Table 4.

Correlation among different traits in weed-free conditions. The critical value of r was 0.40 at 5% level of significance.

Traits	GY	Pan	Gr	TGW	SS	Ht	CI	RYL	WP	LAI	VS	RW
GY
Pan	0.77
Gr	−0.06	−0.30
TGW	0.13	−0.03	−0.16
SS	−0.36	−0.41	−0.09	−0.39
Ht	−0.05	−0.24	0.11	0.77	−0.28
CI	0.25	0.35	−0.01	0.20	−0.56	0.09
RYL	−0.08	−0.21	−0.02	−0.41	0.44	−0.22	−0.69
WP	−0.02	−0.19	0.28	−0.33	0.32	−0.13	−0.78	0.65
LAI	0.39	0.32	0.05	0.62	−0.66	0.62	0.60	−0.39	−0.40
VS	0.01	−0.04	−0.09	0.60	−0.38	0.59	0.35	−0.30	−0.17	0.72
RW	0.32	0.45	−0.15	0.41	−0.49	0.10	0.58	−0.64	−0.56	0.48	0.37
RV	0.32	0.45	−0.15	0.41	−0.49	0.10	0.58	−0.64	−0.56	0.48	0.37	1.00

GY, grain yield; LAI, leaf area index at 28 DAS; Ht, height; RW, root weight; RV, root volume; Pan, panicle m⁻²; Gr, filled grains panicle⁻¹; TGW, 1000-grain weight; SS, spikelet sterility; CI, weed competitive index; WP; weed biomass; and RYL, relative yield loss.