对K326、KRK26、红花大金元3个烤烟品种开展有机和常规种植,研究有机种植方式对烤后烟叶内在品质及工业可用性的影响.结果表明:与常规种植相比,烤烟有机种植产量显著下降(P＜0.01),平均减产17.7％,均价平均提高25.6％,上等烟比例平均提高19.2％,中上等烟比例平均提高9.8％,产值变化规律不明显；烟叶总糖(TS)、还原糖(RS)含量极显著增加(P＜0.01),烟碱(NIC)、总氮(TN)、钾(K)含量及主要中性致香物质、总致香产物含量显著降低(P＜0.05).评吸结果表明,有机烟叶烟气醇和度、燃烧性稍差,香气量略显不足,但烟气舒适性较好,香气质细腻,烟碱含量适中,刺激性较小,其工业可用性整体优于常规烟叶.%Effect of organic cultivation on the quality and commercial value of the flue-cured tobacco varieties, K326, KRK26 and HD, was studied. As compared with the conventional method, the organic cultivation caused significant tobacco yield decline (P<0. 01) with an average reduction of 17.7%. On the other hand, its average market price increased 25. 6%. The proportion of high-grade tobacco increased 19. 2%, the proportion of medium-grade tobacco increased 9. 8%, and the production value was not significantly different. The contents of TS and RS increased significantly (P<0. 01); NIC, TN, K+ , main neutral aroma substances and total aroma substances decreased very significantly (P<0. 01) or significantly (P<0. 05). Sensory evaluation on the tobacco samples indicated that the organic tobacco leaves gave slight more alcoholic scent, slightly lower combustibility, less fragrant but more pleasant and delicate aroma, and less astringent nicotine flavor than its conventional counterpart, suggesting a possible somewhat superior commercial value.
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