基于多元统计的不同黄瓜品种叶片矿质元素含量分析  

Analysis of mineral elements content in different cucumber varieties based on multivariate statistics

作　　者：王红香 张帆 刘海学 吴惠惠 WANG Hongxiang;ZHANG Fan;LIU Haixue;WU Huihui(College of Horticulture and Landscape,Tianjin Agricultural University,Tianjin 300392,China)

机构地区：[1]天津农学院园艺园林学院,天津300392

出　　处：《中国瓜菜》2024年第2期38-45,共8页China Cucurbits And Vegetables

基　　金：天津市教委社科重大项目(2019JWZD03)。

摘　　要：为探明不同黄瓜品种(含品系)叶片矿质元素含量的差异,以不同黄瓜品种叶片作为试验材料,利用原子吸收分光光度计测定8种矿质元素含量,并对结果进行多元统计分析与比较。结果表明,不同黄瓜品种叶片中均具有较丰富的矿质元素,其含量分布为K>Ca>Mg>Na>Fe>Zn>Mn>Cu;K和Na元素含量最高的品种为18-津绿60,Ca和Mg元素含量最高的品种为津早圆润,Fe和Mn元素含量最高的品种为S312,Zn元素含量最高的品种为20-津绿80,Cu元素含量最高的品种为WGP91。不同黄瓜品种叶片的矿质元素比例也存在差异,其中K∶Na和Fe∶Mn差异较大,而Ca∶Mg和Zn∶Cu差异较小。20个黄瓜品种可聚类成四类:第一类K、Na、Mn、Cu、Zn、Fe含量较高,但Ca、Mg含量较低;第二类Ca、Mg含量较高,但K含量较低;第三类K含量较高,但Ca含量较低;第四类K、Ca、Mg含量较高,但品种S29的Mg含量偏低。相关分析表明,Mg和Ca、Na和K、Mn与Fe之间存在显著的正相关。主成分分析表明,品种S312、津早圆润和20-津绿60矿质元素含量综合得分排前3位,而S26、18-津绿60和19-津绿80排后3位。研究结果可为黄瓜品种选育及科学合理施肥提供理论依据和技术支撑。In order to investigate the differences in the mineral element content of different cucumber varieties(including strains),a multivariate statistical approach was used to examine and compare the eight mineral element content of the leaves of various cucumber varieties,as assessed by an atomic absorption spectrophotometer.The results shown that many cucumber varieties have high mineral element content,with a pattern of K>Ca>Mg>Na>Fe>Zn>Mn>Cu.The variety with the highest content of K and Na,Ca and Mg,Fe and Mn,Zn,and Cu is 18-Tsumegreen-60,Tsubasa Morning Round,S312,20-Tsumegreen 80,and WGP91,respectively.There are also differences in the proportion of mineral elements in the leaves of different cucumber varieties,with significant differences in K:Na and Fe:Mn,while small differences in Ca:Mg and Zn:Cu.Four groups of 20 cucumber types may be identified:the first group has lower Ca and Mg concentration but greater K,Na,Mn,Cu,Zn,and Fe content.The K content is lower in the second category,while the Ca and Mg content is higher.The third group has higher K content and lower Mg content.The fourth group has higher K,Ca,and Mg content but lower Mg content of S29.According to correlation analysis,a significant positive correlation existed between Mg and Ca,Na and K,and Mn and Fe.Principal component analysis revealed that the top three combinations of mineral element content scores were S312,Jin Early Round,and 20-Zin Green 60,while the bottom three combinations were S26,18-Zin Green 60,and 19-Zin Green 80.The research results may provide a theoretical foundation and practical support for scientific and acceptable fertilization as well as cucumber variety breeding.

关 键 词：黄瓜叶片 矿质元素 聚类热图 主成分分析 相关分析 

分 类 号：S642.2[农业科学—蔬菜学]