TABLE 1.

Amino acid profile.

Year	Cultivar	Aspartic acid	Glutamic acid	Serine	Histidine	Glycine	Threonine	Arginine	Alanine	Proline	Tyrosine	Valine	Methionine	Cysteine	Isoleucine	Tryptophan	Leucine	Phenyla lanine	Lysine
2017	Titicaca	11.84±0.93	21.37±2.1	6.5±0.73	4.44±0.31	7.93±0.57	5.25±0.44	11.83±1.1	6.34±0.48	7.29±1.31	4.22±0.47	6.15±0.46	1.71±0.89	1.78±0.16	5.65±0.49	0.84±0	9.16±0.68	5.8±0.44	7.85±0.59
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	abc	abc	abc	ab	abcd	abcd	ab	abcde	abcde	abc
	Vikinga	13.02±0.66	23.64±1.2	6.99±0.37	4.91±0.28	8.76±0.5	5.67±0.3	13.68±0.67	7.09±0.38	7.12±0.8	4.84±0.15	6.92±0.41	1.99±0.89	1.95±0.15	6.36±0.44	0.82±0	10.06±0.43	6.39±0.29	8.76±0.42
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	abc	ab	abc	ab	abcd	abcd	ab	abcde	abcde	abc
	Regalona	12.2±0.59	21.39±0.78	6.53±0.26	4.36±0.22	8.06±0.8	5.28±0.24	12.1±0.5	6.49±0.24	7.17±1.18	4.39±0.22	6.44±0.32	1.93±0.56	1.61±0.14	5.91±0.21	0.77±0	9.38±0.34	5.89±0.28	7.96±0.41
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	abc	abc	abc	ab	abcd	abc	ab	abcde	abcde	abc
	Puno	11.25±0.25	20.35±0.51	6.23±0.13	4.2±0.11	7.54±0.21	4.94±0.1	11.56±0.32	5.92±0.11	6.23±1.1	4.13±0.1	5.6±0.08	2.02±0.54	1.96±0.09	5.14±0.06	0.75±0	8.69±0.2	5.45±0.1	7.35±0.19
		d	abcd	b	abcd	cd	f	abcd	de	abc	bc	c	ab	ab	cd	ab	bde	bde	c
	Q3	12.23±0.21	22.29±0.5	7.12±0.19	4.29±0.14	8.12±0.07	5.5±0.11	11.93±0.26	6.66±0.15	4.01±1.45	4.23±0.17	5.93±0.08	1.43±0.33	2.14±0.04	5.4±0.07	0.79±0	9.34±0.2	5.82±0.09	8.12±0.12
		bcd	abcd	ab	cd	cd	ade	abcd	abc	abc	bc	bc	ab	a	abcd	ab	abcde	abcde	bc
	Q5	10.63±0.49	18.89±0.97	6.22±0.18	3.73±0.19	7.33±0.34	4.97±0.21	10.5±0.74	5.76±0.27	3.19±1.79	3.83±0.17	5.09±0.2	1.27±0.27	1.92±0.1	4.56±0.18	0.91±0	9.16±0.68	5.24±0.26	7.58±0.39
		d	ad	b	ab	ad	cdef	cd	aef	bc	c	c	ab	abc	d	a	abcde	cde	abc
2018	Titicaca	14.7±0.58	25.87±1.12	7.57±0.45	5.15±0.26	9.81±0.47	6.17±0.18	15.18±0.78	7.61±0.33	7.68±1.75	5.11±0.15	7.7±0.57	1.84±1.05	1.32±0.19	7.07±0.49	0.72±0	11.1±0.46	7.05±0.32	9.68±0.42
		abc	bc	ab	ab	bc	a	ab	bcd	ab	a	abc	ab	abcde	abcd	ab	ab	ab	ab
	Vikinga	14.37±0.49	25.8±1.95	7.87±0.48	5.23±0.25	9.71±0.57	6.06±0.1	15.31±1.82	7.34±0.48	6.92±1.48	5.15±0.65	7.22±0.49	1.56±0.13	1.71±0.11	6.91±0.35	0.78±0.06	10.74±0.82	6.72±0.49	9.65±0.5
		ab	abcd	ab	abcd	abcd	bc	abcd	abcdef	abc	abc	abc	a	abcd	ac	ab	abcde	abcde	abc
	Regalona	12.68±0.74	23.22±1.6	7.01±0.28	4.54±0.34	8.97±0.56	5.63±0.29	13.49±1.06	6.7±0.44	8.28±0.17	4.58±0.19	6.84±0.6	1.51±0.64	1.49±0.09	6.25±0.56	0.61±0	9.88±0.58	6.23±0.41	8.77±0.56
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	a	abc	abc	ab	bcde	abcd	ab	abcde	abcde	abc
	Puno	12±0.29	21.81±0.45	6.56±0.33	4.5±0.11	8.27±0.14	5.26±0.17	13.08±0.2	6.27±0.13	6.29±1.34	4.54±0.16	6.33±0.11	2.32±0.92	1.61±0.18	5.78±0.08	0.58±0	9.32±0.23	5.93±0.13	8.21±0.18
		bcd	abcd	ab	ac	cd	cdef	ac	cdef	abc	abc	ab	ab	abcde	ab	ab	abcde	abcde	abc
	Q3	11.99±0.18	20.73±0.3	6.98±0.19	4.03±0.05	8.14±0.14	5.47±0.1	11.72±0.18	6.49±0.09	6.22±1.65	4.57±0.12	6.27±0.07	2.42±0.45	2.06±0.19	5.7±0.07	0.59±0	9.46±0.19	5.96±0.1	8.19±0.12
		bcd	cd	ab	bd	cd	ade	bd	cf	abc	abc	ab	ab	abcd	ab	ab	ad	ad	bc
	Q5	13.57±0.2	22.87±0.14	7.58±0.05	4.59±0.1	9.03±0.11	5.86±0.05	13.11±0.33	6.94±0.08	7.17±2.1	4.68±0.19	6.43±0.09	1.47±0.74	1.45±0.27	5.82±0.1	0.55±0	10.03±0.11	6.36±0.12	8.98±0.12
		a	ab	a	abcd	ab	acd	abc	ab	abc	abc	a	ab	abcde	ab	b	ac	ac	a
2019	Titicaca	10.77±0.4	20.43±1.7	6.38±0.51	3.55±0.94	7.48±0.69	5.01±0.5	10.5±0.3	5.7±0.67	3.17±2.33	3.67±0.53	5.32±1.37	0.72±0.51	0.85±0.15	4.89±0.8	0.72±0.18	8.03±1.23	5.42±0.56	7.51±0.9
		d	abcd	ab	abcd	abcd	abcdef	d	aef	bc	abc	abc	ab	e	abcd	ab	abcde	abcde	abc
	Vikinga	12.07±1.96	19.59±4.69	6.96±1.02	4.16±1.11	7.91±1.31	4.41±1.17	10.86±2.32	6.16±0.9	3.13±2.55	3.41±0.81	5.74±1.04	1.71±1.14	1.52±0.43	3.91±1.83	0.67±0.06	8.94±1.79	5.05±1.01	7.82±1.56
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	bc	abc	abc	ab	abcde	abcd	ab	abcde	abcde	abc
	Regalona	11.09±1.44	19.57±4.03	6.47±0.95	3.51±1.14	7.36±0.86	4.62±1	11.11±1.69	5.72±0.85	2.53±1.94	3.9±0.46	5.43±0.91	0.99±0.92	1.34±0.12	4.6±0.9	0.68±0.3	7.86±1.95	5.3±0.87	6.79±1.76
		abcd	abcd	ab	abcd	abcd	abcdef	abcd	abcdef	c	abc	abc	ab	cde	abcd	ab	abcde	abcde	abc
	Puno	11.03±0.43	20.23±1.41	6.06±0.33	3.58±0.46	7.02±0.26	4.65±0.36	11.15±0.73	5.38±0.28	3.11±1.55	3.46±0.36	4.97±0.54	0.83±0.6	1.35±0.29	4.76±0.15	0.8±0.32	8.07±0.02	5.26±0.14	6.87±0.81
		d	abcd	ab	abcd	d	abcdef	cd	aef	bc	abc	abc	ab	abcde	d	ab	be	e	abc
	Q3	11.93±0.31	21.27±0.9	6.58±0.21	3.75±0.39	7.36±0.33	5.04±0.12	11.36±0.55	6.05±0.1	3.08±1.89	3.79±0.45	5.73±0.25	0.61±0.3	1.23±0.05	5.04±0.22	0.54±0.25	8.77±0.29	5.42±0.2	7.7±0.29
		cd	abcd	ab	abcd	ad	ef	cd	cdef	bc	abc	abc	ab	de	bd	ab	cde	cde	abc
	Q5	11.21±0.2	19.62±0.62	6.42±0.51	3.69±0.55	7.61±0.48	4.83±0.16	10.91±0.39	6.01±0.16	3.45±1.52	3.97±0.13	5.73±0.14	0.69±0.16	1.38±0.2	4.94±0.43	0.88±0.41	8.4±0.17	5.37±0.15	7.84±0.51
		d	ad	ab	abcd	abcd	ef	d	cdef	abc	c	bc	b	abcde	abcd	ab	e	de	abc

Mean ± SD amino acid contents of samples are expressed as mg/g of seed weight. Statistical analysis following a One-way ANOVA test with a post-hoc Tukey test (proline), a Krustal-Wallis test by ranks (tryptophan), or a Welch’s ANOVA test with a Games-Howell post-hoc test, was performed. Different letters under each amino acid content show statistically significant differences between samples.