Table 6.

Pearson’s correlation matrix for ten root traits and three shoot traits in three soybean genotypes (#054, #055, and #071) grown in soil-filled rhizoboxes at 38 days after sowing (lower left section) and 81 days after sowing (upper right section).

-	RL	RD	RM	SRL	RSM	HL	SH	SM	RL-Upper	RL-Lower	RL-Fine	RL-Coarse	RLR-Upper/Lower
RL	-	0.116	0.879 **	0.591	0.750 *	0.637	0.583	0.807 **	0.991 **	0.958 **	0.990 **	0.858 **	−0.385
RD	0.377	-	0.053	0.181	0.256	−0.014	0.187	−0.107	0.073	0.201	0.129	0.031	−0.033
RM	0.865 **	0.621	-	0.138	0.860 **	0.885 **	0.292	0.952 **	0.828 **	0.935 **	0.862 **	0.781 *	−0.545
SRL	0.504	−0.271	0.020	-	0.117	−0.161	0.769 *	0.065	0.651	0.425	0.602	0.451	0.108
RSM	0.012	0.408	0.459	−0.785 *	-	0.819 **	0.333	0.670 *	0.694 *	0.827 **	0.762 *	0.574	−0.552
HL	0.913 **	0.298	0.866 **	0.265	0.191	-	0.179	0.830 **	0.587	0.707 *	0.644	0.495	−0.332
SH	0.604	0.387	0.314	0.599	−0.477	0.479	-	0.203	0.595	0.522	0.649	0.247	−0.072
SM	0.949 **	0.330	0.762 *	0.604	−0.218	0.838 **	0.667 *	-	0.761 *	0.858 **	0.779 *	0.764 *	−0.509
RL-upper	0.998 **	0.356	0.833 **	0.554	−0.046	0.893 **	0.633	0.956 **	-	0.912 **	0.983 **	0.845 **	−0.286
RL-lower	0.596	0.450	0.850 **	−0.274	0.668 *	0.756 *	0.011	0.457	0.538	-	0.945 **	0.834 **	−0.575
RL-fine	0.998 **	0.336	0.844 **	0.528	−0.014	0.917 **	0.616	0.948 **	0.997 **	0.581	-	0.779 *	−0.380
RL-coarse	0.953 **	0.576	0.925 **	0.349	0.152	0.845 **	0.509	0.902 **	0.944 **	0.647	0.935 **	-	−0.338
RLR-upper/lower	−0.493	−0.253	−0.761 *	0.365	−0.770 *	−0.690 *	0.186	−0.314	−0.438	−0.903 **	−0.484	−0.513	-

Correlation is significant if p ≤ 0.05 (*) or p ≤ 0.01 (**) (see Table 1 for trait descriptions and units).