Table 4 Differences in consciousness of the appropriateness of the measurement standard for the root diameter of landscape trees among the plactitioner of planting construction, in S. Korea.(one-way, ANOVA)

Division	Average	Standard deviation	Significance probability
By age	2.61	0.778	0.040*
By occupation	2.62	0.873	0.267
By job type	2.56	0.834	0.720
By job position	2.59	0.846	0.432
By working area	2.70	0.618	0.632
By work experience	2.51	0.883	0.133

P <0.05