ACTA AGRICULTURAE BOREALI-SINICA ›› 2014, Vol. 29 ›› Issue (1): 170-177. doi: 10.7668/hbnxb.2014.01.031

Special Issue: Tobacco Radish

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Flue-cured Tobacco Nitrogen Metabolism Differences and Its Influence on Aroma Precursors in Different Amount of Nitrogen

LI Fei, YANG Tie-zhao, ZHANG Xiao-quan, WU Yun-jie, LI Li-hua, KANG Xue-li, FU Xin-yan, SONG Yang-yang   

  1. College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
  • Received:2013-11-20 Published:2014-02-28

Abstract: In order to explore the differences of nitrogen metabolism in varieties and its influence on tobacco aroma precursors formation. Under the condition of the field,measured nitrogen metabolites and related enzyme activity in different varieties under different nitrogen levels,at the same time determined carotenoids and polyphenols content. The results indicated that the difference of enzymes related to nitrogenous metabolism such as GS,GDH in varieties,determined the way of nitrogen transformation and the rule of the nitrogen transfer. It is an important factor that lead to nitrogen metabolism differences of genotype. Correlation analysis showed that grow mature early,correlation coefficient between carotenoid content and GS were 0. 515*; grow mature late,correlation coefficient between carotenoid content and GS,GDH were 0. 664**and 0. 645**; In the mature polyphenol content and NR correlation coefficient reaches- 0. 524**. By maturity of flue-cured tobacco,the NR activity was low,nitrate accumulation,the formation of polyphenols is restrained.

Key words: Flue-cured tobacco, Nitrogen metabolism, Caroteuoid, Polypheuols

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Cite this article

LI Fei, YANG Tie-zhao, ZHANG Xiao-quan, WU Yun-jie, LI Li-hua, KANG Xue-li, FU Xin-yan, SONG Yang-yang. Flue-cured Tobacco Nitrogen Metabolism Differences and Its Influence on Aroma Precursors in Different Amount of Nitrogen[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(1): 170-177. doi: 10.7668/hbnxb.2014.01.031.

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