基于GYT双标图对西北内陆棉区国审棉花品种的分类评价

许乃银, 赵素琴, 张芳, 付小琼, 杨晓妮, 乔银桃, 孙世贤

Retrospective evaluation of cotton varieties nationally registered for the Northwest Inland cotton growing regions based on GYT biplot analysis

XU Nai-Yin, ZHAO Su-Qin, ZHANG Fang, FU Xiao-Qiong, YANG Xiao-Ni, QIAO Yin-Tao, SUN Shi-Xian

图2 我国西北内陆棉区国审棉花品种的GYT双标图的平均性状功能图(a)品种聚类功能图(b) 图2-b中椭圆形虚线包围的品种与基于GYT双标图前两主成分聚类分析的前3个分类相同(聚类图略)。I、II和III分别表示I型品种、II型品种和III型品种。缩写同表1和表2。

Fig. 2 Average superiority index (a) and variety clustering view of GYT biplot (b) based on the national cotton varieties in Northwest inland cotton region of China The dotted ellipses in Fig. 2-b delineate the varieties which are members of the same cluster at the first three levels in the cluster analysis based on the first two PCs of GYT biplot (the cluster dendrogram was omitted here). I, II, and III stand for the three variety types respectively. Abbreviations are the same as those given in Table 1 and Table 2.