TABLE 2.

Additive–genetic correlation and narrow-sense heritability (diagonal) from a multitrait mixed model for physiological and phenological variables in a maturity-controlled panel of soybean.

Trait	Ei	HI	GY	RUE	AGR40	R8	R1	R5	RL	SFL	LAI	K	A	iWUE
Ei	0.65
HI	0.07	0.68
GY	0.11	0.62	0.82
RUE	–0.35	–0.14	0.20	0.36
AGR40	0.94	0.11	0.12	–0.27	0.71
R8	–0.41	0.48	0.49	0.16	–0.33	0.69
R1	0.12	–0.32	–0.61	–0.35	0.05	–0.26	0.78
R5	–0.08	–0.55	–0.41	0.13	–0.05	0.17	0.55	0.71
RL	–0.28	0.50	0.71	0.31	–0.19	0.73	–0.85	–0.29	0.84
SFL	–0.47	0.30	0.29	0.07	–0.43	0.69	–0.18	0.15	0.51	0.61
LAI	0.23	–0.10	0.30	–0.09	0.30	0.26	–0.02	0.30	0.16	–0.27	0.56
K	0.67	–0.04	–0.05	–0.33	0.64	–0.29	0.02	–0.05	–0.16	–0.57	0.37	0.43
A	–0.03	0.72	0.43	–0.12	–0.08	0.09	–0.27	–0.63	0.24	0.06	–0.18	–0.31	0.20
iWUE	0.02	–0.18	–0.02	0.25	0.11	–0.36	–0.23	–0.43	–0.05	–0.30	–0.14	–0.19	0.12	0.20

Three hundred eighty-one recombinant inbred lines (RILs) evaluated in three environments. A, photosynthesis; AGR40, average canopy coverage growth rate during the first 40 DAP; Ei, efficiency of light interception; GY, grain yield; HI, harvest index; K, light extinction coefficient; iWUE, intrinsic water use efficiency; LAI, leaf area index; R1, days to flowering; R5, days to beginning of seed formation; R8, days to maturity; RL, reproductive period length; RUE, radiation use efficiency; SFL, seed-filling length.