. 2025 Mar 28;16:1521113. doi: 10.3389/fpls.2025.1521113

Table 3.

Effect of irrigation on Fe, Zn, Mn, and Cu concentrations of black-grained wheat in different Se soil in two seasons.

Seasons	Treatments	Fe (mg·kg^-1)				Zn (mg·kg^-1)
		BGW-1		BGW-2		BGW-1		BGW-2
		Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀
2018-2019	W₀	31.13 ± 1.15^Ab	37.80 ± 1.06^Ca	35.25 ± 1.21^Ab	37.40 ± 0.86^Ca	33.96 ± 1.25^Ab	37.25 ± 1.06^Ba	31.15 ± 1.06^Ab	34.23 ± 0.80^Ba
	W₁	32.21 ± 1.20^Ab	41.73 ± 0.96^Ba	36.51 ± 1.17^Ab	41.06 ± 0.80^Ba	34.60 ± 1.14^Ab	40.71 ± 1.14^ABa	32.31 ± 1.31^Ab	35.75 ± 1.13^ABa
	W₂	33.11 ± 0.96^Ab	47.21 ± 1.15^Aa	37.09 ± 1.00^Ab	44.54 ± 1.07^Aa	35.90 ± 1.17^Ab	43.39 ± 1.39^Aa	33.19 ± 1.28^Ab	38.11 ± 1.06^Aa
2019-2020	W₀	32.68 ± 1.23^Ab	38.50 ± 0.72^Ca	36.00 ± 1.25^Ab	38.44 ± 0.92^Ca	34.76 ± 1.20^Ab	37.54 ± 1.05^Ba	32.09 ± 1.25^Ab	35.66 ± 0.96^Ba
	W₁	33.51 ± 1.29^Ab	41.87 ± 0.81^Ba	37.22 ± 1.20^Ab	42.37 ± 0.85^Ba	35.30 ± 1.24^Ab	40.14 ± 0.99^ABa	33.42 ± 1.07^Ab	37.97 ± 1.02^ABa
	W₂	34.65 ± 1.14^Ab	48.44 ± 0.91^Aa	38.03 ± 1.07^Ab	45.65 ± 0.72^Aa	36.68 ± 0.89^Ab	43.02 ± 1.33^Aa	34.04 ± 1.38^Ab	41.09 ± 1.25^Aa
		Mn (mg·kg^-1)				Cu (mg·kg^-1)
2018-2019	W₀	27.80 ± 1.29^Ab	31.07 ± 0.97^Ba	27.09 ± 1.31^Ab	30.19 ± 0.74^Ba	8.53 ± 0.68^Aa	8.33 ± 0.57^Aa	8.49 ± 0.77^Aa	8.20 ± 0.56^Aa
	W₁	28.44 ± 1.27^Ab	33.61 ± 1.07^ABa	28.34 ± 1.20^Ab	31.76 ± 0.76^ABa	8.12 ± 0.84^Aa	7.70 ± 0.61^Aa	8.14 ± 0.75^Aa	7.64 ± 0.54^Aa
	W₂	29.76 ± 0.77^Ab	36.44 ± 0.87^Aa	29.17 ± 0.80^Ab	33.35 ± 0.83^Aa	7.38 ± 0.59^Aa	6.93 ± 0.51^Aa	7.43 ± 0.62^Aa	6.92 ± 0.43^Aa
2019-2020	W₀	28.80 ± 1.26^Ab	31.91 ± 0.95^Ba	28.62 ± 1.07^Ab	31.67 ± 0.81^Ba	7.79 ± 0.59^Aa	7.19 ± 0.89^Aa	7.69 ± 0.65^Aa	7.14 ± 0.83^Aa
	W₁	29.94 ± 1.17^Ab	34.66 ± 1.02^ABa	29.75 ± 1.16^Ab	33.79 ± 1.10^ABa	7.45 ± 0.65^Aa	6.63 ± 0.63^Aa	7.43 ± 0.73^Aa	6.73 ± 0.67^Aa
	W₂	30.86 ± 1.27^Ab	37.62 ± 0.61^Aa	30.53 ± 0.88^Ab	35.32 ± 1.00^Aa	6.72 ± 0.61^Aa	5.91 ± 0.50^Aa	6.77 ± 0.62^Aa	5.95 ± 0.48^Aa

Values with different capital letter in the same column are significantly different (α = 0.01). Values with different small letters in the same row are significantly different (α = 0.05). W₀, no irrigation throughout the entire growing period; W₁, irrigated at the wintering stage (Feekes 3.0); W₂, irrigated at both the wintering and greening stage (Feekes 4.0); Se₀, no Se fertilizer; Se₂₁₆₀, 2160 g·ha^-1 pure Se; BGW-1, black-grained wheat Xihei 88; BGW-2, black-grained wheat Heidali.