【摘要】 对甘肃连城国家级自然保护区白青杄、青海云杉等4种类型云杉属植物种子长、针叶长等10个表型性状采用方差分析、相关分析和聚类分析等方法,分析这4种类型植物的表型多样性,以便对该保护区内分类地位不明确的麻衣松进行分类地位的确定.结果表明,白青杄和黑青杄的表型多样性比较丰富,4种类型的平均变异系数由大到小依次为黑青杄、白青杄、麻衣松和青海云杉.白青杄和黑青杄的表型性状间大多数呈极显著或显著相关,麻衣松和青海云杉的大多数表型性状间相关性不显著.用分层聚类的方法分别对4种类型的表型性状进行聚类分析,结果表明,白青杄和黑青杄的表型性状可分为4类,麻衣松和青海云杉的表型性状可分为3类;麻衣松与白青杄、黑青杄不属于同一类,而与青海云杉比较相近.更多还原

【Abstract】 Using variance analysis,correlation analysis and hierarchical cluster analysis,we analyze 10 phenotypic variations of 4 Picea spp.in Liancheng National Nature Reserve of Gansu,and discuss phenotypic diversity of these 4 categories so as to make sure systematic classification status of Mayisong whose classification status is always uncertain.The results show that there is rich in morphological diversity of Baiqingqian and Heiqingqian;mean variation index of 4 species is Heigqingqian,Baiqingqian Mayisong and Picea carassifolia from big to small in order.The phenotypic characters of Heigqingqian and Baiqingqian are almost remarkable or extreme correlation;while those of Mayisong and Picea carassifolia are not very extreme correlation.The hierarchical cluster analysis shows that phenotypic character of Baiqingqian and Heiqingqian can be divided into 4 groups and that of Mayisong and Picea carassifolia can be divided into 3 groups.Therefore,we reach a preliminary conclusion that Mayisong doesn’t belong to either Baiqingqian or Heiqingqian,but it is similar with Picea carassifolia.更多还原