《Table 3 Comparison on aroma characteristics of flue-cured tobacco from different prefectures in Hen

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《GIS Based Aroma Characteristic for Regional Distribution of Tobacco Using Kriging Interpolation Method Set in Henan Province of China》

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Different letters in the same column represent p<0.05.

Aroma characteristic indexes are shown in Table 3.The results indicated that there were immature odour，green odour，scorched odour and ligneous odour in all seven different areas in Henan Province.But there was no rosin odour，pollen odour，herbal odour and metallic odour.Earthy odour was only in some areas.Aroma quality means of flue-cured tobacco from Henan Province tobacco-growing areas were from 2.65to 3.06 points.Aroma quality showed a trend of decrease from Zhumadian，Nanyang，Xuchang，Luoyang，Sanmenxia，Pingdingshan to Luohe cities.And there were significant differences among aroma quality from different regions in Henan Province.Besides，aroma quality of flue-cured tobacco from Zhumadian City was significantly better than Luohe.Aroma quantity means were from 2.70 to 3.03 points in Henan Province tobacco-growing areas.Aroma quantities generally decreased from Xuchang，Luoyang，Sanmenxia，Zhumadian and Pingdingshan cities，Nanyang City to Luohe City and there were no statistical differences among those areas.