ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (3): 208-212. doi: 10.3969/j.issn.1000-7091.2012.03.040

Special Issue: Tobacco

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Effects of Clipping Times in Seedling Stage on Nitrogen Metabolism during Growth Phase in Field of Flue-cured Tobacco

DENG Shi-yuan1, XIE Wen-ting1, LUO Fu-ming2, WANG Wei1, WANG Jun3, CHEN Jian-jun1, LING Shou-jun2, XIAO Xing-qiang3   

  1. 1. Tobacco Laboratory, South China Agricultural University, Guangzhou 510642, China;
    2. Tobacco Ltd. in Qing yuan of Guangdong, Qingyuan 511515, China;
    3. Lianzhou Branch of Tobacco Ltd. in Qing yuan of Guangdong, Lianzhou 513400, China
  • Received:2012-02-20 Published:2012-06-28

Abstract: With Huayan06 as the tested material,effects of clipping times in seedling stage on metabolization of?nitric compounds and enzyme activity of flue-cured tobacco leaves from vigorous growing stage to maturity stage were?studied. The results showed that,in 1-4 clipping times,treatment of clipping 3 times increased the chlorophyll chlorophyll content of tobacco,but treatment of chipping 4 times decreased the chlorophyll content compared with chipping 1 times and chipping 2 times. Effects of adding clipping times to increase activity of nitrate reductase (NR)?and nicotine content were significant. In maturity stage,contents of total nitrogen,FAA and protein of clipping 4?times treatment were higher,but those of clipping 3 times were lower. All things considered,treatment of clipping 4?times improved the capability of nitrogen absorbtion and conversion synthesizing,although treatment of chipping 3?times improved the capability of nitrogen absorbtion,but decreased the capability of nitrogen synthesizing.

Key words: Flue-cured tobacco, Clipping , Nitrogen metabolism

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Cite this article

DENG Shi-yuan, XIE Wen-ting, LUO Fu-ming, WANG Wei, WANG Jun, CHEN Jian-jun, LING Shou-jun, XIAO Xing-qiang. Effects of Clipping Times in Seedling Stage on Nitrogen Metabolism during Growth Phase in Field of Flue-cured Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(3): 208-212. doi: 10.3969/j.issn.1000-7091.2012.03.040.

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