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Acta Prataculturae Sinica ›› 2009, Vol. 18 ›› Issue (4): 75-80.

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A comprehensive assessment of drought-resistance of three wild rocky-slope grasses

XIE Xian-jian1, LAN Dai-ping2, BAI Jing-wen3   

  1. 1.School of Resources and Environment Science of Neijiang Normal University, Neijiang 641000, China;
    2.Logistic Department of Neijiang Normal University, Neijiang 641000, China; 3.Institute
    of Biology, Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2008-10-29 Online:2009-08-20 Published:2009-08-20

Abstract: The drought-resistance of three native, rocky-slope grasses (Pogonatherum paniceum, Eriophorum comosum and Cynodon dactylon) were studied in a pot experiment. Indexes such as leaf area index, drying roots accumulation, leaf holding water ability, leaf relative conductance, soluble protein, chlorophyll were analysed and a comparison of the subordinate function values of each grass was used to decide the drought-resistance order of each grass. Drought-resistance of P. panideum was stronger than C. dactylon which was stronger than E. comosum. This is useful to provide a theoretical foundation for selecting and cultivating native slope-protecting vegetation adapted to rocky slopes.

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