Table 2. Average prediction accuracies (r_GPA) and standard errors (SE) for seed yield (dt/ha), oil yield (dt/ha), seed oil content (%), seed glucosinolate content (GSL; μmol/g), seedling emergence (visual observation scale 1–9; good = 9), lodging resistance (visual observation scale 1–9; good = 9) and days to onset of flowering (DTF) derived from 500 rounds of cross-validation across the whole-population.

Traits	Seed yield (dt/ha)	Oil yield (dt/ha)	Seed oil content (%)	GSL (μmol/g)	Seedling emergence (good = 9)	Lodging resistance (good = 9)	DTF
rGPA±SE	0.45±0.002a	0.75±0.001	0.81±0.001	0.61±0.002	0.29±0.002	0.39±0.003	0.56±0.002

^aApproximate standard errors (SE) attached.