摘要： 对110个苹果栽培品种的分析结果表明，短枝比率、节间长度和荫芽数性状均存在极显著品种间差异，短枝比率与节间长度是二个独立性状，无显著相关性，短枝比率的决定性状是萌芽数。以绝对距离对各性状分别进行动态聚类分析，分别划分为短节间、中节间、长节间，多短枝、中多短枝、少短枝，高萌芽、较高萌芽、较低萌芽、低萌芽等类型。短枝型品种与原品种及其它普通型品种相比，有的属于短节间类型，有的属多短枝类型，但短枝型品种并非全部是短节间、多短枝、高萌芽类型而短枝多、萌芽数多、节间短的品种亦不一定是短枝型。

关键词: 品种资源, 聚类分析, 苹果

Abstract: The AOV of proportion of spurs (PS), number of broke bud (NBB),and internode length (IL) of 110 apple varieties showed significant differences among cultivars.PS and IL would be independent characters due to less correlationship, PS depended on the variation of NBB.The cluster results of the 3 characters each suggested a classification of varieties into short, medium and long IL; abundent, medium and poor PS;and great,more,fairly and less NBB.Some of spur type mutants were short IL types while some of them were abundent PS varieties based on this classification, when compared with its original cultivar or the others.Not all the spur types characterized as short IL,abundent PS and great NBB, and not all the short IL,abundent PS and great NBB’s performed as spur types.

Key words: Malus domestica Borkh, Cultivar resources, Cluster analysis

中图分类号: 

• S661.1