. 2023 Jan 31;12(3):625. doi: 10.3390/plants12030625

Table 3.

Effects of N treatments on grain-filling parameters in summer maize.

Year	Hybrid	Treatment	T1	T2	T3	V1	V2	V3
Year	Hybrid	Treatment	(Days)			(mg kernel⁻¹ d⁻¹)
2016	ZD958	CK	18.3 b	15.7 b	19.5 b	2.9 b	9.1 c	2.6 c
		N1	18.2 b	16.4 ab	20.5 ab	3.3 ab	9.9 a	2.8 a
		N2	18.4 b	17.4 ab	21.7 ab	3.2 ab	9.4 bc	2.6 bc
		N3	20.2 a	18.8 a	23.4 a	3.4 ab	9.9 a	2.8 a
		N4	18.2 b	17.3 ab	21.6 ab	3.4 a	9.8 ab	2.7 ab
	DH605	CK	20.8 ab	19.0 ab	23.6 ab	3.0 b	8.9 b	2.5 b
		N1	22.1 a	20.5 a	25.5 a	3.3 a	9.8 a	2.8 a
		N2	21.2 ab	20.0 ab	24.9 ab	3.4 a	9.8 ab	2.7 ab
		N3	20.6 ab	18.1 b	22.5 b	3.2 a	9.9 a	2.8 a
		N4	20.2 b	18.8 ab	23.4 ab	3.3 a	9.7 ab	2.7 ab
2019	ZD958	CK	21.4 a	13.3 b	17.8 a	2.3 a	9.0 b	2.5 b
		N1	22.5 a	13.8 a	17.7 a	2.2 a	9.1 b	2.5 b
		N2	22.1 a	13.5 ab	16.8 a	2.3 a	10.2 a	2.9 a
		N3	21.4 a	13.1 b	16.3 a	2.6 a	10.9 a	3.1 a
		N4	22.1 a	13.6 ab	17.3 a	2.3 a	10.1 ab	2.8 ab
	DH605	CK	23.4 a	17.2 a	21.4 a	2.1 a	7.9 b	2.3 a
		N1	24.0 a	18.5 a	23.1 a	2.3 a	8.2 ab	2.3 a
		N2	24.3 a	17.4 a	21.6 a	2.2 a	8.3 ab	2.3 a
		N3	22.6 a	15.6 a	19.5 a	2.4 a	9.3 a	2.6 a
		N4	23.8 a	17.2 a	21.4 a	2.3 a	8.7 ab	2.4 a

T1, T2, and T3 represent the duration of the lag, middle, and late stages, respectively. In addition, V1, V2, and V3 delegate the grain-filling rate of the lag, middle, and late stages, respectively. One-way analysis of variance with Duncan’s new multiple range test was conducted to assess the statistical patterns. Different letters indicate a significant difference (p < 0.05).