不同施肥和灌溉组合对烤烟化学成分和香气质量的影响

以烤烟(Nicotiana tabacumL.)品种吉烟9号为材料,通过田间试验研究了不同施肥和灌溉组合对烤烟化学成分、香气成分含量、组成及其作用机理的影响。结果表明,N∶P2O5∶K2O为1∶2∶3和限量灌溉组合使烟叶的糖碱比和氮碱比均较适宜,蛋白质含量较低,化学成分较为协调,苯丙氨酸类、棕色化产物类和类胡萝卜素类致香物质含量较高,改善了烟叶的综合品质,表现为香气质纯净、香气量较足、杂气较少、刺激性较低、余味舒适、烟气浓度大、燃烧性好等,能较好满足延边烟区烤烟的生长发育,有利于提高烟叶香气质量。

Effects of different combinations of fertilization and irrigation on chemical components and aroma quality of flue-cured tobacco

Field experiment was carried out in Yanbian to study the effects of different combinations of fertilization and irrigation on chemical components and aroma compounds of a tobacco (Nicotiana tabacum L.) cultivar Jiyan 9.The results showed that N:P2O5:K2O = 1:2:3 and limited irrigation could result in suitable ratios of total sugar/nicotine and of nitrogen/nicotine,lower protein content and higher aroma components contents of phenylalanines,browning reaction and carotenoids products,thus improved the comprehe...