热带作物学报2017，Vol.38Issue(3)：472-477,6.DOI:10.3969/j.issn.1000-2561.2017.03.014
枳、枳橙和甜橙实生苗的钾利用效率比较
Comparison of Potassium Nutrition Efficiency Among Poncirus trifoliata, Citrange and Citrus sinensis Seedings
摘要
Abstract
In order to analyze the potassium nutrition efficiency among Poncirus trifoliata,Citrange (Carrizo) and Citrus sinensis (Bingtangcheng),the biomass and the K+ content of various seedings growed in MS medium (20 mmol/L K+) and LK medium (100 μmol/L K+) were measured separately.The results showed that DW (dry weight) and the K+ content of Citrange root were significantly higher than that of Poncirus trifoliate both on MS medium or LK medium.Meanwhile,no obvious distinction of the DW was detected from Citrange and Citrus sinensis on MS medium,but the K+ content of Citrange in roots elevated clearly than Citrus sinensis.Whether in MS medium or in LK medium,there was not significant difference in shoot DW among Poncirus trifoliata,Citrange and Citrus sinensis seedings,but K+ content in shoot showed a trend Citrus sinensis ＞ Citrange ＞ Poncirus trifoliata seedings.All these suggested Citrange was better than Poncirus trifoliata as Citrus rootstock in terms of potassium nutrition efficiency.In addition,as a heterosis,the K+-uptake ability of Citrange was also higher than that of Citrus sinensis.关键词
钾利用效率/柑橘砧木/枳/枳橙/甜橙Key words
potassium efficiency/citrus rootstock/Poncirus trifoliate/citrange/Citrus sinensis分类
农业科技引用本文复制引用
孔佑涵,苑平,李先信,李卫东,吴娟娟..枳、枳橙和甜橙实生苗的钾利用效率比较[J].热带作物学报,2017,38(3):472-477,6.基金项目
湖南省自然科学基金(No.14JJ6049) （No.14JJ6049）
湖南省农业科学院果树品种改良与优质高效栽培技术创新团队(No.2014td04) （No.2014td04）
农业财政资金项目“湘科一号脐橙推广应用”. （）
