不同芥蓝品种产量及品质性状聚类分析

采用系统聚类法对27个芥蓝商品品种的形态、产量及品质性状进行聚类分析。结果表明，27个芥蓝品种在形态和产量性状上分为四个类群，第Ⅱ类群又可分为三个亚群，其中Ⅱ-1亚群的3个品种的株型和产量表现优良。27个芥蓝品种在品质性状上分为四个类群，第Ⅰ类群又可分为两个亚群，其中Ⅰ-1亚群的10个品种的品质综合表现优良。芥蓝各品种在熟性、形态、产量和品质等方面差异明显，在实际中需根据生产目标选择适宜的品种。

Cluster Analysis on Yield and Quality Characters of Different Chinese kale Varieties

Cluster analysis on plant morphology, yield and quality characters of 27 commercial Chinese kale varieties was made. The results showed that, 27 Chinese kale varieties were divided into 4 groups according to morphology and yield characters. Group Ⅱ could further be divided into 3 subgroups, among which 3 varieties in Ⅱ-1 subgroup performed well on plant morphology and yield characters. 27 Chinese kale varieties were divided into 4 groups according to quality characters. Group Ⅰ could further be divided into 2 subgroups, among which 10 varieties inⅠ-1 subgroup performed well on integrated quality characters. The maturity, morphology, yield and quality of Chinese kale varieties were obviously different, thus suitable varieties should be chosen according to production aims in practice.