不同大豆品种钼富集因素的主成分分析和聚类分析

Principal Component Analysis and Cluster Analysis of Molybdenum Enrichment Factors in Different Soybean

探究不同大豆品种钼吸收和转运差异及其影响因素。以26个大豆品种为试验材料,设置低钼和高钼2个钼水平,田间条件下生长至成熟期分籽粒、豆荚、茎秆、叶片和根等各部位取样,测定不同部位干物质重和钼含量,并通过计算得出不同部位钼迁移系数,然后对不同部位钼含量和钼迁移系数等13个指标进行主成分分析,筛选出了3个影响钼富集的主成分,利用筛选出的3个主成分结合数学模型:Fi=A1ZX1+A2ZX2+……+Ai ZXp进行计算,并得出其主成分值以及其排序,利用3个主成分值在SPSS软件中进行聚类分析。结果表明:26个大豆品种被分为两类,第一类大豆品种有:13028、13030,籽粒具有较高的钼富集能力;第二类大豆品种有1301、1302、1303、1304、1305、1306、1308、1309、13011、13012、13013、13014、13015、13016、13017、13018、13019、13020、13021、13023、13024、13025、13026、13027,豆荚获取钼能力较强。为将来大豆钼吸收转运研究提供了一定的研究依据,并且提供了良好的试验材料。

To explore the differences of molybdenum absorption and transport between various soybean cultivars and the main influence factors of molybdenum absorption and transport. Research method: This research took 26 soybean cultivars as material,two Mo levels( Mo deficient or Mo sufficient) were set. All soybean cultivars were grown to mature period,then the molybdenum concentration and dry weight of each part were sampled and analyzed,and molybdenum transport coefficient between different parts were calculated. The 13 indexes of molybdenum content of each part and molybdenum transport coefficient were chosen to conduct principal component analysis. By principal component,13 indexes belong to 3 principal components. Three principal components were put into the formula such as Fi = A1ZX1 + A2ZX2+ …… + Ai ZXp,then we got the value and rank of three principal components. Furthermore,the result of principal component was used to cluster analysis,26 soybean varieties were clustered into 2 categories: the first kind of soybean variety were 13028,13030,defined as having a high ability of molybdenum enrichment in seed,the second kind of soybean variety were1301,1302,1303,1304,1305,1306,1308,1309,13011,13012,13013,13014,13015,13016,13017,13018,13019,13020,13021,13023,13024,13025,13026,13027,defined as having a strong ability of molybdenum enrichment in pod. The research results offered references for further study on the characteristic of molybdenum absorption and transport,and offered good experimental material about the differences of molybdenum between divers soybean cultivars.