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ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (3): 613-616.

• 研究简报 • Previous Articles     Next Articles

Comparision of Arbuscular Mycorrhizal Fungi for Drought Resistance of Trifoliate Orange ( Poncirus trifoliata L. Raf. ) Seedlings

Wu Qiangsheng1, 3;Wang Youshan2;Xia Renxue1*   

  1. (1College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, Hubei 430070, China; 2 Institute of Plant Nutrition and Resources, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100089, China; 3College of Horticulture and Gardening, Yangtze University, Jingzhou, Hubei 434025, China)
  • Received:2005-06-20 Revised:2005-08-18 Online:2006-06-25 Published:2006-06-25

Abstract: The effect of Glomus versiforme, G. mosseae, G. geosporum, G. diaphanum and G. etunicatum on water relations of trifoliate orange ( Poncirus trifoliata L. Raf. ) seedlings was studied in potted culture under well-watered and water stress conditions. Arbuscular mycorrhizal inoculations increased the plant biomass and biological morphological characteristics under well-watered and water stress conditions. Soluble sugar in leaves and roots, soluble starch in leaves, and soluble protein in leaves were enhanced by arbuscular mycorrhizal inoculations under two water regimes conditions. Moreover, mycorrhizal seedlings had higher superoxide dismutase, peroxidase and catalase activities in leaves. Thus, the drought resistance of mycorrhizal seedlings was enhanced. Inoculation with G. versiforme showed the greatest effects under well-watered conditions and inoculated with G. mosseae the greatest effects underwater stress conditions.

Key words: Trifoliate orange, Seedling, Arbuscular mycorrhizal fungi, Glomus mosseae, Water stress