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Nitrogen Metabolism and Curing Characteristics of Flue-cured Tobacco Variety NC71

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  • ZHENG, Cong
  • LI, Wei
  • LI, Bo
  • SUN, Hongquan
  • LU, Zhigang
  • AI, Yongfeng

Abstract

[Objectives] To explore the growth characteristics, nitrogen metabolism and curing characteristics of the new variety NC71 in strongly aromatic tobacco leaves production area. [Methods] With Yunyan 87 as the control and NC71 as the experimental material, the experiment was carried out in Nanyang tobacco area for two consecutive years to study the growth characteristics of tobacco plants, the activity of key enzymes in nitrogen metabolism, the content of secondary metabolites, and the differences of tobacco-related water content, PPO enzyme activity and total phenol content. [Results] NC71 plants had lower height, better appearance quality and lower nicotine, total sugar and chlorine content. NC71 high nitrogen treatment and Yunyan 87 medium nitrogen treatment had similar key enzyme activity of nitrogen metabolism, content of secondary metabolites; Yunyan 87 and NC71 were easy to cure and resistant to curing. [Conclusions] This study provides a reference for measuring the appropriate nitrogen application rate and optimizing the curing process from the activities of the key enzymes NR and GS in nitrogen metabolism at the mature stage of the variety.

Suggested Citation

  • ZHENG, Cong & LI, Wei & LI, Bo & SUN, Hongquan & LU, Zhigang & AI, Yongfeng, 2021. "Nitrogen Metabolism and Curing Characteristics of Flue-cured Tobacco Variety NC71," Asian Agricultural Research, USA-China Science and Culture Media Corporation, vol. 13(10), October.
    • Handle: RePEc:ags:asagre:317715
    DOI: 10.22004/ag.econ.317715
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    Agribusiness;

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