TABLE 3.
Seed color-related parameters.
| Year | Cultivar | L* | a* | b* | h° | C* | Δ E |
| 2017 | Titicaca | 56.3±1.5 | 5.5±0.4 | 24.2±0.5 | 77.3±1 | 24.8±0.5 | 1.2±1.4 |
| abcde | defgh | ac | abcd | b | abc | ||
| Vikinga | 59.8±1.1 | 4.9±0.2 | 20.6±0.8 | 76.7±0.6 | 21.2±0.8 | 6.1±0.4 | |
| abc | gh | abcd | abc | cdef | bc | ||
| Regalona | 61.4±1.7 | 4.3±0.3 | 21.5±1 | 78.7±0.8 | 21.9±1 | 7±1.4 | |
| abc | hi | abcd | a | bcdef | abc | ||
| Puno | 61.2±3.7 | 3.6±0.5 | 20.4±1.1 | 80.1±1.7 | 20.7±1.1 | 7.9±2.3 | |
| abcde | i | abcd | abcd | def | abc | ||
| Q3 | 55.6±2.1 | 5.2±0.7 | 20.4±0.3 | 75.6±2 | 21.1±0.3 | 4.7±0.5 | |
| abcde | fgh | bd | abcd | cdef | bc | ||
| Q5 | 56±0.7 | 6.2±0.7 | 27.4±1.5 | 77.2±0.6 | 28.1±1.6 | 3.1±1.4 | |
| cd | abcdef | ab | abc | a | abc | ||
| 2018 | Titicaca | 52.3±1 | 6.8±0.4 | 20.8±1.2 | 71.7±0.2 | 21.9±1.3 | 5.3±1.3 |
| de | bc | abcd | d | bcdef | abc | ||
| Vikinga | 59.6±1 | 5.9±0 | 22.5±1.3 | 75.2±0.8 | 23.3±1.2 | 5±0.2 | |
| abc | adefg | abc | abcd | bcde | bc | ||
| Regalona | 62.1±0.6 | 5.3±0.3 | 23.2±0.4 | 77.3±0.4 | 23.8±0.4 | 6.9±0.7 | |
| ab | fgh | ac | ab | bc | abc | ||
| Puno | 61.4±2.1 | 5.3±0.5 | 23.1±0.5 | 77±1 | 23.7±0.5 | 6.3±2 | |
| abcde | efgh | ac | abcd | bcd | abc | ||
| Q3 | 50.7±0.9 | 5.2±0.1 | 18.4±0.5 | 74.1±0.6 | 19.1±0.5 | 7.9±1 | |
| e | fgh | d | cd | f | ab | ||
| Q5 | 52.5±1.9 | 7±0.2 | 22.9±1 | 73.1±1.2 | 24±0.9 | 3.9±2 | |
| bcde | ab | abcd | bcd | bc | abc | ||
| 2019 | Titicaca | 50.3±3.7 | 6.7±0.6 | 21.7±2 | 72.6±2.7 | 22.7±1.7 | 6.1±4.1 |
| abcde | abcd | abcd | abcd | bcde | abc | ||
| Vikinga | 55.4±1.7 | 5.3±0.2 | 19.6±1.3 | 74.9±0.6 | 20.3±1.3 | 5.3±1.1 | |
| abcde | bdefgh | cd | bcd | ef | abc | ||
| Regalona | 64.6±0.4 | 4.7±0.4 | 24.1±0.9 | 79.1±0.6 | 24.5±1 | 9.3±0.5 | |
| a | ghi | abc | a | b | a | ||
| Puno | 63.1±0.9 | 4.3±0.5 | 22.5±0.9 | 79.1±0.8 | 23±1 | 8.1±1.2 | |
| a | hi | abcd | a | bcde | abc | ||
| Q3 | 56.8±2.7 | 5.4±0.5 | 22.1±0.5 | 76.4±0.8 | 22.7±0.6 | 3.7±0.9 | |
| abcde | efgh | abc | abcd | bcde | bc | ||
| Q5 | 54.1±1.7 | 6.6±0.4 | 23.9±0.5 | 74.7±1.1 | 24.8±0.4 | 2.2±1.2 | |
| bcde | abcde | ac | abcd | b | c |
Mean±SD is given for each color parameter of the CIELAB and CIELCh color spaces. L*: Lightness from black (0) to white (100). a*: from green (-) to red (+) component. b*: blue (-) to yellow (+) component. h°: hue angle. C*: chroma (color saturation). ΔE: color difference. ΔE values are calculated relative to Titicaca cv. 2017 seeds. Different letters underneath indicate statistically significant differences performing a One-way ANOVA followed by a Tukey post-hoc test (a* and C*) or a Welch‘s ANOVA test followed by a Games-Howell post-hoc test (L*, b*, h°, and ΔE).