Table 3. Macro minerals of whole onion by growth stage (unit: mg/100 g FW)

Growth stage		Ca	P	K	Na	Mg
Whole onion	16 weeks	65.5±0.76^a1)	28.54±0.17^b	253±3.60^a	8.67±0.10^a	17.4±0.01^a
	17 weeks	60.2±0.65^b	25.71±0.12^c	235±3.03^c	7.73±0.06^b	16.6±0.07^b
	19 weeks	56.4±0.09^c	21.58±0.18^d	210±1.19^d	5.76±0.04^d	15.1±0.10^c
	21 weeks	60.7±0.07^b	16.47±0.03^g	187±0.82^e	5.34±0.05^e	14.4±0.02^d
	23 weeks	45.8±0.46^e	15.94±0.14^h	155±0.22^g	4.79±0.05^f	12.6±0.08^g
	25 weeks	46.9±0.29^d	16.98±0.20^f	167±1.35^f	6.23±0.02^c	13.2±0.07^f
Onion bulb		28.9±0.36^f	18.60±0.22^e	147±1.64^h	2.37±0.00^h	10.0±0.12^h
Green onion		19.9±0.01^g	34.14±0.16^a	247±0.95^b	2.97±0.02^g	13.5±0.01^e

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.