摘要： 用盆栽和大田试验方法研究了烤烟打顶后喷施降碱增钾制剂的效果，结果表明，喷施降碱增钾制剂与对照相比，烟叶硝酸还原酶活性降低，转化酶活性升高，根系活力下降。烟叶的化学成分趋于协调，上部叶和中部叶烟碱含量分别降低了28.93%和10.43%，钾含量分别提高了21.5%和29.6%，致香物质较对照多。

关键词: 烤烟, 生理效应, 降碱增钾制剂, 品质, 香气物质

Abstract: Effects of reagent for decrease nicotine content and elevation potassium content on the physiological properties and quality of flue-cured Tobacco leaves were studied. The results showed that sprying reagent on tobacco leaves can decrease NR and roots activities,and increase invertase activities. Reagent can increase the potassium content in B₃F and C₃F leaves respresivily by 21.5% and 29.6%, while can decrease the nicotine content respresivily by 28.93% and 10.43%. The amout of aroma components in reagent-treatmented plant were higher than those of control plants.27 important aroma components were quantitatively determined. Its amount in C₃F and B₃F leaves were higher than those of control respresivily by 15.70% and 17.98%.

Key words: Flue-cured tobacco, Physiological properties, Reagent for decrease nicotine and elevation potass-ium content , Quality, Aroma components

中图分类号: 

• S572.01