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浙江大学学报（农业与生命科学版）
浙江大学学报(农业与生命科学版)  2011, Vol. 37 Issue (5): 540-544    DOI: 10.3785/j.issn.1008-9209.2011.05.011
农业科学     
镁肥对玉米功能叶光系统Ⅱ 荧光特性的影响
苏仲, 曹敏建, 盛耀辉, 蒋文春, 陈志斌
沈阳农业大学农学院,辽宁沈阳１１０８６６
Effects of magnesium fertilizer on photosystem Ⅱ chlorophyll fluorescence characteristics of functional leaves in maize .
SU Zhong ,CAO Min‐jian ,SHENG Yao‐hui , JIANG Wen‐chun ,CHEN Zhi‐bin
College of Agronomy ,Shenyang Agricultural University ,Shenyang 110866 , China
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摘要： 以辽宁地区主栽玉米品种沈玉２１号、东单９０号为试验材料,通过设置６个不同水平的镁肥用量(A１ :０ kg。hm － ２ 、A２ :２２.５ kg.hm－ ２ 、A３ :４５ kg.hm－ ２ 、A４ :６７.５ kg.hm － ２ 、A５ :９０ kg.hm－ ２ 、A６ :１１２.５kg.hm － ２ ) ,测定穗位叶片ABS/RC 、ET０ /RC 、TR０ /RC 、M０ 、Sm 、φE０ 等叶绿素荧光参数,研究不同镁肥用量对玉米光系统Ⅱ (photosystem Ⅱ , PS Ⅱ )荧光特性的影响.结果表明:与不施镁对照相比,沈玉２１号施镁４５ ～ ６７.５ kg.hm－ ２ ,叶片光系统Ⅱ 荧光参数值显著或极显著提高,镁肥施用量超过６７.５ kg.hm－ ２ 的处理(A５ 和A６ )除对φE０ 外的所有参数无提高作用,甚至显著地降低;而东单９０ 号施镁６７.５ ～９０ kg.hm － ２ ,叶片光系统Ⅱ 荧光参数值显著或极显著提高,镁肥施用量低于６７.５ kg.hm－ ２ 的处理对除TR０ /RC 外的所有参数无提高作用.综上,沈玉２１ 号的镁肥施用量为４５ ～ ６７.５ kg.hm－ ２ 、东单９０ 号的镁肥施用量为６７.５ ～ ９０ kg.hm － ２ 可以提高光系统Ⅱ 的线性电子传递效率,增加光合同化力,提高光能利用效率.
Abstract: Using maize hybrids Shenyu ２１and Dongdan ９０as entries , the effects of magnesium fertilizer on photosystem Ⅱ ( PS Ⅱ ) chlorophyll fluorescence characteristics of maize were studied through measuring chlorophyll fluorescence parameters such as ABS/RC , ET ０ /RC , TR０ /RC , M０ , Sm and φE０ in six magnesium fertilizer levels (０ ,２２.５,４５,６７.５,９０, and １１２.５kg.hm－ ２ ).The results showed that , compared with the control , the chlorophyll fluorescence parameters in Shenyu ２１ increased significantly or highly significantly when the magnesium fertilizer amounts ranged from ４５ to ６７.５ kg.hm－ ２ .The magnesium fertilizer did not affect or decreased the parameters beside φE０ when the fertilizer level was more than ６７.５ kg .hm－ ２ .As for Dongdan ９０ , the chlorophyll fluorescence parameters increased significantly or highly significantly at the application amounts of magnesium fertilizer between ６７.５and ９０.０kg.hm－ ２, but changed less beside the parameter of TR０ /RC when the fertilizer amount was less than ６７.５ kg.hm－ ２ ,compared with control . Therefore , the PS Ⅱ linear electron transfer efficiency couldbe promoted , and assimilatory ability could be increased , and light utilization efficiency could be enhanced under the magnesium fertilizer levels of ４５‐６７.５ kg.hm － ２ in Shenyu ２１or ６７.５‐９０ kg.hm－ ２ in Dongdan ９０.
出版日期: 2011-09-20
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苏仲
曹敏建
盛耀辉
蒋文春
陈志斌

引用本文:

苏仲, 曹敏建, 盛耀辉, 蒋文春, 陈志斌. 镁肥对玉米功能叶光系统Ⅱ 荧光特性的影响[J]. 浙江大学学报(农业与生命科学版), 2011, 37(5): 540-544.

SU Zhong,CAO Min‐jian,SHENG Yao‐hui,JIANG Wen‐chun,CHEN Zhi‐bin. Effects of magnesium fertilizer on photosystem Ⅱ chlorophyll fluorescence characteristics of functional leaves in maize .. Journal of Zhejiang University: Agric. & Life Sci., 2011, 37(5): 540-544.

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http://www.zjujournals.com/agr/CN/10.3785/j.issn.1008-9209.2011.05.011    或    http://www.zjujournals.com/agr/CN/Y2011/V37/I5/540

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