Chinese Journal of Agrometeorology ›› 2012, Vol. 33 ›› Issue (02): 226-231.doi: 10.3969/j.issn.1000-6362.2012.02.012

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Effects of Flaveria bidentis Aqueous Extracts on the Height, Physiological and Biochemical Indexes of Maize Seedlings

TANG  Xiu-Li, FU  Wei-Dong, ZHANG  Guo-Liang, TAN  Wan-Zhong, ZHENG  Hao   

  1. 1Institute of Environment and Sustainable Development in Agriculture, CAAS/The Agriculture Departments AgriculturalEnvironment and Climate Change Key Laboratories, Beijing100081, China;2College of Plant Protection andResearch Center of Alien Invasive Species, Southwest University, Beibei Chongqing400716
  • Received:2011-09-23 Online:2012-05-20 Published:2012-08-30
  • About author:TANG Xiu-Li, FU Wei-Dong, ZHANG Guo-Liang, TAN Wan-Zhong, ZHENG Hao

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Abstract: The maize seedlings grown in soilless media were treated with 3 concentrations (0.1, 0.05 and 0.01g/mL) of aqueous extract of aerial part of  Flaveria bidentis, and distilled water as control.Performances of MDA, POD, SOD, CAT and CHL of the maize leaves were measured and evaluated every four days.Results showed that 3 treatments had negative effects on the growth of maize.The negative effects were enhanced with the increase of extracts concentration.The level of MDA contents, POD, SOD and CAT activity of maize seedling leaves were significantly higher than control, but the content of CHL was obviously less than the control.Moreover, a significant interaction existed between the concentrations of  F.bidentis aqueous extracts and the treated time.It turned out that the extracts of F.bidentis could inhibit the seedling growth.Thus, the results provide evidence for the further research of F.bidentis.

Key words: Flaveria bidentis, Maize, MDA, POD, SOD, CAT, CHL

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