Table 5.
Total Glucosinolate concentration (g%) in four phenotypes of Peruvian Maca (L. peruvianum) hypocotyls Small class: Yellow, Purple, Red and Black collected in Junin location at the altitude 4,200 m a.s.l. and analysed1 as fresh or after being dried with simultaneous comparison to dried four Maca phenotypes Small class as harvested in Ancash location (at 4,150 m a.s.l.)*
| Maca Phenotype | Fresh hypocotyls Junin (Small) | Dry hypocotyls Junin (Small) | Dry hypocotyls Ancash (Small) | ± SD |
|---|---|---|---|---|
|
| ||||
| Yellow (Amarillo) | 0.973 a I | 0.218 a II | 0.175 a II | ± 0.322 |
| Purple (Morado) | 0.821 a I | 0.303 ac II | 0.300 b II | ± 0.217 |
| Red (Rojo) | 1.821 b I | 0.508 b II | 0.220 ab III | ± 0.274 |
| Black (Negro) | 0.460 c I | 0.406 bc I | 0.289 b II | ± 0.101 |
| Mixture of individualvPhenotypes | n.d.2 | 0.316 ac I 3 | 0.302 b I 4 | ± 0.076 |
Values with unlike lower case letters within the columns indicate an existence of differences between Yellow, Purple, Red and Black Peruvian Maca phenotypes at statistically significant level (P<0.05), while unlike Roman numbers within the rows indicate significant differences (P<0.05) between results obtained from hypocotyls analysed as fresh or after being dried in Junin and Ancash location.
Total Glucosinolates results obtained with the use of the method by Li et al. (2001) and determined as the sum of Glucotropaeolin and m-methoxyglucotropaeolin, used as external standards;
n.d. - not determined;
Average weight of hypocotyls in the Maca Small class harvested in Junin = 7.2g; Percentage distribution of hypocotyls (by numbers) in analysed Junin Small class: Yellow/Purple/Red/Black = 55/18.4/ 20.2/6.3 (%);
Average weight of hypocotyls in the Maca Small class harvested in Junin = 3.5g; Percentage distribution of hypocotyls (by numbers) in analysed Ancash Small class: Yellow/Purple/Red/Black = 61.1/22.2/ 9.9/6.8 (%).