摘要
本文首次用星座图对玉米自交系10个数量性状进行了聚类,用计算所得的综合指标值较为客观地度量玉米自交系的综合性状,并把55个玉米自交系划为综合性状各异的6个类群。权重对分类结果影响较大,而当主指标确定以后,不等指标对分类的影响存在一定的稳定性。
55 inbred lines of corn were classified into 6 clusters different in complex characters through constellation graphical cluster analysis of 10 quantitative characters. The complex index val ue could indict the complex character of inbred line of corn objectively. The main factor influenc ing the classification was weight,not different number of indexes.
出处
《河南农业大学学报》
CAS
CSCD
1992年第4期375-379,405,共6页
Journal of Henan Agricultural University
关键词
玉米
自交系
星座图聚类
性状
分析
corn
inbred line
constellation graphical cluster analysis
complex character
complex index value
gehetic difference
