TABLE 1.

The phenotypic variation and H² of GZnC and GFeC in 166 wheat cultivars across different environments^a.

Trait	Environment	Min (mg/kg)	Max (mg/kg)	Mean (mg/kg)	SD (mg/kg)	H 2
GZnC	20BJ	28.60	54.30	37.38	4.07	0.71
	202GY	31.80	58.90	43.68	5.92
	20SJZ	21.80	52.00	33.02	5.53
	BLUE	29.25	50.98	38.03	3.95
GFeC	20BJ	32.50	57.70	41.51	4.39	0.72
	20GY	35.20	60.95	45.96	4.80
	20SJZ	36.00	57.50	43.82	4.27
	20XJ	39.70	74.60	52.60	5.79
	BLUE	39.86	54.66	45.97	3.56

^aGZnC, grain zinc concentration; GFeC, grain iron concentration; 20BJ, 20GY, 20SJZ, 20XJ: Beijing, Gaoyi, Shijiazhuang, and Xinjiang locations, respectively, 2019–2020; BLUE: best linear unbiased estimation; SD, standard derivation; H², broad-sense heritability.