Cu^(2+)、Zn^(2+)和Mn^(2+)对低温胁迫下黄瓜幼苗叶片叶绿素荧光参数的影响  

Effect of Concentrations of Cu^(2+),Zn^(2+) and Mn^(2+) Nutrient Solution on Chlorophyll Fluorescence Parameters of Cucumber Seedling Leaves under Low Temperature

作　　者：李素梅[1] 李涛[1] 曹守军[1] 夏秀波[1] 王全华[1] 

机构地区：[1]山东省烟台市农业科学研究院,山东烟台265500

出　　处：《中国蔬菜》2009年第14期28-32,共5页China Vegetables

摘　　要：以黄瓜为对象,研究了低温胁迫下不同Cu2+、Zn2+和Mn2+浓度对其幼苗叶片叶绿素荧光参数的影响。结果表明:低温胁迫下,提高营养液Cu2+、Zn2+和Mn2+浓度能使黄瓜幼苗叶片Fv/Fm、ΦPSⅡ等叶绿素荧光参数明显增强,表明Cu2+、Zn2+和Mn2+浓度的提高能显著增强黄瓜叶片光合机构抗低温损伤的能力。The effects of different concentrations of Cu^2＋、Zn^2＋ and Mn^2＋ nutrient solution on chloro- phyll fluorescence parameters of cucumber seedling leaves under low temperature were studied. The results showed that Fv/Fm, φPSⅡ of cucumber seedling leaves could been increased under low temperature when cucumber was treated by high concentrations of Cu^2＋、Zn^2＋ and Mn^2＋ This indicated that the photosynthetic apparatus of cucumber seedling leaves could been enhanced by increasing the concentrations of Cu^2＋、Zn^2＋ and Mn^2＋.

关 键 词：黄瓜 叶绿素荧光参数 Cu^2+、Zn^2+ MN^2+ 

分 类 号：S642.2[农业科学—蔬菜学]