Table 2. Free sugar of whole onion by growth stage (unit: g/100 g FW)

Growth stage		Glucose	Fructose	Sucrose	Total sugar²⁾
Whole onion	16 weeks	3.75±0.01^g1)	5.04±0.01^h	1.13±0.00^f	9.92±0.00^h
	17 weeks	5.32±0.00^f	6.23±0.01^d	1.37±0.00^d	12.9±0.00^g
	19 weeks	7.21±0.00^d	6.58±0.00^b	0.87±0.01^h	14.7±0.00^e
	21 weeks	10.3±0.00^b	6.31±0.01^c	1.20±0.01^e	17.8±0.00^b
	23 weeks	9.07±0.01^c	5.70±0.01^g	1.06±0.00^g	15.8±0.00^d
	25 weeks	10.3±0.01^b	5.83±0.00^f	1.59±0.00^b	17.7±0.00^c
Onion bulb		11.6±0.01^a	9.33±0.00^a	2.04±0.00^a	23.0±0.00^a
Green onion		6.10±0.01^e	5.98±0.01^e	1.45±0.00^c	13.5±0.00^f

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.
Maltose, galactose not detected.