Journal of Chemistry / 2017 / Article / Fig 1

Research Article

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

Figure 1

Difference between burley tobacco and flue-cured tobacco in NRA, NRA/NA, and NO3-N content of leaves. Burley tobacco varieties were KT204 and TN86, and flue-cured tobacco varieties were HD and Y87. NA: nitrogen application (HD and Y87: 45 kg ha−2, KT204 and TN86: 180 kg ha−2). NRA: nitrate reductase activity. Error bars indicate standard error of the means ().
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