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

Table 4.

Effects of irrigation on Se concentrations in different plant parts and the translocation factor from the root to the grain of black-grained wheat in different Se soil in two seasons.

Seasons	Treatments	Grain (mg·kg^-1)				Spike-stalk + glume (mg·kg^-1)
		BGW-1		BGW-2		BGW-1		BGW-2
		Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀	Se₀	Se₂₁₆₀
2018-2019	W₀	0.061 ± 0.01^Ab	0.305 ± 0.01^Ca	0.059 ± 0.01^Ab	0.292 ± 0.01^Ca	0.111 ± 0.01^Ab	0.461 ± 0.02^Aa	0.102 ± 0.01^Ab	0.436 ± 0.02^Aa
	W₁	0.065 ± 0.02^Ab	0.370 ± 0.01^Ba	0.060 ± 0.01^Ab	0.359 ± 0.02^Ba	0.113 ± 0.01^Ab	0.488 ± 0.02^Aa	0.105 ± 0.01^Ab	0.459 ± 0.02^Aa
	W₂	0.064 ± 0.01^Ab	0.448 ± 0.03^Aa	0.061 ± 0.01^Ab	0.423 ± 0.01^Aa	0.114 ± 0.01^Ab	0.538 ± 0.04^Aa	0.101 ± 0.01^Ab	0.508 ± 0.03^Aa
2019-2020	W₀	0.067 ± 0.01^Ab	0.294 ± 0.01^Ca	0.057 ± 0.01^Ab	0.277 ± 0.01^Ca	0.102 ± 0.01^Ab	0.483 ± 0.02^Aa	0.101 ± 0.01^Ab	0.445 ± 0.03^Aa
	W₁	0.069 ± 0.01^Ab	0.360 ± 0.01^Ba	0.059 ± 0.01^Ab	0.338 ± 0.01^Ba	0.103 ± 0.01^Ab	0.504 ± 0.02^Aa	0.104 ± 0.01^Ab	0.469 ± 0.02^Aa
	W₂	0.070 ± 0.01^Ab	0.430 ± 0.01^Aa	0.060 ± 0.01^Ab	0.395 ± 0.02^Aa	0.101 ± 0.01^Ab	0.546 ± 0.01^Aa	0.103 ± 0.01^Ab	0.521 ± 0.01^Aa
		Leaves (mg·kg^-1)				Stem + leaf sheath (mg·kg^-1)
2018-2019	W₀	0.140 ± 0.01^Ab	0.558 ± 0.02^Ca	0.123 ± 0.01^Ab	0.508 ± 0.02^Ca	0.116 ± 0.01^Ab	0.425 ± 0.02^Ba	0.108 ± 0.01^Ab	0.316 ± 0.01^Ba
	W₁	0.143 ± 0.01^Ab	0.665 ± 0.01^Ba	0.125 ± 0.01^Ab	0.616 ± 0.02^Ba	0.118 ± 0.01^Ab	0.501 ± 0.02^Aa	0.109 ± 0.01^Ab	0.378 ± 0.02^Aa
	W₂	0.144 ± 0.01^Ab	0.741 ± 0.02^Aa	0.127 ± 0.01^Ab	0.688 ± 0.01^Aa	0.117 ± 0.01^Ab	0.546 ± 0.02^Aa	0.107 ± 0.01^Ab	0.432 ± 0.01^Aa
2019-2020	W₀	0.147 ± 0.01^Ab	0.556 ± 0.01^Ca	0.120 ± 0.01^Ab	0.519 ± 0.02^Ca	0.108 ± 0.01^Ab	0.391 ± 0.02^Ba	0.096 ± 0.01^Ab	0.308 ± 0.01^Ba
	W₁	0.150 ± 0.01^Ab	0.675 ± 0.01^Ba	0.125 ± 0.01^Ab	0.605 ± 0.02^Ba	0.110 ± 0.01^Ab	0.469 ± 0.02^Aa	0.097 ± 0.01^Ab	0.370 ± 0.02^Aa
	W₂	0.149 ± 0.01^Ab	0.765 ± 0.01^Aa	0.123 ± 0.01^Ab	0.722 ± 0.01^Aa	0.107 ± 0.01^Ab	0.521 ± 0.01^Aa	0.095 ± 0.01^Ab	0.416 ± 0.01^Aa
		Root (mg·kg^-1)				TF_root-grain
2018-2019	W₀	0.231 ± 0.01^Ab	1.157 ± 0.01^Ca	0.231 ± 0.01^Ab	1.235 ± 0.01^Ca	0.265 ± 0.02^Aa	0.264 ± 0.02^Aa	0.237 ± 0.04^Aa	0.236 ± 0.02^Aa
	W₁	0.223 ± 0.01^Ab	1.281 ± 0.02^Ba	0.233 ± 0.01^Ab	1.373 ± 0.02^Ba	0.293 ± 0.02^Aa	0.297 ± 0.01^Aa	0.258 ± 0.03^Aa	0.261 ± 0.01^Aa
	W₂	0.220 ± 0.02^Ab	1.450 ± 0.03^Aa	0.230 ± 0.01^Ab	1.560 ± 0.01^Aa	0.291 ± 0.01^Aa	0.309 ± 0.01^Aa	0.264 ± 0.02^Aa	0.271 ± 0.01^Aa
2019-2020	W₀	0.242 ± 0.01^Ab	1.118 ± 0.02^Ca	0.247 ± 0.01^Ab	1.281 ± 0.03^Ca	0.268 ± 0.02^Aa	0.263 ± 0.02^Aa	0.214 ± 0.03^Aa	0.216 ± 0.02^Aa
	W₁	0.233 ± 0.01^Ab	1.231 ± 0.01^Ba	0.252 ± 0.01^Ab	1.417 ± 0.01^Ba	0.298 ± 0.03^Aa	0.293 ± 0.01^Aa	0.235 ± 0.04^Aa	0.239 ± 0.01^Aa
	W₂	0.230 ± 0.02^Ab	1.400 ± 0.04^Aa	0.250 ± 0.01^Ab	1.607 ± 0.05^Aa	0.306 ± 0.04^Aa	0.307 ± 0.02^Aa	0.240 ± 0.02^Aa	0.246 ± 0.01^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 Heidal.