Table 1. Productivity of fresh potatoes including Atlantic, Chubaek, and Superior varieties according to growing period during spring cultivation in 2021

Variety	Growing period(day)	Total yield(kg/10a)	Marketable yield(kg/10a)	Rate of marketability (%)	Tubers weight(g/plant)	Specific gravity	Starch (%)
Atlantic	80	3,637^c1)	2,988^c	82^b	742±63^c	1.080^a	13.94^a
	90	4,086^b	3,540^b	87^ab	834±96^b	1.080^a	13.94^a
	100	4,429^a	3,992^a	90^a	904±47^a	1.078^a	13.51^a
Chubaek	80	3,621^b	3,169^b	86^b	759±56^b	1.060^a	9.65^a
	90	4,044^a	3,693^a	91^a	847±65^a	1.061^a	9.86^a
	100	4,197^a	3,759^a	90^ab	879±66^a	1.060^a	9.65^a
Superior	80	3,667^c	3,368^b	92^a	756±67^c	1.071^ab	12.00^ab
	90	4,049^b	3,692^ab	92^a	835±72^b	1.068^b	11.36^b
	100	4,322^a	3,947^a	91^a	891±71^a	1.072^a	12.22^a

All values are mean (n=3). Means with different superscript letters (^a-c) in the same column are significantly different (p<0.05) by Duncan’s multiple range test.