湘西自治州烟叶品质影响因子分析

Analysis of Influential Factors on the Quality of Tobacco Leaves in Xiangxi Autonomous Prefecture

[目的]分析烟叶品质及其影响因子,以有效利用影响因子来提高烟叶品质。[方法]利用湘西自治州7个县20个乡镇烤烟种植区的烟叶样品资料和相应的区域自动气象观测站资料,分析影响烟叶品质的生态因子。[结果]烤烟的大田平均气温对烤烟的品质指数、感官质量指数影响较大;成熟期日最高温度≥35℃的天数和海拔高度也是影响烟叶品质指数的主要因子;烤烟成熟期的平均气温对烟叶的化学成分影响不明显。[结论]该研究可为湘西州烟叶生产、烤烟种植布局和特色优质烟叶开发提供有意义的指导。

[ Objective ] Tobacco quality and its influential factors were analyzed, so as to effectively utilize influential factors to improve the quality of tobacco leaves. [ Method] By using tobacco samples and corresponding regional automatic weather observation station data in 20 tobac- co planting townships of 7 counties in Xiangxi, the influential ecological factors on the quality of tobacco leaves were analyzed. [ Result ] The av- erage temperature during flied tobacco growing period has significant effect on tobacco quality index and sensory quality index. The days of daily maximum temperature ~〉35~C and the altitude are the main factors that affect the tobacco quality index. The influence of the average temperature of 7-8 month on chemical components of tobacco is not obvious. [ Conclusion] The study provides meaningful guidance for tobacco leaf produc- tion, flue-cured tobacco planting layout and high-quality tobacco leaf in Xiangxi Prefecture.