Thanks,
hp seedinlgs are shorter and slower to germinate, they also have an pinkish hypocotyl. But in a paper about seedling identification, the diagnostic was not accurate when gf gene was present, so i was unsure what would i've been able to check for selecting hp2^dg + gf plants.
I've made the mistake to oversow so i've selected against dg when transplanting seedlings, oops.
I've got only a few dg plants but as mentionned in the literature they are shorter and with darker leaves, dark green immature fruits, and darker red mature fruits.
https://cdnsciencepub.com/doi/pdf/10.4141/cjps65-014