Stability of anthocyanin, carotenoid and root yield of 10 sweet potato genotypes

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Supplementary Figure S1.

Supplementary Figure S2.

Supplementary Figure S3.

Supplementary Figure S4.

Supplementary Figure S5.

Supplementary Figure S6.

Supplementary Figure S7.

Supplementary Figure S8.

Supplementary Figure S9.

Supplementary Figure S10.

Means for anthocyanin content (mg · 100 g−1 FW) and carotenoid content (mg · 100 g−1 FW) of 10 potato genotypes evaluated at three locations_

Genotypes	Anthocyanin (mg · 100 g−1 FW)				Carotenoid (mg · 100 g−1 FW)
	L1	L2	L3	Mean	L1	L2	L3	Mean
SR 2022/01	5.91 c	4.41 cd	7.03 a	5.78 C	12.39 ab	11.27 ab	13.05 a–c	12.24 A–C
KS 2022/02	2.00 e	10.99 b	1.88 cd	4.96 CD	11.61 ab	11.63 ab	9.95 d	11.06 BC
SR 2022/03	1.50 e	12.99 b	6.90 a	7.13 B	11.14 ab	10.72 ab	9.87 d	10.58 C
SR 2022/04	1.55 e	2.77 d	1.04 d	1.78 G	10.29 b	12.07 ab	9.87 d	10.75 C
SR 2022/05	0.98 e	6.88 c	6.79 a	4.77 CD	12.19 ab	14.02 a	9.98 d	12.06 A–C
SR 2022/06	3.83 d	4.17 cd	3.19 bc	3.74 EF	12.57 ab	13.34 a	11.98 b–d	12.63 AB
KS 2022/07	6.76 bc	22.71 a	3.54 b	11.00 A	10.85 b	13.09 a	13.97 ab	12.63 AB
KS 2022/08	1.93 e	3.50 d	2.92 bc	2.79 FG	13.22 ab	8.69 b	13.04 a–c	11.65 A–C
SR 2022/09	7.82 b	2.83 d	2.83 d	4.47 DE	14.22 a	10.93 ab	11.22 cd	12.12 A–C
SR 2022/10	10.32 a	10.98 b	2.25 b–d	7.85 B	11.63 ab	12.43 ab	14.63 a	12.90 A
Means	4.26 B	8.22 A	3.83 B		12.01	11.82	11.75
F-test	**	**	**		**	**	**
C.V. (%)	17.18	21.65	24.07		15.74	16.89	10.60

Mean squares for number for (storage root · plant−1), storage root dry weight (t · ha−1), harvest index, anthocyanin content (mg · 100 g−1 FW) and carotenoid content (mg · 100 g−1 FW) of 10 sweet potato genotypes evaluated across three locations_

Source of variance	df	Number of storage roots per plant (storage root · plant−1)	Storage root dry weight (t · ha−1)	Harvest index	Anthocyanin (mg · 100 g−1 FW)	Carotenoid (mg · 100 g−1 FW)
Location (L)	2	3.14**(41.81)	5.74** (33.88)	0.348** (78.55)	175.68** (59.77)	0.54 ns(2.52)
Error (a)	6	0.03 (0.40)	0.01 (0.06)	0.001 (0.23)	0.84 (0.28)	4.16 (19.41)
Genotype (G)	9	1.88**(25.03)	7.39** (43.63)	0.052** (11.74)	64.59** (21.97)	6.09*(28.40)
L × G	18	2.40**(31.96)	3.77** (22.26)	0.041** (9.26)	51.33** (17.46)	7.61**(35.49)
Error (b)	54	0.06 (0.80)	0.03 (0.17)	0.001 (0.22)	1.51 (0.52)	3.04 (14.18)
Total	89
C.V.% (a)		7.76	5.24	2.25	16.92	17.20
C.V.% (b)		11.84	9.77	7.33	22.66	14.69

Ten genotypes of sweet potato used in the experiment, their local name and characteristics_

Accession number	Local name	Characteristics
SR 2022/01	Beniharuka	Purple white skin, light yellow central parenchyma
KS 2022/02	Pakkadmadpor	Red skin, soft white central parenchyma
SR 2022/03	Moangpurple	Dark purple skin, light purple central parenchyma
SR 2022/04	Moangmaitaiwan	Dark purple skin, dark purple central parenchyma
SR 2022/05	Moangokinava	Purple skin, dark purple central parenchyma
SR 2022/06	Moangharumurazaki	Purple skin, purple central parenchyma
KS 2022/07	Somporsidang	Red skin, orange central parenchyma
KS 2022/08	Sweetthijong	White skin, soft white central parenchyma
SR 2022/09	Somokinava	Red skin, dark orange central parenchyma
SR 2022/10	Annoimo	Red skin, dark yellow central parenchyma

Physical and chemical properties of the soil samples of three locations_

Soil properties	L1-RMUTI	L2-Chomphra	L3-Sanom
Physical properties
Sand (%)	77.79	62.03	79.47
Silt (%)	18.19	29.52	13.13
Clay (%)	4.02	8.45	6.80
Texture class	Loamy sand	Sandy loam	Loamy sand
Chemical properties
pH	5.49	5.22	5.30
Electrical conductivity (dS · m−1)	0.041	0.028	0.055
Cation-exchange capacity (cmol · kg−1)	3.80	4.40	4.80
Organic matter (%)	0.50	1.09	0.81
Total N (%)	0.027	0.051	0.040
Available P (mg · kg−1)	93.75	23.50	8.75
Exchangeable K (mg · kg−1)	44.37	67.65	11.42
Exchangeable Ca (mg · kg−1)	113.93	189.30	36.31
Exchangeable Mg (mg · kg−1)	39.19	52.93	23.27

Means for number of storage roots per plant, storage root dry weight (t · ha ‘) and harvest index of 10 potato genotypes evaluated at three locations_

Genotypes	Number of storage roots per plant (storage root · plant−1)				Storage root dry weight (t · ha−1)				Harvest index
	L1	L2	L3	Means	L1	L2	L3	Means	L1	L2	L3	Means
SR 2022/01	2.0 cd	1.3 cd	3.3 a	2.2 B	0.93 fg	0.24 g	1.66 e	0.94 E	0.52 be	0.19 d	0.72 c	0.57 D
KS 2022/02	2.4 c	1.5 cd	1.7 e	1.9 CD	0.97 fg	3.66 b	0.60 i	1.74 D	0.37 o	0.84 a	0.76 b	0.65 BC
SR 2022/03	1.6 de	4.4 a	2.3 cd	2.7 A	1.46 c-e	6.63 a	2.33 c	3.47 A	0.5 e	0.85 a	0.7 cd	0.68 AB
SR 2022/04	2.1 cd	1.4 cd	2.7 b	2.1 BC	1.68 b-d	1.63 d	1.42 f	1.57 D	0.68 a	0.62 c	0.61 f	0.63 C
SR 2022/05	2.2 c	1.5 cd	1.3 f	1.7 DE	1.82 be	2.69 c	2.28 c	2.26 C	0.44d e	0.72 b	0.77 b	0.64 C
SR 2022/06	2.5 c	1.3 cd	2.5 be	2.1 BC	1.30 d-f	1.01 e	0.84 h	1.05 F	0.44 de	0.37 e	0.65 e	0.48 E
KS 2022/07	4.3 a	2.1 b	1.5 ef	2.6 A	3.21 a	2.95 c	2.91 a	3.02 B	0.59 h-j	0.75 b	0.84 a	0.72 A
KS 2022/08	2.4 c	0.9 e	1.5 ef	1.6 E	2.01 b	0.77 ef	2.02 d	1.60 D	0.47c-e	0.47 d	0.79 b	0.57 D
SR 2022/09	3.6 b	2.3 b	2.1 d	2.7 A	1.21 ef	3.52 b	2.48 b	2.40 C	0.55b c	0.86 a	0.77 b	0.72 A
SR 2022/10	1.2 e	1.2 d	2.1 d	1.5 E	0.54 g	0.52 f	1.08 g	0.71 F	0.57 ab	0.51 d	0.67 de	0.58 D
Means	2.42 A	1.77 C	2.08 B		1.52 C	2.37A	1.77 B		0.51 C	0.65 B	0.73 A
F-test	**	**	**		**	**	**		**	**	**
C.V. (%)	13.35	10.93	9.84		17.43	24.4	4.09		12.68	6.67	2.46

Stability analyses of storage root dry weight (t · ha−1), anthocyanin content (mg · 100 g−1 FW) and carotenoid content (mg · 100 g−1 FW) of 10 sweet potato genotypes evaluated across three locations_

Genotypes	Storage root dry weight (t · ha−1)	b	Sdi2S_{di}^2	Anthocyanin (mg · 100 g−1 FW)	b	Sdi2S_{di}^2	Carotenoid (mg · 100 g−1 FW)	b	Sdi2S_{di}^2
SR 2022/01	0.94 E	–1.10ns	0.533**	5.78 C	–0.51*	–0.075ns	12.24 A–C	–0.60ns	0.552ns
KS 2022/02	1.74 D	3.51ns	0.837**	4.96 CD	2.15*	–0.159ns	11.06 BC	4.94ns	–0.064ns
SR 2022/03	3.47 A	6.28*	0.257**	7.13 B	1.99ns	19.258**	10.58 C	4.34ns	–0.876ns
SR 2022/04	1.57 D	0.02ns	0.027ns	1.78 G	0.35*	–0.419ns	10.75 C	–0.87ns	1.672ns
SR 2022/05	2.26 C	0.96ns	0.016ns	4.77 CD	0.61ns	18.066**	12.06 A–C	4.39ns	6.430**
SR 2022/06	1.05 F	–0.22ns	0.076**	3.74 EF	0.17*	–0.324ns	12.63 AB	0.84ns	–0.136ns
KS 2022/07	3.02 B	–0.24ns	0.022ns	11.00 A	4.23*	0.497ns	12.63 AB	–11.99**	–1.044ns
KS 2022/08	1.60 D	–1.56ns	0.079**	2.79 FG	0.24ns	0.114ns	11.65 A–C	5.95ns	10.867**
SR 2022/09	2.40 C	2.54ns	0.211**	4.47 DE	–0.49ns	13.522**	12.12 A–C	12.91ns	–0.386ns
SR 2022/10	0.71 F	–0.19ns	0.179**	7.85 B	1.26ns	28.087**	12.90 A	–9.90ns	0.251ns