Response of Rice Genotypes to Weed Competition in Dry Direct-Seeded Rice in India

Table 5

Correlation among different traits in partial weedy 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	0.61
Gr	0.53	0.62
TGW	0.33	0.18	0.00
SS	−0.47	−0.34	−0.39	−0.38
Ht	0.23	0.01	−0.17	0.78	−0.24
CI	0.71	0.32	0.26	0.21	−0.49	0.17
RYL	−0.84	−0.51	−0.31	−0.41	0.26	−0.42	−0.69
WP	−0.56	−0.29	−0.27	−0.34	0.32	−0.20	−0.78	0.65
LAI	0.51	0.14	0.14	0.59	−0.62	0.63	0.60	−0.39	−0.40
VS	0.22	0.08	−0.10	0.62	−0.41	0.70	0.35	−0.30	−0.17	0.72
RW	0.70	0.63	0.38	0.55	−0.47	0.33	0.58	−0.64	−0.56	0.48	0.37
RV	0.70	0.63	0.38	0.55	−0.47	0.33	0.58	−0.64	−0.56	0.48	0.37

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.