Table 4. Micro minerals of whole onion by growth stage (unit: mg/100 g FW)

Growth stage		Fe	Zn	Cu	Mn
Whole onion	16 weeks	0.57±0.00^c1)	0.25±0.00^c	0.05±0.00^a	0.20±0.00^f
	17 weeks	0.44±0.00^d	0.20±0.00^d	0.02±0.00^c	0.18±0.00^g
	19 weeks	0.37±0.01^f	0.17±0.00^f	0.01±0.00^d	0.25±0.01^e
	21 weeks	0.40±0.00^e	0.28±0.00^b	0.01±0.00^d	0.34±0.00^d
	23 weeks	0.77±0.01^a	0.15±0.00^g	0.005±0.00^e	0.39±0.01^a
	25 weeks	0.64±0.00^b	0.19±0.00^e	0.01±0.00^e	0.38±0.00^b
Onion bulb		0.27±0.00^h	0.15±0.00^g	0.01±0.00^e	0.18±0.00^g
Green onion		0.35±0.00^g	0.34±0.01^a	0.04±0.00^b	0.37±0.01^c

Values are expressed as mean±SD (n=3). Means with different superscripts within each column are significantly different (p<0.05) by Duncan’s multiple range test.