不同脐橙生理病害对叶片矿质元素含量及营养物质代谢的影响  

The Effects of Different Physiological Diseases of Navel Orange on Mineral Element Contents and Nutrient Metabolism in Leaves

作　　者：徐华[1] 戴小华[1,2] 杨耘[1] 曹利民[1] 

机构地区：[1]赣南师范学院化学与生命科学学院,江西赣州341000 [2]江西省脐橙工程技术研究中心,江西赣州341000

出　　处：《北方园艺》2010年第14期166-168,共3页Northern Horticulture

基　　金：国家科技支撑计划子课题资助项目(2007BAD61B02-1);江西省教育厅科学技术研究资助项目(GJJ08386);赣州市果业基金科技支撑计划资助项目(7);赣南师范学院自然科学基金资助项目(08kyzo1)

摘　　要：比较分析了赣南纽荷尔脐橙几种生理病害叶片的矿质元素含量,并研究了缺素对脐橙叶片可溶性糖、可溶性蛋白质和可溶性氨基酸含量的影响。结果表明:1号生理病害叶片内钾元素的含量,2号叶片镁和锰元素的含量,3号叶片锌和镁元素的含量,4号叶片锰元素的含量都明显低于正常叶片。4种生理病害叶片中可溶性糖的含量,可溶性蛋白质的含量,以及可溶性氨基酸的含量都明显低于正常叶片。因此,矿质元素缺乏能影响脐橙叶片中营养物质的代谢。其中,缺钾对叶片可溶性糖含量的代谢影响最显著,缺锌对叶片可溶性蛋白质和氨基酸含量的代谢影响最显著。Contents of mineral elements in physiological diseased leaves of newhall navel orange were comparatively analyzed,then the effect of element deficiency on the concentrations of soluble sugar,protein and amino acids in the diseased leaves were studied.The results indicated that concentrations of K in the leaves of disease No.1,concentrations of Mg and Mn in the leaves of disease No.2,concentrations of Zn and Mg in the leaves of disease No.3,and concentrations of mineral element Mn in the leaves of disease No.4 were lower than those of normal leaves.The contents of soluble sugar,protein and amino acids in four kinds of physiological diseased leaves decreased obviously in compared to the normal leaves.Therefore,element deficiency can affect the nutrient metabolism of navel orange leaves.Among the four elements,K deficiency would reduce the leaf content of soluble sugar most significantly,while Zn deficiency reduce the leaf concentrations of soluble protein together with amino acids most abviously.

关 键 词：缺素 可溶性蛋白质 可溶性氨基酸 可溶性糖 

分 类 号：S666.4[农业科学—果树学]