobacco leaves were more harmonious; The physical characters perform well; The total aroma constituents the other aroma constituents and neophytadiene were high; The browning reaction products and carotenoids contents improved; The smoking scores were the highest, the aroma quality and quantity were the best. In conclusion, tobacco leaves were harvested at 65d with the best cured leaf quaulity.