Higher-carbon sugars of opium poppy (Papaver somniferum L.).
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Chromatography, Paper↗
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Codeine and morphine in Papaver somniferum grown in a controlled environment.
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Codeine↗
Thebaine in tissue culture of Papaver bracteatum Lindl, population Arya II.
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Culture Techniques↗
Responses of poppy, Papaver somniferum, to photoperiod.
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Light↗
[Toxic and less toxic plants. Papaver].
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Humans↗
Effects of maturity and plant spacing on the morphine content of two varieties of Papaver somniferum L.
Two varieties of opium poppy were grown under irrigation for one season and their capsules analysed for morphine content by gas chromatography. Harvest of the capsules at 29-33 days after flowering (mature seed) gave 6.70 kg/ha morphine as compared to 5.36 kg/ha morphine in capsules harvested at 4-6 days after flowering. With constant row spacing (30 cm between double rows on ridges 102 cm apart), a plant spacing of 6 cm gave 20 per cent more morphine than either 12- or 18-cm spacing. There was no statistical difference in morphine content between a blue- and a white-seeded variety.
Arizona↗
Allergic contact dermatitis due to Icelandic poppy (Papaver nudicaule).
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Aged↗
Alkaloids and bioactivity of Papaver triniifolium.
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Alkaloids↗
[On the productivity of the early maturity strains in opium poppy (Papaver somniferum L.) (author's transl)].
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Morphine↗
[Studies on cultivation of Papaver somniferuw L. and extraction of the alkaloids. II. Growth of P. somniferum in different districts (author's transl)].
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Morphine↗
[Investigations on Bulgarian opium. I. Possibilities of widening the cultivation of Papaver somniferum L. and possibilities of production of opium with high content of morphine].
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Morphine↗
[Anatomical study of the lactiferous ducts in Papaver somniferum during vegetation].
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Opium↗
[Cultivation of medical poppy (Papaver somniferum); preliminary report].
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Humans↗
[Physiology and biosynthesis of alkaloids of Papaver sominferum].
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Alkaloids↗
[Studies on the morphine yield in Papaver somniferum L. under cultivation methods in central Germany].
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Germany↗
[Polarography of the alkaloids in the genus Papaver].
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Alkaloids↗
[Contributions on the physiology of Papaver alkaloids. The demethylation of codeine to morphine in the poppy plant].
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Alkaloids↗
[Toward a knowledge of Papaver alkaloids].
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Alkaloids↗