这是我用spss做Duncan检验的结果,请问该怎么分析.脱氢酶1组号NSubset for alpha = 0.051 2Duncana332.6222972200134.6780827533 4.678082753323 6.1196116900Sig..159

这是我用spss做Duncan检验的结果,请问该怎么分析.脱氢酶1组号NSubset for alpha = 0.051 2Duncana332.6222972200134.6780827533 4.678082753323 6.1196116900Sig..159
这是我用spss做Duncan检验的结果,请问该怎么分析.
脱氢酶1
组号NSubset for alpha = 0.05
1 2
Duncana332.6222972200
134.6780827533 4.6780827533
23 6.1196116900
Sig..159 .303
Means for groups in homogeneous subsets are displayed.
a Uses Harmonic Mean Sample Size = 3.000.
组号1的那一列说明1和3差异不显著,1和2差异显著；可是组号2那一列又说明2和3差异不显著,这样又表明1和2差异不显著,这不是矛盾的吗?还有如果要标注字母该怎么标?

这是我用spss做Duncan检验的结果,请问该怎么分析.脱氢酶1组号NSubset for alpha = 0.051 2Duncana332.6222972200134.6780827533 4.678082753323 6.1196116900Sig..159
2.6222972200 a；4.6780827533 ab ；6.1196116900 b,大概是这样标!小写有差异,大写有显著差异.完毕