Abstract: 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+……+AiZXp,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.

Key words: Soybean, Molybdenum, Enrichment, Transport, Principal component analysis, Cluster analysis

CLC Number: 

• S565.03