Physiomorphology of Soybean as Affected by Drought Stress and Nitrogen Application

Table 3

The effect of different irrigation regimes on SPAD at different stages of soybean’s (cv. Boglár) life cycle, averaged among 2017, 2018, and 2019 in Debrecen, Hungary.

Inoculation	Stage	Nonirrigated	Half-irrigated	Fully irrigated
Inoculated	V4	39.1 ± 2.6	38.5 ± 3.1	38.7 ± 2.4
	R2	36.8 ± 4.5	37.1 ± 3.7	37.4 ± 3.4
	R4	38.7 ± 3.8	37.5 ± 4.1	37.6 ± 2.9
	R6	38.2^b ± 4.5	41.4^a ± 2.9	43.3^a ± 3.0
	Average	38.2	38.6	39.3
Noninoculated	V4	39.4 ± 3.1	39.3 ± 2.9	38.5 ± 2.5
	R2	37.1 ± 4.1	38.0 ± 4.0	37.9 ± 3.6
	R4	38.7 ± 3.6	38.6 ± 3.7	38.1 ± 2.8
	R6	38.9^b ± 5.6	41.1^ab ± 3.5	43.6^a ± 4.0
	Average	38.5	39.2	39.5

Different letters indicate significant differences at 0.05 level among irrigation regimes within a certain stage.