8Beck E H,Fettig S,Knake C,et al.Specific and un-specific responses of plants to cold and drought stress[J].Journal of Biosciences,2007,32(3):501-510.
9Verslues P E,Agarwal M,Katiyar-Agarwal S,etal.Methods and concepts in quantifying resistance todrought,salt and freezing,abiotic stresses thataffectplant water status[J].Plant J,2006,45(4):523-539.