. 2023 Jun 9;11:e15262. doi: 10.7717/peerj.15262

Table 7. Mean nutrient contents (mean ± standard error) of potato accessions in year × location × color interactions.

Year × Loc Color	K	P	Ca	Mg	Fe	Zn	Cu	Mn
	g kg⁻¹				mg kg⁻¹
1xNxLY	27.71 ± 0.88^d	2.80 ± 0.07^g	0.33 ± 0.01^d–g	0.98 ± 0.02^fg	19.30 ± 0.56^f–i	31.87 ± 0.85^bc	7.79 ± 0.15^d–h	5.82 ± 0.11^k
1xNxDY	25.99 ± 0.91^de	3.07 ± 0.12^d–g	0.36 ± 0.02^b–e	1.01 ± 0.02^fg	19.11 ± 0.71^ghi	27.70 ± 0.85^de	8.03 ± 0.21^def	6.16 ± 0.18^ijk
1xNxC	34.99 ± 1.64^b	2.95 ± 0.15^efg	0.30 ± 0.02^fg	1.07 ± 0.04f	18.39 ± 0.75^ghi	34.08 ± 1.54^ab	7.75 ± 0.31^d–h	6.06 ± 0.20^jk
1xNxW	28.56 ± 1.90^d	2.90 ± 0.16^fg	0.31 ± 0.01^efg	1.05 ± 0.05^f	17.39 ± 0.66^hi	29.94 ± 1.54^cd	7.92 ± 0.29^d–g	6.33 ± 0.20^h–k
1xKxLY	34.54 ± 0.75^b	3.30 ± 0.10^cd	0.34 ± 0.01^c–f	1.17 ± 0.02^e	16.21 ± 0.56ⁱ	23.79 ± 0.75^f–i	7.80 ± 0.18^d–h	6.49 ± 0.13^g–j
1xKxDY	34.77 ± 0.93^b	3.31 ± 0.14^cd	0.32 ± 0.01^d–g	1.18 ± 0.02^e	16.60 ± 0.77ⁱ	23.79 ± 0.86^f–i	7.71 ± 024^d–h	6.46 ± 0.16^g–k
1xKxC	38.06 ± 1.13^a	3.67 ± 0.08^ab	0.30 ± 0.02^fg	1.28 ± 0.02^b–e	16.35 ± 0.85ⁱ	24.05 ± 1.43^fgh	9.02 ± 0.33^abc	6.95 ± 0.17^e–h
1xKxW	31.55 ± 1.30^c	3.04 ± 0.09^d–g	0.32 ± 0.02^efg	1.22 ± 0.05^cde	18.10 ± 1.22^ghi	21.38 ± 1.10^h–k	7.00 ± 0.19^gh	6.49 ± 0.21^g–j
1xAxLY	22.54 ± 0.49^fg	3.22 ± 0.04^c–f	0.30 ± 0.01^fg	1.34 ± 0.02^ab	20.57 ± 0.54^fgh	23.48 ± 0.56^f–i	7.25 ± 0.16^fgh	7.05 ± 0.13^d–g
1xAxDY	22.13 ± 0.46^fg	3.34 ± 0.05^cd	0.31 ± 0.01^efg	1.37 ± 0.03^ab	19.24 ± 0.58^f–i	22.72 ± 0.57^g–j	7.02 ± 0.17^gh	6.67 ± 0.13^f–j
1xAxC	23.11 ± 0.68^fg	3.28 ± 0.08^cde	0.29 ± 0.01^g	1.30 ± 0.05^bc	22.80 ± 1.12^def	26.69 ± 0.87^def	6.96 ± 0.28^h	6.89 ± 0.27^e–h
1xAxW	23.65 ± 0.85^ef	3.36 ± 0.11^cd	0.32 ± 0.01^d–g	1.42 ± 0.05^a	18.72 ± 1.12^ghi	24.42 ± 0.87^e–h	7.03 ± 0.32^gh	6.98 ± 0.28^e–h
2xNxLY	14.03 ± 0.58^j	2.90 ± f.05^g	0.34 ± 0.01^c–f	1.01 ± 0.02^fg	25.22 ± 0.97^d	19.75 ± 0.83^jkl	7.79 ± 0.23^d–h	7.21 ± 0.15^c–f
2xNxDY	12.44 ± 0.38^j	2.96 ± 0.07^efg	0.34 ± 0.02^c–f	0.92 ± 0.04^g	24.54 ± 1.11^de	17.76 ± 0.82l	7.65 ± 0.34^e–h	6.75 ± 0.19^f–i
2xNxC	13.86 ± 0.67^j	2.95 ± 0.08^efg	0.30 ± 0.01^fg	0.97 ± 0.04^fg	21.66 ± 1.35^efg	20.56 ± 1.56^i–l	7.70 ± 0.44^d–h	7.00 ± 0.31^d–h
2xNxW	14.14 ± 0.51^j	2.83 ± 0.05^g	0.32 ± 0.01^d–g	0.92 ± 0.04^g	21.18 ± 1.35^efg	18.23 ± 1.15^kl	7.24 ± 0.49^f–h	6.47 ± 0.23^g–k
2xKxLY	13.76 ± 0.25^j	3.08 ± 0.04^d–g	0.33 ± 0.01^d–g	1.21 ± 0.02^cde	38.12 ± 0.87^b	25.61 ± 0.46^efg	8.61 ± 0.16^a–d	7.76 ± 0.14^abc
2xKxDY	13.25 ± 0.42^j	3.06 ± 0.07^d–g	0.32 ± 0.01^d–g	1.19 ± 0.02^de	41.96 ± 1.37^a	26.95 ± 0.85^def	8.50 ± 0.15^b–e	7.50 ± 0.14^b–e
2xKxC	14.86 ± 0.59^ij	3.27 ± 0.10^cde	0.32 ± 0.02^d–g	1.22 ± 0.04^cde	41.60 ± 1.58^a	26.53 ± 0.98^ef	9.29 ± 0.26^ab	8.05 ± 0.24^ab
2xKxW	13.68 ± 0.59^j	3.03 ± 0.15^d–g	0.30 ± 0.02^fg	1.19 ± 0.05^de	37.70 ± 1.02^b	22.30 ± 0.98^g–j	8.36 ± 0.35^cde	7.67 ± 0.36^a–d
2xAxLY	17.81 ± 0.40^h	3.41 ± 0.06^bc	0.38 ± 0.01^bc	1.29 ± 0.02^bcd	36.03 ± 0.94^b	31.59 ± 0.71^bc	8.56 ± 0.16^b–e	7.46 ± 0.14^b–e
2xAxDY	20.76 ± 0.70^g	3.94 ± 0.13^a	0.42 ± 0.01^a	1.44 ± 0.04^a	42.63 ± 1.58^a	36.18 ± 1.50^a	9.45 ± 0.20^a	8.04 ± 0.22^ab
2xAxC	18.01 ± 0.57^h	3.31 ± 0.08^cd	0.36 ± 0.02^bcd	1.36 ± 0.04^ab	37.93 ± 1.65^b	31.66 ± 0.85^bc	8.97 ± 0.30^abc	8.31 ± 0.21^a
2xAxW	17.33 ± 0.83^hi	3.27 ± 0.15^cde	0.40 ± 0.02^ab	1.21 ± 0.06^cde	32.43 ± 1.37^c	29.97 ± 1.35^cd	7.82 ± 0.56^d–h	7.08 ± 0.46^d–g
P value	0.001	0.017	0.350	0.004	0.013	0.173	0.031	0.001
LSD(0.05)	1.572	0.185	0.026	0.06	2.093	1.957	0.502	0.381

Notes.

Means followed by different letters are significantly different by each other P < 0.05.

Year: 1, 2013 and 2, 2014.

Locations: N, Niksar; K, Kazova; A, Artova, Colors: LY, Light yellow; DY, Dark yellow; C, Cream; W, White.