烤烟喷施降碱增钾制剂的生理效应及对品质的影响

Effects of Reagent for Decrease Nicotine Content and Elevation Potassium Content on Physiological Properties and Quality of Flue-cured Tobacco

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。

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 B_3F and C_3F 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 C_3F and B_3F leaves were higher than those of control respresivily by 15.70% and 17.98%.