四川库存烟叶化学成分的差异及其主控因素

为探寻四川库存烟叶化学成分含量差异的主要影响因素,对2009至2011年四川库存441份烟叶的化学成分进行测定,利用哑变量对区域、部位定性变量赋值,并利用一般线性模型(GLM)进行主控因素分析。结果表明:四川库存烟叶总糖、还原糖、烟碱、氯、钾、总氮平均含量分别为23.91%、21.50%、2.44%、0.35%、2.01%、2.14%;部位是影响总糖、烟碱、钾、总氮含量差异的主控因素,其独立解释能力分别为24.52%、56.13%、20.93%、37.84%;区域是影响还原糖、氯含量差异的主控因素,其独立解释能力分别为24.10%、25.88%;年份也是影响钾和总氮差异的因素之一,其独立解释能力分别为20.22%、19.83%。

Study on chemical constituents and main controlling factors of tobacco leaf from tobacco inventory in Sichuan

Based on the 441 leaf samples of flue-cured tobacco in Sichuan inventory from 2009 to 2011, the main controlling factors affecting the contents of tobacco chemical components was analyzed by using dummy variables as qualitative variables for regions and parts combined with GLM model. The results showed that for the inventory of Sichuan tobacco, the average contents of total sugar, reducing sugar, nicotine, chlorine, potassium, total nitrogen were 23.91%, 21.50%, 2.44%, 0.35%, 2.01% and 2.14%, respectively. The content of each chemical composition was significantly affected by area, year, location and varietal differences. Location was the main controlling factor affecting the content of total sugar, nicotine, potassium and total nitrogen, which could explain 24.52%, 56.13%, 20.93% and 37.84% of the variability respectively; . Area was the main controlling factors of reducing sugars and chlorine, explaining 24.10% and 25.88% of the variability respectively. Year was also one of the main factors influencing the differences in potassium and total nitrogen, which could explain 20.22%, 19.83% of the variability respectively.