Planta Medica, Table of Contents Planta Med 1981; 42(5): 45-49DOI: 10.1055/s-2007-971544 Research Articles © Hippokrates Verlag Stuttgart The Thebaine Content of Ornamental Poppies Belonging to the Papaver Section Oxytona Desmond Corrigan, Evelyn M. Martyn Department of Pharmacognosy, School of Pharmacy, Trinity College, University of Dublin Recommend Article Abstract PDF Download Buy Article Abstract Encouraging yields of thebaine have been obtained from Papaver bracteatum grown in Ireland. However climatic conditions adversely affect flower (and subsequent capsule production). Twelve vigorously flowering ornamental cultivars labelled P. orientale or “oriental poppy” were screened for the presence of thebaine. Five of the cultivars had no detectable thebaine. The thebaine content of the remaining 7 cultivars was determined. The capsules of the cultivar “Goliath” had a thebaine content of 3.0%. The identity of the thebaine was confirmed by isolation and examination of spectral evidence. In addition the two known N-oxides of thebaine were isolated and characterised from cv. Goliath. The combination of this chemical evidence and stomatal pore length measurements indicate that the plant labelled P. orientale cv. Goliath is closely related to P. bracteatum LINDL . This cultivar shows promise as a source of thebaine and has a potential in the hybridisation of genuine P. bracteatum to improve its flowering characteristics in mild climates. Key Word Index Papaver - Papaveraceae - Thebaine Content of Ornamental Cultivars PDF (249 kb)
