研究了不同地区、不同品种新疆葡萄树伤流液中矿质元素的含量、特征元素和分布特征。采用电感耦合等离子体发射光谱法测定不同产地、不同品种的新疆葡萄树伤流液中各矿质元素的含量,并采用SPSS 17.0主成分分析法和聚类分析法对测定结果进行特征分析。结果显示:经主成分分析得3个主成分,其累计方差贡献率达92.490%。第一主因子的方差贡献率为60.923%,故确定其所对应的Ca、Mg、P和S是新疆葡萄树伤流液中所含的特征元素。聚类分析将6个样品,基本按品种和地域性聚为2组。说明不同产地、不同品种的葡萄树伤流液中矿质元素呈现一定的选择性累积和地域差异。

To study the contents,characteristic elements and distribution of mineral elements in 6 species of bleeding sap of grape trees from 4 habitats in Xinjiang.The mineral elements of samples were determined by ICP-OES.The principal components analysis and cluster analysis using SPSS 17.0 software were applied to evaluate characteristic elements.Results: After principal component analysis in all samples,three principal factors were gained.The cumulative contribution rate of three principal factors to total variances was 92.490% and the variance contribution of the first factor was 60.923%.These showed that Ca,Mg,P and S were the characteristic elements of bleeding sap from grape tree.After a cluster analysis,samples could be clustered into two groups and the elemental distribution characteristics were related to the habitats and varieties.Mineral elements in bleeding sap from grape tree were related to its variance accumulation and habitats.