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Acta Prataculturae Sinica ›› 2010, Vol. 19 ›› Issue (1): 95-102.

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Effects of low temperatures on physiological and biochemical indexes and growth of Asarum splendens

CAI Shi-zhen, PAN Yuan-zhi, CHEN Qi-bing, YE Chong   

  1. College of Forestry, Sichuan Agricultural University, Ya’an 625014, China
  • Received:2009-02-02 Online:2010-01-25 Published:2010-02-20

Abstract: Physiological and biochemical indexes, including electrolyte leakage, malondiadehyde, free proline and soluble sugar content of Asarum splendens leaves were measured in both natural and room controlled temperatures of 4℃, 0℃ and -4℃. The above indexes increased from November 2007 to January 2008 as temperatures decreased. The measured indexes increased as the stress time extended. The field plants grew well in conditions of natural low temperature and the room plants also grew well in conditions of cold stress at 4℃ and 0℃, but the room controlled plants could not grow and develop well with a stress of -4℃. Comprehensive analysis indicated that A. splendens could resist low temperatures above 0℃, but not -4℃ or below.

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