The time during which beta-ecdysone is required for the differentiation in vitro and in situ of wing imaginal discs of Drosophila melanogaster.
D000818:Animals; D002454:Cell Differentiation; D046508:Culture Techniques; D004331:Drosophila melanogaster / Q000502:physiology*; D004440:Ecdysone / Q000494:pharmacology* / Q000502:physiology; D007814:Larva / Q000502:physiology; D008675:Metamorphosis, Biological; D011679:Pupa; D013997:Time Factors; D014921:Wings, Animal / Q000166:cytology / Q000187:drug effects / Q000502:physiology*
D004440:Ecdysone