TABLE 3.

Correlation coefficients of root traits between the growing environments.

Traits	IHC-vs-OHC	IHC-vs-OPC	OHC-vs-OPC
TRL	0.335**	0.059	0.292**
TRA	0.256**	0.066	0.377***
ARD	0.189*	0.063	0.093
TRV	0.162*	0.103	0.337***
NRT	0.271**	0.078	0.323***
RDW	0.124	0.016	0.378***
V	0.421	0.385	0.515

V, Canonical correlation coefficient; *, Significant at p ≤ 0.05; **, Significant at p ≤ 0.01; ***, Significant at p < 0.001.