Physiomorphology of Soybean as Affected by Drought Stress and Nitrogen Application

Table 4

Correlation coefficient of SPAD, NDVI, and LAI traits at different stages with irrigation.

Inoculation	Stage	SPAD	NDVI	LAI
Inoculated	V4	−.062	.107	−.009
	R2	.070	−.028	.143
	R4	−.130	.102	.456
	R6	.472	.240	.194
	Overall	.109	.111	.112
Noninoculated	V4	−.124	−.108	−.146
	R2	.069	−.201	.012
	R4	−.075	.083	.252
	R6	.397	.126	.134
	Overall	.149	−.019	.132

Correlation is significant at the 0.05 level (2-tailed). Correlation is significant at the 0.01 level (2-tailed).