Table 4.

Summary of allometric analysis of root-shoot system traits under field condition.

Traits	RL	RSA	RAD	RV	L/V	RA	RDW	SRL	RMD	#Tips	#forks	RXA	ALMXA	TCA	AA	SA
RL	1	0.287	0.323	0.253	0.133	0	0.803	0.77	0.217	0.607	0.23	0.893	0.857	0.943	0.867	0.887
RSA	0.287	1	0.017	0.377	0.11	0.153	0.597	0.607	0.053	0.303	0.327	0.773	0.84	0.797	0.83	0.907
RAD	0.323	0.017	1	0.743	0.287	0.867	0.79	0.783	0.38	0.907	0.28	0.183	0.253	0.277	0.797	0.79
RV	0.253	0.377	0.743	1	0.05	1	0.987	0.81	0.913	1	0.993	0.977	0.98	0.957	1	0.987
L/V	0.133	0.11	0.287	0.05	1	0.963	0.99	0.997	0.847	0.923	0.97	0.863	0.993	0.85	0.91	0.987
RA	0	0.153	0.867	1	0.963	1	0	0.033	0.007	0.08	0.03	0.21	0.21	0.253	0.167	0.657
RDW	0.803	0.597	0.79	0.987	0.99	0	1	0.867	0.24	0.943	0.35	1	1	1	1	1
SRL	0.77	0.607	0.783	0.81	0.997	0.033	0.867	1	0.713	0.893	0.7	1	1	1	1	1
RMD	0.217	0.053	0.38	0.913	0.847	0.007	0.24	0.713	1	1	0.97	1	1	1	1	1
#Tips	0.607	0.303	0.907	1	0.923	0.08	0.943	0.893	1	1	0.823	0.947	0.94	0.963	0.967	0.667
#forks	0.23	0.327	0.28	0.993	0.97	0.03	0.35	0.7	0.97	0.823	1	1	1	1	1	1
RXA	0.893	0.773	0.183	0.977	0.863	0.21	1	1	1	0.947	1	1	0.463	0.12	0.977	0.047
ALMXA	0.857	0.84	0.253	0.98	0.993	0.21	1	1	1	0.94	1	0.463	1	0.927	0.983	0.387
TCA	0.943	0.797	0.277	0.957	0.85	0.253	1	1	1	0.963	1	0.12	0.927	1	0.803	0.033
AA	0.867	0.83	0.797	1	0.91	0.167	1	1	1	0.967	1	0.977	0.983	0.803	1	0.3
SA	0.887	0.907	0.79	0.987	0.987	0.657	1	1	1	0.667	1	0.047	0.387	0.033	0.3	1

The P-values of allometric cross comparison of root morphological, anatomical and shoot traits. P-values < 0.05 indicate a significant allometric relation between the traits calculated by bootstrapping (boot = 300). See Table 1 for traits description.