【作者】 刘桂东； 姜存仓； 王运华； 彭抒昂； 钟八莲； 曾庆銮； 袁水秀；

【Author】 LIU Gui-dong~1 JIANG Cun-cang~(1※) WANG Yun-hua~1 PENG Shu-ang~2 ZHONG Ba-lian~3 CENG Qing-luan~3 YUAN Shui-xiu~4 (1 Microelement Research Center,Huazhong Agricultural University,Wuhan 430070;2 College of Horticulture and Forestry Science,Huazhong Agricultural University,Wuhan 430070;3 Fruit Bureau of Ganzhou City, Ganzhou,Jiangxi 341401;4 Fruit Bureau of Xinfeng Town,Ganzhou,Jiangxi 341600)

【机构】 华中农业大学微量元素研究中心； 华中农业大学园艺林学学院； 江西省赣州市果业局； 江西省赣州市信丰县嘉定镇果茶站；

【摘要】 采用水培试验,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差异。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;枳橙砧木则与此相反,缺硼对其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;枳壳砧木脐橙根的钾含量明显高于枳橙砧木的;这些结果或许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。更多还原

【Abstract】 The hydroponic method was used to study the changes in boron(B),zinc(Zn),calcium(Ca), magnesium(Mg) and potassium(K) concentrations in ’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 boron deficiency.The results showed that B deficiency dramatically decreased B concentrations of trifoliate orange-grafted plants and Zn concentrations of citrange-grafted plants, which may be one reason of 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 B deficiency. Compared to control,Ca concentration in leaves of trifoliate orange-grafted plants increased obviously under B deficiency;and K concentration in root of trifoliate orange-grafted plants was much higher than that of citrange-grafted plants;trifoliate orange-grafted plants are more sensitive compared to citrange, which may be relation to these results.There were not significantly differences in Mg concentrations between trifoliate orange-grafted plants and citrange-grafted plants under B deficiency.更多还原