11个桂花品种花瓣与叶片中矿质元素含量的比较  

Comparison of Mineral Element Content in Leaves and Petals of 11 Osmanthus fragrans Cultivars

作　　者：林燕青[1] 杨秀莲[1] 凌敏[1] 王良桂[1] 

机构地区：[1]南京林业大学风景园林学院,江苏南京210037

出　　处：《西部林业科学》2015年第4期79-83,共5页Journal of West China Forestry Science

基　　金：国家林业局公益性行业科研专项(201204607);江苏高校优势学科建设工程资助项目

摘　　要：矿质元素是动植物生长发育所必需的元素,为进一步开发富矿质元素、更具食品保健价值和园林应用价值的桂花新品种,用电感耦合等离子体发射光谱仪(ICP-MS)测定了11个桂花品种花瓣与叶片中的钙、镁、铝、锌、铜、铁、砷、铅元素含量,分析了花瓣与叶片中矿质元素的相关性。结果表明:11个桂花品种花叶中重金属元素砷和铅元素积累量未检出,有益矿质元素含量均较高;叶片中主要有益元素钙、锌、铁元素含量最高的分别为速生金桂、苏州浅橙、红桂;花瓣中主要有益元素钙、锌元素含量最高的为白洁,铁元素含量最高的是苏州浅橙;叶片中的铁元素与花瓣中的铁元素呈极显著正相关,叶片中的锌、铜元素均与花瓣中的镁元素呈显著正相关,叶片中的镁元素与花瓣中的铜元素呈显著负相关。Mineral elements are essential for plant growth. In order to develop the new Osmanthus fragrans culti- vars with rich mineral elements, more health value and ornamental value, the mineral elements such as calcium, magnesium, aluminum, zinc, copper, iron, arsenic, lead in petals and leaves 11 O. fragrans cultivars were analyzed by using inductively coupled plasma-optical emission spectrometry （ICP-MS）. The correlation of mineral elements in leaves and petals were also analyzed. The results showed that there were no heavy metals of arsenic and lead. The amounts of healthy elements were high, and the highest amounts of calcium, zinc , copper in leaves took place in ＇ Susheng Jingui＇ , ＇ Suzhou qiancheng＇ , ＇ Honggui＇ , that of calcium, zinc in petals was ＇ Bai- jie＇ , and that of iron in petals was ＇ Suzhou Qiancheng＇. Iron element in leaves and petals had a very significant positive correlation. Zinc, copper elements in leaves positively correlated with magnesium element in petals. Mag- nesium in leaves negatively correlated with copper element in petals.

关 键 词：桂花 叶片 花瓣 矿质元素 相关性 

分 类 号：S685.13[农业科学—观赏园艺]