Journal of Chemistry / 2017 / Article / Fig 5

Research Article

Difference between Burley Tobacco and Flue-Cured Tobacco in Nitrate Accumulation and Chemical Regulation of Nitrate and TSNA Contents

Figure 5

Effects of chemical regulation on NNN, NAB, NAT, NNK, and total TSNA concentration in flue-cured tobacco. Error bars indicate standard error (). Symbols and indicate significant difference at 0.01 or 0.05, respectively.

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