Alleviation of choline chloride on damage of chlorophyll and chlorophyll fluorescence parameters in wheat seedlings under drought stress
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DOI:10.7606/j.issn.1000-7601.2010.03.31
Key Words: wheat seedling  choline chloride  drought stress  chlorophyll fluorescence parameter  chlorophyll
Author NameAffiliation
CHEN Xue Jiangsu Key Laboratory of Eco Agriculural Biotechnology Around Hongze Lake, Huaiyin Normal University, Huai' an, Jiangsu 223300, China 
XU Jianming Jiangsu Key Laboratory of Eco Agriculural Biotechnology Around Hongze Lake, Huaiyin Normal University, Huai' an, Jiangsu 223300, China 
CHEN E Jiangsu Key Laboratory of Eco Agriculural Biotechnology Around Hongze Lake, Huaiyin Normal University, Huai' an, Jiangsu 223300, China 
TAN Qing Jiangsu Key Laboratory of Eco Agriculural Biotechnology Around Hongze Lake, Huaiyin Normal University, Huai' an, Jiangsu 223300, China 
ZHOU Xiao Jiangsu Key Laboratory of Eco Agriculural Biotechnology Around Hongze Lake, Huaiyin Normal University, Huai' an, Jiangsu 223300, China 
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Abstract:
      The effects of choline chloride (CC) on chlorophyl content and chlorophyl fluorescence parameters (Fo, FmFu, Fo' , Fm', Fo',qP, ETR and NPQ)on wheat (Triticum aestivum L. Huaimai 21)seedlings were studied after treatments with different concentrations(0, 100, 200, 300, 400 and 500 mg/L)under drought stress. The results showed that the content of chlorophyll a and content of chlorophyll were obviously increased by 83. 46 % and 81.74 % respectively after spraying choline chloride ( CC) with 300 mg/L concentration in wheat seedlings under drought stress. Also the chlorophyll fluorescence parameters (Fo', Fm',Fv' ,Fv' /Fm',qP, ETR and ΦPSⅡ) were main-tained higher than CK. It was suggested that there would be an alleviation of choline chloride on damage of chlorophyll and chlorophyll fluorescence parameters in wheat seedlings under drought stress.