Table 2 Correlation analysis between yield and yield-component traits in BC and RIL populations in four BC/M trials and three BC/P trials.

Trait	Env.^a	SY		LY		BNP		BW		LP
Trait	Env.^a	BC/M, BC/P	RIL-M, RIL-P	BC/M, BC/P	RIL-M, RIL-P	BC/M, BC/P	RIL-M, RIL-P	BC/M, BC/P	RIL-M, RIL-P	BC/M, BC/P	RIL-M, RIL-P
SY	2015E1/2016E1	0.11 ^b	0.44
	2015E2/2015E2	0.16	0.31
	2016E2/2016E2	0.19	0.45
LY	2015E1/2016E1	0.98, 0.97^c	0.96, 0.97	0.10	0.43
	2015E2/2015E2	0.99, 0.98	0.98, 0.98	0.15	0.31
	2016E2/2016E2	0.97, 0.98	0.96, 0.96	0.21	0.43
BNP	2015E1/2016E1	0.82, 0.45	0.72, 0.42	0.75, 0.46	0.70, 0.45	0.20	0.43
	2015E2/2015E2	0.96, 0.96	0.95, 0.96	0.96, 0.95	0.95, 0.95	0.11	0.36
	2016E2/2016E2	0.42, 0.47	0.59, 0.48	0.41, 0.48	0.62, 0.48	0.07	0.32
BW	2015E1/2016E1	0.06, 0.27	0.27, 0.34	0.04, 0.22	0.19, 0.25	−0.01, −0.05	0.01, −0.02	0.16	0.47
	2015E2/2015E2	0.22, 0.37	0.24, 0.37	0.19, 0.33	0.19, 0.33	−0.05, −0.03	−0.06, 0.11	0.28	0.42
	2016E2/2016E2	0.10, 0.14	0.38, 0.40	0.03, 0.08	0.29, 0.30	0.01, −0.23	−0.09, −0.08	0.33	0.49
LP	2015E1/2016E1	0.21, 0.07	0.13, −0.05	0.36, 0.28	0.20, 0.17	0.11, 0.18	0.22, 0.13	−0.17, −0.23	−0.39, −0.36	0.49	0.72
	2015E2/2015E2	−0.01, −0.10	0.08, −0.10	0.15, 0.09	0.26, 0.09	0.03, −0.29	0.15, −0.29	−0.14, −0.02	−0.24, −0.02	0.27	0.62
	2016E2/2016E2	0.11, 0.15	0.04, 0.02	0.35, 0.34	0.28, 0.24	0.07, 0.15	0.20, 0.11	−0.26, −0.29	−0.30, −0.37	0.25	0.42

Critical values of correlation coefficients at probabilities of 0.05 and 0.01 are 0.14 and 0.19, respectively. ^aEnvironments are presented as (of BC/M trial)/(of BC/P trial). ^bCorrelation coefficients within underline referred to the measurements of the same trait between BC/M trial and BC/P trial. ^cCorrelation coefficients between two traits in each cell are presented as “(in BC/M trial in the environment), (in BC/P trial in the environment)”.

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