不同施氮量协同打顶后同量调亏对烤烟中性致香物质含量及评吸质量的影响  

Effects of different nitrogen levels and equal nitrogen deficiency after topping on neutral aroma constituents contents and smoking quality in flue-cured tobacco

作　　者：苏菲[1] 史宏志[1] 杨军杰[1] 钱华[1] 周海燕[1] 穆文静[1] 刘国顺[1] 

机构地区：[1]河南农业大学烟草学院,河南郑州450002

出　　处：《河南农业大学学报》2012年第4期374-379,384,共7页Journal of Henan Agricultural University

基　　金：国家烟草专卖局浓香型特色优质烟叶开发项目[110201101001(TS-01)]

摘　　要：采用盆栽试验,研究了打顶前不同氮素营养水平协同打顶后同量调亏对烤烟NC 297的中性致香物质含量及评吸质量的影响.结果表明,中部叶中,高氮N1(5.250 g.盆-1)的类胡萝卜素类、苯丙氨酸类、棕色化产物类、新植二烯及中性致香物质总量均高于其他处理;上部叶中,随着施氮量增加,类胡萝卜素类、苯丙氨酸类、棕色化产物类、新植二烯及中性致香物质总量表现出先增后降的趋势,在高氮N2(4.375 g.盆-1)水平达到最大值.上部叶的茄酮含量变异较大,其含量分布为37.65～74.08μg.g-1,且随着施氮量的增加,其含量下降显著.中部叶评吸结果以高氮N1(5.250 g.盆-1)得分最高,上部叶以高氮N2得分最高.综合来看,打顶前丰富的氮素营养协同打顶后调亏处理N2(4.375 g.盆-1),有利于烟叶优良品质的形成.Pot experiment was conducted to study the influence of different nitrogen levels before topping and equal nitrogen deficiency after topping on neutral aroma constituents contents and smoking quality. The results showed that： the contents of aroma products degraded from carotenoid, phenylala- nine,aroma products of browning reaction, neophytadiene and the total contents of neutral aroma con- stituents in N1 （5. 250 g · pot^-1 ） were the highest in the middle leaves. While they increased first then decreased with the increasing nitrogen level in the upper leaves, and in the N2 （d. 375 g · pot^-1） nitrogen level they reached their maximum value. The variation of solanene content was greater in upper leaves, and its content significantly decreased with the increasing nitrogen level ranging from 37.65 -74.08 μg · g^-1 Smoking quality was the highest in N1 （5.250 g · pot^-1） in the middle leaves, while it was the highest in N2 （4. 375 g · pot^-1） in upper leaves. In conclusion, abundance nitrogen level before topping and then regulated deficit nitrogen after topping treatment N2 （4. 375 g · pot^-1） was the best.

关 键 词：烤烟 氮用量 中性致香物质 评吸质量 

分 类 号：S572[农业科学—烟草工业]