›› 2018, Vol. 30 ›› Issue (2): 248-254.DOI: 10.3969/j.issn.1004-1524.2018.02.10

• Horticultural Science • Previous Articles     Next Articles

Effects of enhanced UV-B radiation and nitrogen deposition on chlorophyll fluorescence parameters of invasive plant Triadica sebifera

ZHENG Xiang, JIANG Liangbo, DENG Bangliang, LIU Qian, LIU Xishuai, ZHENG Liya, GUO Xiaomin, LIU Yuanqiu, ZHANG Ling*   

  1. Jiangxi Provincial Key Laboratory of Silviculture, Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization, College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China
  • Received:2017-08-28 Online:2018-02-20 Published:2018-02-11

Abstract: In order to study the effects of enhanced UV-B radiation and nitrogen deposition on chlorophyll fluorescence parameters in invasive plant Triadica sebifera, we used plant materials which came from the native land China and the invaded land US. The results showed that UV-B radiation and nitrogen deposition showed interactive effect on plant height, and UV-B radiation and origin had a significant interaction on Fv/Fm. UV-B radiation significantly increased the SPAD of T. sebifera, and nitrogen deposition significantly increased SPAD and decreased Y(Ⅱ) and ETRmax of T. sebifera. Nitrogen deposition could alleviate UV-B radiation stress effects on plant growth of Triadica sebifera. Compared with the local Chinese populations, the population from America showed higher light energy conversion efficiency and growth rate of height, lower SPAD and was more sensitive to UV-B radiation stress.

Key words: plant invasion, Triadica sebifera, UV-B radiation, nitrogen deposition, chlorophyll fluorescence parameters

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