几种柑桔砧木幼苗的耐酸性分析  

Analysis on Acid Tolerance of Several Citrus Rootstock Seedlings

作　　者：方治军[1] 杨义伶[1] 黄春辉[1] 辜青青[1] 徐小彪[1] 

机构地区：[1]江西农业大学农学院,南昌330045

出　　处：《中国南方果树》2011年第5期8-11,共4页South China Fruits

基　　金：江西省重大战略产品科技专项(2008AB00600)资助

摘　　要：以不同酸性(pH值1.0、2.0、3.0、4.0、5.0和6.0)营养液处理的枳、酸柚、酸橙、卡里佐枳橙、三湖红桔、新干化红、崇义野桔等7种柑桔砧木幼苗为试材,通过酸害症状观测以及酸害指数为指标的聚类分析,对其耐酸性强弱进行鉴定与分析。结果表明,供试柑桔砧木幼苗的耐酸性可分为3类,耐酸性最强的为枳,平均酸害指数为13.33;耐酸性中等的为酸柚、三湖红桔、新干化红、崇义野桔、卡里佐枳橙,平均酸害指数分别为17.33、17.80、17.58、15.11、17.79,这一类的总平均值为17.88;耐酸性最弱的为酸橙,平均酸害指数达26.22。本研究可为柑桔砧木种质改良提供理论依据,同时为柑桔砧木种质资源的合理开发利用提供参考。Seven citrus rootstock seedlings,Zhi（Poncirus trifoliate（L.） Raf）,Suanyou（Citrus maxima（J.Burman） Merrill）,Suancheng（C.aurantium L.）,Zhicheng（Ruta ＇Citrange＇）,Sanhuhongju（Citrus reticulata Blanco）,Xinganhuahong（C.reticulata×C.aurantium）,and Chongyiyeju（C.reticulata Blanco）,were treated with nutrient solutions of different pH values to test their tolerance to acid.The results showed that these seedlings could be classified into three groups by their tolerance to acid.P.trifoliate（L.） Raf had the strongest acid tolerance by showing a lowest average acid injury index of 13.33%.C.maxima（J.Burman） Merrill,C.reticulata Blanco,C.reticulata×C.aurantium,C.reticulata Blanco,Ruta ＇Citrange＇ showed an median tolerance with an injury index of 17.33%,17.80%,17.58%,15.11%,17.79%,respectively,and the mean acid injury index for this group was 17.88%.C.aurantium L.was the least in acid tolerance for having a high average acid injury index of 26.22%.The results could be valuable references for citrus rootstock improvement and selecting suitable citrus rootstocks in citrus cultivation.

关 键 词：柑桔砧木 幼苗 耐酸性 酸害指数 聚类分析 

分 类 号：S666[农业科学—果树学]