【摘要】 长江下游地区30个小麦种质资源材料种于镇江地区农科所。利用4个产量性状资料,根据其表现型值的相似性,用聚类分析法对品种材料进行分类。各个产量性状表现值作为向量,各个种质资源的4个性状表现值作为4维空间,计算各种质资源之间所有可能成对的相似系数。聚类开始以两个关系最为密切的材料聚为一组,随后不断将相似水平最大的组、品种聚合,直至最后所有品种材料都聚在单一的一个组内。聚类结果,30个种质资源可分为2群（Population）、4类（Type）。类下又分为5个组（Group）。用秩序判别分析法判定了2个新引入种质资源的归组,098×阿芙乐尔判定归属 G₁组,孟27-2-1-3判定归属 G₂组。更多还原

【Abstract】 Thirty wheat (Triticum aestivum L.)cultivars from the Lower Yang-tse Valley were planted in Zhenjiang Agricultural Research Station.According to the similarity of phenotypic responses by cluster analysis,the tested materials were cassfied into groups based on the data of fouryield components,each of which was considered as a vector.Coeffi-cients of correlation were estimated among all possible pairs of cultivarsin a 4-dimensional space.The clustering was started by putting twoclosest cultivars into one cluster and the process was repeated over andover again until finally all cultivars were grouped into one single cluster.The tested cultivars were then clustered into two populations,four typesand five groups.In addition,two newly introduced wheat germplasmswere discriminated to the above mentioned groups by a discriminatory ana-lysis.The hybrid line 098 X A(?)popa was discriminated into group 1,and Meng 27-2-1-3 into group 2.更多还原