journal1 ›› 2014, Vol. 29 ›› Issue (3): 199-203. doi: 10.7668/hbnxb.2014.03.036

Special Issue: Tobacco

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Effects of Molybdenum and Nitrogen Combined Application on the Net Photosynthesis and Soluble Sugar in Flue-Cured Tobacco

HU Zhen-lan1, ZHANG Hai-wei2, HU Cheng-xiao1, HE Kuan-xin2, TAN Qi-ling1, SUN Xue-cheng1   

  1. 1. Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China;
    2. Jiangxi Tobacco Research Institute, Nanchang 330025, China
  • Received:2014-03-17 Published:2014-06-28

Abstract: A pot experiment was conducted to investigate the effects of molybdenum and nitrogen combined application on chlorophyll contents, photosynthesis and soluble sugar in flue-cured tobacco.The results showed the interaction effect between that Mo and N was significant on chlorophyll contents in flue-cured tobacco.Molybdenum application decreased chlorophyll a and chlorophyll b contents under N1 (0.06 g/kg) level, and increased chlorophyll a and chlorophyll b contents under N2 (0.24 g/kg) and N3 (0.42 g/kg) levels.Mo application increased net photosynthetic rate (Pn) under 3 different nitrogen levels at rosette stage.Significant interaction effect between molybdenum and nitrogen was observed on soluble sugar contents of flue-cured tobacco at maturity stage.Mo application increased significantly increased soluble sugar contents of upper leaf, middle leaf and lower leaf of flue-cured tobacco at maturity stage.Consequently, reasonable molybdenum and nitrogen combined application is an effective method that can improve yields and quality of flue-cured tobacco.

Key words: Flue-cured tobacco, Molybdenum, Soluble sugar, Photosynthesis, Chlorophyll

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Cite this article

HU Zhen-lan, ZHANG Hai-wei, HU Cheng-xiao, HE Kuan-xin, TAN Qi-ling, SUN Xue-cheng. Effects of Molybdenum and Nitrogen Combined Application on the Net Photosynthesis and Soluble Sugar in Flue-Cured Tobacco[J]. journal1, 2014, 29(3): 199-203. doi: 10.7668/hbnxb.2014.03.036.

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