韭菜单株产量与相关性状的灰色关联度分析

The Gray Relational Grade Analysis Between the Yield and the Relative Characters of Individual Leek

利用灰色系统理论中的关联度分析法对韭菜单株产量构成的6个主要性状进行分析。结果表明,韭菜单株产量与其相关性状的关联度为:株高0.6033,叶鞘长0.6380,叶片数0.5977,叶片长0.5904,叶片宽0.4664,叶鞘粗0.6134;关联序为:叶鞘长>叶鞘粗>株高>叶片数>叶片长>叶片宽。各性状的灰色权重为w1∶w2∶w3∶w4∶w5∶w6=0.1719∶0.1818∶0.1703∶0.1682∶0.1329∶0.1748。

Based on the theory of gray relational system,the analysis was made between the per-plant yield and the 6 relative agronomic characters in 6 leeks varieties.The results showed that the relational grade between the yield and each characters is as follows plant-height 0.603 3,leaf sheath length 0.638 0,leaf number0.597 7 ,leaf length0.590 4,leaf width0.466 4 ,leaf sheath hickness 0.613 4.The relational sequence is long sheath〉 sheath thickness〉plant-height〉leafnumber〉leaflength〉leafwidth.The gray weight of each characters is wl：w2：w3：w4：ws：w6=0.171 9：0.181 8：0.170 3： 0.168 2：0.132 9：0.174 8.