Abstract：Taking 16 cultivars of Nantong lentils〔Lablab purpureus（L.）Sweet〕as experimental material，we analyzed the principal components of 10 major agronomic traits using principal component analysis and cluster analysis to investigate the genetic distance and the main factors affecting yield of lentils．The results showed that under the premise of keeping 84.889 3% of information amount，10 agronomic traits could be simplified as the following 4 principal components：grain type factor，grain weight factor Ⅰ，pod type factor and grain weight factor Ⅱ．During the breeding process，the reasonable principal component values should be determined combining with the breeding objectives．The genetic distances between these 16 varieties were 0.886 6-7.775 7，and the average was 4.047 4．These 16 varieties could be divided into 4 classes，pod color and geographical source could not be used as the basis for judging germplasm genetic differences.
姜永平, 邱海荣, 章洪娟, 宋益民. 南通扁豆品种主要农艺性状的主成分与聚类分析[J]. 中国蔬菜, 2015, 1(6): 53-.
JIANG Yong-Ping, QIU Hai-Rong, ZHANG Hong-Juan, SONG Yi-Min. Analysis of Principal Component and Cluster Analysis of Main Agronomic Traits of Nantong Lentils. , 2015, 1(6): 53-.
