title: Nitrogen compounds as factors of embryogenesis in vitro.
mesh_terms: D003470:Culture Media; D009566:Nitrates / Q000494:pharmacology*; D010944:Plants / Q000187:drug effects / Q000196:embryology*; D011188:Potassium / Q000494:pharmacology
chemical_list: D003470:Culture Media; D009566:Nitrates; D011188:Potassium