缺硼条件下两种不同砧木“纽荷尔”脐橙矿质元素含量变化的比较  

Changes in mineral element contents of 'Newhall' navel orange(Citrus sinensis Osb.) grafted on two different rootstocks under boron deficiency

作　　者：刘桂东[1] 姜存仓[1] 王运华[1] 彭抒昂[2] 钟八莲 曾庆銮 袁水秀 

机构地区：[1]华中农业大学微量元素研究中心,湖北武汉430070 [2]华中农业大学园艺林学学院,湖北武汉430070 [3]江西省赣州市果业局,江西赣州341401 [4]江西省赣州市信丰县嘉定镇果茶站,江西信丰341600

出　　处：《植物营养与肥料学报》2011年第1期180-185,共6页Journal of Plant Nutrition and Fertilizers

基　　金：国家支撑计划"赣南脐橙非病原性生理病害的成因研究与防治示范"(2007BAD61B01);国家支撑计划"果树蔬菜高效施肥技术模式研究"(2008BADA4B05)资助

摘　　要：采用溶液培养试验,研究了缺硼对两种不同砧木"纽荷尔"脐橙硼、锌、钙、镁和钾元素含量变化。结果表明,缺硼显著降低了枳壳砧木"纽荷尔"脐橙体内硼含量而对锌含量影响不大;相反,缺硼对枳橙砧木脐橙体内硼含量的影响不是很大,而显著降低了其叶片中锌的含量。这可能是缺硼条件下枳壳砧木脐橙容易出现缺硼症状,而枳橙砧木脐橙容易出现缺锌症状的原因之一。与对照相比,缺硼处理的枳壳砧木脐橙叶的钙含量明显增加;而根的钾含量明显高于枳橙砧木橙根。这些结果与枳壳砧木脐橙对硼更敏感有一定的关系。缺硼对镁含量的影响两种砧木间基本没有差异。The hydroponic method was used to study the changes in boron（B）,zinc（Zn）,calcium（Ca）,magnesium（Mg） and potassium（K） concentrations of ＇Newhall＇ navel orange（Citrus sinensis Osb.） grafted on citrange[C.sinensis（L.） Osb.× Poncirus trifoliate（L.） Raf.] or trifoliate orange [Poncirus trifoliata（L.） Raf.] under B deficiency.The results show that under the B deficiency,B concentrations of trifoliate orange-grafted plants and Zn concentrations of citrange-grafted plants are significantly decreased,which may be one of the reasons why trifoliate orange-grafted plants are easy to appear symptom of B deficiency and citrange-grafted plants are easy to appear symptom of Zn deficiency under the B deficiency.Compared to the normal B treatment,Ca concentration in leaves of trifoliate orange-grafted plants is increased obviously under the B deficiency,and K concentration in root of trifoliate orange-grafted plants is much higher than that of citrange-grafted plants.These results indicate trifoliate orange-grafted plants are more sensitive to the B deficiency.There are not significantly differences in Mg concentrations between trifoliate orange-grafted and citrange-grafted plants under the B deficiency.

关 键 词：缺硼 砧木 “纽荷尔”脐橙 矿质元素 

分 类 号：S666.4.60[农业科学—果树学]