Physiomorphology of Soybean as Affected by Drought Stress and Nitrogen Application

Table 1

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

Inoculation	Stage	0N	35N	105N
Inoculated	V4	38.3 ± 2.6	38.5 ± 2.3	39.6 ± 3.1
	R2	35.9 ± 4.3	37.5 ± 3.7	37.9 ± 3.3
	R4	36.2^b ± 3.6	38.1^a ± 3.1	39.6^a ± 3.3
	R6	39.4^b ± 5.1	41.2^ab ± 4.2	42.3^a ± 3.7
	Average	37.5	38.8	39.9
Noninoculated	V4	38.0^b ± 2.9	38.9^ab ± 2.5	40.2^a ± 2.8
	R2	36.6 ± 4.5	37.8 ± 4.6	38.5 ± 3.6
	R4	36.8^b ± 2.7	38.1^b ± 2.9	40.5^a±3.4
	R6	40.3 ± 5.5	40.7 ± 5.0	42.6 ± 4.7
	Average	37.9	38.9	40.4

Different letters indicate significant differences at 0.05 level among fertilization treatments within a certain stage.