主干一次和二次环剥对葡萄树体营养及其分配规律的影响  

Effects of Trunk Girdling Once and Twice on Tree's Nutrition Status and Its Allocation Regularity of Grape

作　　者：张永福[1,2] 刘佳妮[1,2] 任禛[1,2] 韩丽[1,2] 牛燕芬[1,2] 姚丽媛[1,2] 

机构地区：[1]昆明学院农学院,云南昆明650214 [2]云南省高校都市型现代农业工程研究中心,云南昆明650214

出　　处：《贵州农业科学》2013年第11期156-160,共5页Guizhou Agricultural Sciences

基　　金：云南省教育厅科学研究基金项目"AMF对不同树势葡萄品种生长势的调控机制"(2012Z097);昆明学院引进人才科研项目"葡萄品种树势差异的相关机制研究"(YJL11030;YJL12002);昆明学院科学研究项目"环剥对葡萄果实品质及树体营养影响的研究"(XJ11L005)

摘　　要：为探明主干一次和二次环剥对葡萄树体营养及其分配规律的影响,以玫瑰蜜葡萄为试材,通过对主干进行一次和二次环剥,分析对剥痕上部的叶片、枝条和剥痕下部根系的碳氮营养、矿质营养及其分配规律的影响。结果表明,环剥可显著提高剥痕上部枝叶的可溶性糖和淀粉等非结构碳含量,降低可溶性蛋白质和氮素营养含量,使碳氮比显著提高,其中一次环剥后叶的碳氮比峰值为9.04,二次环剥为5.35,而同一时期对照仅为4.89。环剥不仅显著降低了根系可溶性糖和淀粉等非结构碳含量,还显著降低了可溶性蛋白质和氮素营养含量,碳氮比也有不同程度的降低,其中一次环剥后其碳氮比的最低值仅为1.16,二次环剥为3.06,而同一时期对照为3.15。对碳氮营养的影响,一次环剥显著大于二次环剥。环剥还显著降低了叶片、枝条和根系中的磷、钾、铁、铜的含量。其中二次环剥对枝条、叶片中铁和铜元素的影响较大,且第一次采样的含量差异显著,叶片中的铁含量为75.05μg/g DW,而对照为85.29μg/g DW;枝条中的铁含量为76.45μg/g DW,铜含量为7.82μg/g DW,而对照分别为95.96μg/g DW和10.74μg/g DW。To explore the effects of trunk girdling once and twice on tree＇s nutrition status and its allocation regularity of grape,Trees of Rose Honey grape were used to examine the effects of on the contents of carbon and nitrogen nutrition,mineral nutrition of leaves,branches above slash-cut and roots below slash-cut and its allocation regularity by trunk girdling once and twice.The results showed that girdling could significantly improve the content of non-structural carbon such as soluble sugar and starch of leaves,branches above slash-cut,and decrease the contents of soluble protein and total nitrogen,increase significantly carbon-nitrogen ratio,one of which peak of leaf carbon-nitrogen ratio was 9.04 after girdling once,5.35 girdling twice,while control during the same period was only 4.89.On the other hand,girdling could not only significantly decrease the content of non-structural carbon such as soluble sugar and starch of roots,but also significantly decrease the contents of soluble protein and total nitrogen,so that carbon-nitrogen ratio suffered some degree of lowered.Thereinto,after girdling once the lowest value of its carbon-nitrogen ratio was only 1.16,3.06 girdling twice,while control was 3.15 in the same period.Trunk girdling once on the influence of carbon nutrition was significantly greater than trunk girdling twice.Moreover,girdling could also significantly decrease the contents of phosphorus,potassium,ferrum and copper of leaves,branches and roots,thereinto,girdling twice on the influence of the contents of ferrum and copper were significantly greater.And the contents of the first sampling had significant difference,the iron content of the leaves 75.05 μg/g DW,and control was 85.29 μg/g DW; the iron content of branches was 76.45 μg/g DW,copper 7.82 μg/g DW,while the control was 95.96 and 10.74 μg/g DW,respectively.

关 键 词：葡萄 环剥 树体 营养 分配规律 

分 类 号：S663.1[农业科学—果树学]